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Golf Ball patents

      

This page is updated frequently with new Golf Ball-related patent applications.

Golf accessory holding unit
A golf accessory holding unit includes an upper portion having a golf tee holding portion and a golf ball marker holding portion. A lower portion is connected to the upper portion via a curved portion.

Golf ball dimple plan shape
The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the plan shapes of the dimples thereon. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by low frequency periodic functions along a closed simple path.
Acushnet Company


Golf ball stopping device for simulating a putting green hole
The present disclosure is directed to a novel golf ball stopping device. The golf ball stopping device includes an upper plate, set at a height so it slows or stops a golf ball which rolls under the plate.

Hand wearable visual training aid device for golfing
A hand wearable visual training aid device worn by the hand of a golfer and for use with a golf club having a clubface is presented and described herein. The hand wearable visual training aid device includes a glove or hand strap and a clubface guide post mounted to the glove or hand strap.

Graphene core for a golf ball
A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene.
Callaway Golf Company


Golf ball covers made from plasticized thermoplastic materials
Multi-layered golf balls containing a two or three-layered cover assembly are provided. In one embodiment, the cover assembly includes a relatively hard inner cover and relatively soft outer cover.
Acushnet Company


Rubber composition, crosslinked rubber molded product and golf ball
[in the formula (1), m is a metal atom, and l is a carboxylate represented by the general formula (2). In the formula (2), r is a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, and the dotted line shows a resonance structure.

Dunlop Sports Co. Ltd.
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Multi-layered golf balls having foam center with selective weight distribution
Multi-layered golf balls having a core made of a foamed composition, preferably polyurethane foam, are provided. The ball includes a dual-layered core having a foam inner core (center) and surrounding outer core layer.
Acushnet Company


Multi-layer golf ball
Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet Company


Golf ball

[in the formula (1), m represents a metal atom, r1 and r2 represent an alkenyl group having 2 to 30 carbon atoms, an alkynyl group having 2 to 30 carbon atoms, an alkyl group having 1 to 30 carbon atoms or an aryl group having 6 to 30 carbon atoms, and m represents 1 or 2.]. .

Golf ball

An object of the present invention is to provide a golf ball exhibiting good shot feeling and excellent resilience. The present invention provides a golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains: (a) a base resin containing (a-1) an ionomer resin and having a material hardness of 59 or more in shore d hardness; and (b) a polyrotaxane having a cyclodextrin with at least a part of hydroxyl groups of the cyclodextrin being modified with a caprolactone chain via —o—c3h6—o— group, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin..
Dunlop Sports Co. Ltd.

Golf ball

An object of the present invention is to provide a golf ball having excellent shot feeling and resilience as well as improved durability and abrasion resistance. The present invention provides a golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains: (a) a base resin containing (a-1) an ionomer resin and having a material hardness of 58 or less in shore d hardness; and (b) a polyrotaxane having a cyclodextrin with at least a part of hydroxyl groups thereof being modified with a caprolactone chain via —o—c3h6—o— group, a linear molecule piercing through a cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin..
Dunlop Sports Co. Ltd.

Rubber composition, crosslinked rubber molded product and golf ball

[in the formula (1), m is a metal atom, r is a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, an alkenyl group having 2 to 18 carbon atoms or an alkynyl group having 2 to 18 carbon atoms, and n is an integer of 1 or more. A plurality of r and m may be identical to or different from each other.

Golf ball

To provide a golf ball that ensures both an improved durability and an extended flight distance, in which cracks or breakage of a core can be prevented while making the hardness of the core surface greater so as to obtain the greater difference in hardness between the core surface and the core center. The golf ball of the present invention includes a core and a cover that surrounds the core, in which the core includes a base rubber and an unsaturated carboxylic acid or its salt as a co-crosslinking agent, the core has a surface hardness of 80 or more in terms of jis-c hardness, and the unsaturated carboxylic acid or its salt contained in a region ranging from a surface of the core toward its center by less than 2 mm has an average particle diameter of less than 90 μm..
Bridgestone Sports Co., Ltd.

Golf ball

In a golf ball having a core and a cover consisting of a plurality of layers that encases the core, adhesion between adjoining cover layers is improved by judicious selection of the materials making up the cover layers, providing the ball with an improved durability to impact without diminishing the ball initial velocity.. .
Bridgestone Sports Co., Ltd.

Golf ball

An object of the present invention is to provide a golf ball comprising a cover excellent in color development over a long period of time. The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a resin composition containing a first base resin and a fluorescent pigment, the fluorescent pigment is a dispersion having a fluorescent dye dispersed in a second base resin, and an absolute value (.
sp1−sp2

Golf ball

An object of the present invention is to provide a golf ball having good spin performance on approach shots and good shot feeling as well as excellent stain resistance by precisely controlling physical properties of a paint film actually formed on a surface of a golf ball body. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film is such that a linear approximation curve obtained by a least square method has a slope in a range from 0.0015 to 0.0045 when a storage modulus (gpa) thereof measured by a nanoindentation method is plotted as a vertical axis against a measuring frequency (hz) as a horizontal axis, and that an elastic modulus thereof measured by a nanoindentation method ranges from 0.040 gpa to 0.600 gpa..
Dunlop Sports Co. Ltd.

Golf ball

An object of the present invention is to provide a golf ball having good spin performance on approach shots and good shot feeling as well as excellent stain resistance by precisely controlling physical properties of a paint film actually formed on a surface of a golf ball body. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film is such that a linear approximation curve obtained by a least square method has a slope in an absolute value ranging from 0.0001 to 0.0020 when a loss tangent tan δ thereof measured by a nanoindentation method is plotted as a vertical axis against a measuring frequency (hz) as a horizontal axis, and that an elastic modulus thereof measured by a nanoindentation method ranges from 0.040 gpa to 0.600 gpa..
Dunlop Sports Co. Ltd.

Colored golf ball

A colored golf ball has improved luxurious appearance without impairing its visibility. The colored golf ball of the present invention includes a core; a cover placed around the core having dimples formed on its surface; and a coating layer placed on top of the cover, in which the coating layer includes a polymer matrix having a bright material dispersed therein, and an l0 value, which represents an l value in the lab color system of the colored golf ball before being covered with the coating layer, is 25 or less, and the difference Δl between the l0 value and an l1 value, which represents an l value in the lab color system of the colored golf ball after being covered with the coating layer, is 5 or more..
Bridgestone Sports Co., Ltd.

Golf ball

A golf ball 2 includes a core 4, a cover 8 positioned outside the core 4, and a paint film 10 positioned outside the cover 8. The paint film 10 includes an inner layer 12 and an outer layer 14 positioned outside the inner layer 12.
Dunlop Sports Co. Ltd.

Golf ball

A golf ball 2 includes a main body 4 and a paint layer 6 positioned outside the main body 4. The main body 4 includes a spherical core 8, a mid layer 10 positioned outside the core 8, and a cover 12 positioned outside the mid layer 10.
Dunlop Sports Co. Ltd.

Golf ball

A golf ball has arranged thereon one or more dimples having a cross-sectional shape specified by a particular sequence of steps, and the total number of dimples on the ball surface is from 250 to 380. This ball has a reduced air resistance during flight, enhancing the aerodynamic performance and enabling an increased distance to be achieved..
Bridgestone Sports Co., Ltd.

Golf ball

In a golf ball having numerous dimples on its surface, at least a given proportion of the dimples are optimal dimples having momentum thicknesses smaller than those of reference model dimples, thereby increasing the aerodynamic performance at the ball surface and enabling an improved flight performance to be achieved.. .
Bridgestone Sports Co., Ltd.

Golf balls having foam inner core and thermoset outer core layer

Multi-piece golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Golf ball resin composition and golf ball

An object of the present invention is to provide a material from which a golf ball having excellent resilience and durability can be obtained. The present invention provides a golf ball resin composition containing: (a) at least one member selected from the group consisting of a polyamide, an ethylene-vinyl alcohol copolymer, a partially saponified product of an ethylene-vinyl acetate copolymer, and a polyvinyl alcohol, (b) at least one resin component selected from the group consisting of (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (c) a fatty acid metal salt having 18 or less carbon atoms..
Dunlop Sports Co. Ltd.

Golf ball resin composition and golf ball

An object of the present invention is to provide a golf ball resin composition having improved rebound resilience performance. The present invention provides a golf ball resin composition containing: (a) a thermoplastic resin having an infrared absorption peak in a region from 3200 cm−1 to 3600 cm−1, and (b) at least one resin component selected from the group consisting of (b-1) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-2) a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, (b-3) a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, and (b-4) a metal ion-neutralized product of a ternary copolymer composed of an olefin, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and an α,β-unsaturated carboxylic acid ester, wherein when a relaxation modulus er (−20° c., 9%) of the golf ball resin composition is measured under conditions of −20° c.
Dunlop Sports Co. Ltd.

Golf practice device

A golf chipping and putting training device supports a bucket at an angle for a golfer to practice chipping golf balls. The device includes a base support assembly configured to adjustably support the bucket at a selected angle.
I Get It, Llc

Low-interference golf tee saver set

A golf tee set with a keeper for preventing a golf tee from flying into a driving range or being lost, in which a first golf tee is tethered to a second golf tee, wherein a first point of attachment of the tether to the first golf tee is free of interfering force on at least the first golf tee, and wherein the tether is constructed of a filament having less weight, stiffness and resistance to twisting compared to a minimum weight, stiffness and resistance necessary to cause interference with the first golf tee loaded with a golf ball. In one embodiment, either tee can be used as an anchor, and the other tee played.

Golf ball

A golf ball includes a core and a cover. A difference (fb2−fc2) between a secondary natural frequency fb2 of the golf ball and a secondary natural frequency fc2 of the core is not less than 80 hz and not greater than 420 hz.
Dunlop Sports Co. Ltd.

Golf ball

A golf ball 2 includes a core 4 and a cover 6. A difference (fb2−fc2) between a secondary natural frequency fb2 of the golf ball 2 and a secondary natural frequency fc2 of the core 4 is greater than 420 hz and not greater than 760 hz.
Dunlop Sports Co. Ltd.

Golf ball

A golf ball 2 includes a core 4, a mid layer 6, a cover 8, and dimples 10. A shore c hardness hmc of the mid layer 6 is greater than a shore c hardness hs at a surface of the core 4.
Dunlop Sports Co. Ltd.

Golf ball

A golf ball 2 includes a core 4, a mid layer 6, and a cover 8. A hardness h75 at a point to which a distance from a central point of the core 4 is 75% of a radius of the core 4 is greater than a hardness h0 at the central point of the core 4.
Dunlop Sports Co. Ltd.

Golf ball incorporating highly crosslinked thermoset fluorescent microspheres and methods of making same

A golf ball comprising at least one layer consisting of a color-stable composition comprising a color concentrate composition comprising a carrier resin, at least one backer pigment and a plurality of highly crosslinked thermoset fluorescent microspheres having a hue that is substantially similar to a hue created by the at least one backer pigment. Each highly crosslinked thermoset fluorescent microsphere may be substantially spherical.
Acushnet Company

Dunlop Sports Co. Ltd.

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Method for making golf ball and golf ball made thereby

A method for making a golf ball includes: wrapping a sensing module with a polymeric band to produce a spherical core in which the sensing module is entirely enclosed by the polymeric band; molding a molding material to form an intermediate layer that surrounds the spherical core, wherein the polymeric band acts as a barrier to prevent the molding material from intruding into the sensing module through the polymeric band; and molding a shell to surround the intermediate layer. A golf ball is also provided, and includes a spherical core, an intermediate layer surrounding the spherical core, and a shell surrounding the intermediate layer.
Launch Technologies Co., Ltd.

Golf club head or other ball striking device having impact-influencing body features

A ball striking device, such as a golf club head, has a face member with a striking surface configured for striking a ball and a flange that comprises a portion of the crown. The flange being made of at least two members that are made of different materials, where a second material has a lower modulus of elasticity than the first material.
Karsten Manufacturing Corporation

Golf ball holder and method thereof

An apparatus has a golf ball holder including a receiver assembly having a resilient wall. The resilient wall is configured to: (a) form a stressed shape in response to the application of a stressing force to the resilient wall of the receiver assembly, and in the stressed shape, a golf ball is releasable from the receiver assembly; and (b) form an unstressed shape in response to the removal of the stressing force from the resilient wall of the receiver assembly, and in the unstressed shape, the receiver assembly is ready to receive and to hold the golf ball..

Process for making a golf ball with a built-in sensor

A process for making a golf ball includes steps of: a) providing a spherical hollow core which is made from a deformable resilient material, which defines a central chamber, and which includes left and right hemispherical bodies with contiguous circular surfaces having separated upper segments movable away from each other to permit placement of a sensing assembly into the central chamber, b) molding an intermediate shell layer at an elevated temperature that is lower than a softening point of the deformable resilient material to enclose the spherical hollow core, and c) molding a cover to enclose the intermediate shell layer.. .
Launch Technologies Co., Ltd.

Golf ball

A golf ball 2 includes a core 4, a mid layer 6 positioned outside this core, and a cover 8 positioned outside this mid layer. When a total thickness of the mid layer 6 and the cover 8 is denoted by l (mm), a shore c hardness at a point a away from a surface of the core 4 toward a central point of the core 4 by 5l (mm) is denoted by ha, a shore c hardness at a point b away from the surface of the core 4 toward the central point of the core 4 by 2.5l (mm) is denoted by hb, and a shore c hardness at the central point of the core 4 and shore c hardnesses of the mid layer 6 and the cover 8 are denoted by h0, hm, and hc, respectively; the golf ball 2 satisfies hc−hb>0, hm−h0>0, and ha−hm>0..
Dunlop Sports Co. Ltd.

Golf balls having dual-layered cores with metal-containing centers and thermoplastic outer cores

Multi-piece golf balls containing a dual-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer.
Acushnet Company

Golf ball

5<hc−hs<20  (iv). .

Golf ball aerodynamic configuration

The present invention concerns golf balls having a modified aerodynamic configuration and a method for creating a modified aerodynamic configuration that improves dimple coverage, interdigitation, and non-alignment in golf ball dimple patterns by rotating the repeating area elements about their pre-determined center points, with further optional steps of expanding or contracting the elemental arrangements about their pre-determined center points, enlarging or reducing the sizes of dimples, and adding extra dimples to occupy land areas created by the previous steps. The resulting modified aerodynamic configuration with a rotated element has increased dimple coverage, greater interdigitation and improved non-alignment..
Acushnet Company

Golf ball aerodynamic configuration

The present invention concerns golf balls having a modified aerodynamic configuration and a method for creating a modified aerodynamic configuration that improves dimple coverage, interdigitation, and non-alignment in golf ball dimple patterns by rotating the repeating area elements about pre-determined center points, with further optional steps of expanding or contracting the elemental arrangements about pre-determined center points, enlarging or reducing the sizes of dimples, and adding extra dimples to occupy land areas created by the previous steps. The resulting modified aerodynamic configuration with a rotated element has increased dimple coverage, greater interdigitation and improved non-alignment..
Acushnet Company

Golf ball

A golf ball 2 has a large number of dimples 10 on a surface thereof. Fifteen axes are assumed for a phantom sphere of the golf ball 2.
Dunlop Sports Co. Ltd.

Golf putting training device

A golf putting training device is provided. The training device includes a body having a forward end, an aft end, an upper surface extending between the forward end and the aft end, at least one base surface that defines a contact plane, and a slot open through a portion of the upper surface and the forward end, and which slot has a width greater than the diameter of a golf ball.

Golf putting training device

A golf putting training device is provided. The training device includes a body having a forward end, an aft end, an upper surface extending between the forward end and the aft end, at least one base surface that defines a contact plane, and a slot open through a portion of the upper surface and the forward end, and which slot has a width greater than the diameter of a golf ball.

Simulation apparatus, simulation method, and simulation system

A simulation apparatus includes an obtaining unit configured to obtain a measurement result of a test shot of a first golf club performed by a testing golfer, and a calculation unit configured to calculate a simulated ball-striking result which is obtained if the testing golfer strikes a golf ball by a second golf club which has a specification different from the first golf club. The calculation unit determines a swing characteristic of the testing golfer based on the measurement result.
Bridgestone Sports Co., Ltd.

Golf club head with flexure

A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
Acushnet Company

Multi-piece solid golf ball

In a multi-piece solid golf ball having a two-layer core with an inner core layer and an outer core layer, a cover, and at least one intermediate layer between the core and cover, the inner and outer core layers are formed of different rubber compositions, and the intermediate layer and the cover are formed of different resin compositions. The inner core layer diameter, the hardness relationship between the surface of the outer core layer and the center of the inner core layer, and the material hardness of the intermediate layer fall within specific ranges.
Bridgestone Sports Co., Ltd.

Multi-piece solid golf ball

In a golf ball having a core, an outermost layer and an intermediate layer therebetween, the intermediate layer is formed of a thermoplastic resin composition that includes (a) an ionic olefin-methacrylic acid-unsaturated carboxylic acid ester copolymer, (b) a nonionic olefin-acrylic acid copolymer, (c) an organic acid or a metal salt thereof, and (d) a basic inorganic metal compound, and the outermost layer is formed of a thermoplastic resin composition that includes (a) a specific ionic olefin-unsaturated to carboxylic acid copolymer and (h) a specific ionic olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester copolymer. The ratio (tan δ) between the tensile storage modulus (e′) and the tensile loss modulus (e″) in a dynamic viscoelasticity test on the outermost layer-forming resin composition conducted under specific conditions is not more than 0.150.
Bridgestone Sports Co., Ltd.

Golf ball

A golf ball contains, as a structural element therein, a molded and crosslinked material obtained from a rubber composition which includes: (a) a base rubber (b) an α,β-unsaturated carboxylic acid and/or a metal salt thereof, (c) a crosslinking initiator, and (d) a metal carboxylate in which the carboxylic acid bonded to metal is of two or more different types and at least one of the carboxylic acids has 8 or more carbon atoms. The rubber composition has an improved processability in kneading and other operations, and the decrease in the initial velocity of the ball core resulting from the inclusion of additives can be held to a minimum..
Bridgestone Sports Co., Ltd.

Rubber composition for golf balls and preparation thereof

A rubber composition for golf balls includes (i) a base rubber, (ii) an unsaturated carboxylic acid and/or a metal salt thereof, (iii) a crosslinking initiator, and (iv) cellulose nanofibers. This rubber composition can further improve the durability of the ball without requiring the use of high-cost fibrous substances as compounding ingredients.
Bridgestone Sports Co., Ltd.

Method and device for returning golf balls

A method and a device for automatically returning golf balls towards a golfer over a predefined track, in particular for putting training on golfing greens, in which distances from a golf hole are different, includes a motorized lifting device having lowered and lifted positions of the golf ball and controllable assemblies generating a driving force causing the golf ball to roll down from its lifted position along a specific length and guiding the ball to the golfer by using a position guidance system. Preferably, a microcontroller is associated with the force-generating assemblies for controlling the required length of the rolling down motion.

Golf club with flexure

A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency..
Acushnet Company

Multi-layer core golf ball

Golf balls having a very high positive gradient multilayer core are provided. The multilayer core includes an outer core layer and a very soft, low compression inner core layer.
Acushnet Company

Multi-piece solid golf ball

In a multi-piece solid golf ball which includes a core of at least one layer, a cover of at least one layer, and at least one intermediate layer interposed between the core and the cover, the cover is composed primarily of polyurethane and the following parameters are controlled within specific ranges: core deflection, melt flow rate of intermediate layer material, thickness of intermediate layer, thickness and shore d hardness of cover, combined thickness of intermediate layer and cover, and the value of (shore d hardness of cover material)−(shore d hardness of intermediate layer material). This golf ball has a good, soft feel at impact and lowers the rate of spin on full shots, achieving a good distance..
Bridgestone Sports Co., Ltd.

Polyurethane-ionomer hybrid resin composition for golf ball cover and golf ball including cover formed using the same

A polyurethane-ionomer hybrid resin composition for a golf ball cover having excellent elastic reaction force and backspin performance comprises 100 parts by weight of a modified ionomer having a number average molecular weight in a range of 1,000 to 2,400, provided as a reaction product generated by a reaction among a polyol including hydroxyl groups on opposing ends of the polyol, a monomer of acrylic acid or methacrylic acid having 2 to 3 functional groups, and zirconia, and modified in such a manner that a polyester oligomer in a zirconia complex state and a zirconia filled state is added to an ionomer resin to be reacted, and a portion of unsaturated carboxylic acid of an ionomer is neutralized to be zirconium and additionally polymerized to be the polyester oligomer; 20 to 40 parts by weight of a block polyurethane prepolymer with respect to 100 parts by weight of the modified ionomer; 70 to 100 parts by weight of the ionomer with respect to 100 parts by weight of the modified ionomer; and 1 to 10 parts by weight of a chain extender with respect to 100 parts by weight of the block polyurethane prepolymer.. .
Volvik Inc.

Golf ball

A golf ball 2 includes a main body 4 and a paint layer 6 positioned outside the main body 4. The main body 4 includes a spherical core 8, a mid layer 10 positioned outside the core 8, and a cover 12 positioned outside the mid layer 10.
Dunlop Sports Co. Ltd.

Golf ball dimple shape

The present invention is directed to golf balls having improved aesthetics and desirable aerodynamic properties due, at least in part, to the novel shape of the dimples on the surface thereof. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a shape obtained from the intersection of a toroid and a sphere.
Acushnet Company

Golf ball paint composition

A golf ball paint composition includes primarily a urethane paint containing polyol as a base resin and polyisocyanate as a curing agent. Two types of polyester polyol are used as the polyol, and the composition has an elastic work recovery of at least 70%.
Bridgestone Sports Co., Ltd.

Golf swing training aid

A golf training apparatus includes an elongated member having opposite first and second ends. A base is coupled to the first end of the elongated member; and the base includes an end portion to secure the apparatus in a stationary position so that the elongated member extends upward from the base.

Groove pattern for a putter head

A putter head is provided. The putter head includes a putter face defining a groove pattern extending in a heel-to-toe direction of the putter face.
Tru2sports Llc

Golf club head nicluding impact influencing flexure joint

A hollow golf club head includes an inner surface and an outer surface, the golf club head further comprises a strike face operative to impact a golf ball, a body extending rearward from a perimeter of the strike face, and a flexure joint extending from the outer surface to the inner surface. The flexure joint includes a forward impact surface, a reaction surface in contact with the impact surface, and during an impact, the impact surface translates along the reaction surface to permit a controlled deflection of a portion of the strike face..
Karsten Manufacturing Corporation

Golf ball

An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, an intermediate layer and a cover, wherein a difference (hx+1−hx−1) between a hardness (hx+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (hx−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in shore c hardness, a surface hardness (hx+y) of the spherical core is more than 65 in shore c hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, a total thickness of a thickness (tm) of the intermediate layer and a thickness (tc) of the cover is 3 mm or less, and the cover has a highest hardness among the constituent members of the golf ball..
Dunlop Sports Co. Ltd.

Golf club training apparatus

An apparatus for viewing the position of a golf club head face relative to a golf ball includes one or more sensors and a wireless transceiver. The one or more sensors detect the position of the golf club head relative to the golf ball at a plurality of locations.

Golf ball launch monitor target alignment method and system

A golf ball launch monitor is disclosed that may be used with an alignment stick. The monitor has a default alignment and an image sensor adapted to capture an image of the alignment stick and communicate that image to a processor.
Wawgd, Inc.

Golf putter head for ensuring pure roll

A new golf putter head is disclosed, comprising an upper portion and a sole pillar, wherein the upper portion comprises a strike face and the bottom edge of the strike face is at a height within 0.375″ of the golf ball equator, and the sole pillar does not contact the ball at any point during the swing.. .

Multi-piece solid golf ball

In a multi-piece solid golf ball having a rubber two-layer core consisting of an inner layer and an outer layer, a cover, and at least one intermediate layer therebetween, the inner core layer has a diameter of at least 22 mm, the difference in jis-c hardness between the center of the inner core layer and the surface of the outer core layer is at least 25, the ball satisfies the relationship a/b≤2.0, where a and b are the deflections of, respectively, the inner core layer and the two-layer core when compressed under specific loading conditions, and the intermediate layer has a higher material hardness than the cover, and the core hardness profile are optimized by the specific conditions. This ball enables mid- to high-level golfers both to achieve even longer distances and to maintain the spin performance on approach shots at a high level..
Bridgestone Sports Co., Ltd.

Golf ball

In order to satisfy at a high level the golf ball flight and control performances relied on by professional golfers and skilled amateurs, this invention provides a multi-piece solid golf ball g having a core 1, a cover 3 and an intermediate layer 2 therebetween wherein, letting hc be the jis-c hardness at a center of the core, h12 be the jis-c hardness at a position 12 mm from the core center and ho be the jis-c hardness at a surface of the core, the core has a hardness profile which satisfies the condition (ho−h12)−(h12−hc)≥10; letting (ho−h12)−(h12−hc) above be a, the spin index of the ball, defined as the dynamic coefficient of friction of the ball multiplied by a, is at least 3.0; and the hardness profile index, defined as the deflection (mm) of the core when compressed under a final load of 1,275 n (130 kgf) from an initial load of 98 n (10 kgf) multiplied by a, is at least 40.. .
Bridgestone Sports Co., Ltd.

Three-layer-core golf ball having highly-neutralized polymer outer core layer

A golf ball includes an inner core layer formed from a thermoset rubber composition. The inner core layer has a first outer surface shore d hardness and an outer diameter of about 0.8 to 1.40 inches.
Acushnet Company

Three-layer-core golf ball having highly-neutralized polymer outer core layer

A golf ball includes an inner core layer formed from a thermoset rubber composition. The inner core layer has a first outer surface shore d hardness and an outer diameter of about 0.8 to 1.40 inches.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Exercise balance and flexibility method

A method for performing different balancing and squatting exercises that uses a kit includes a clip that attaches to the front edge of the brim on a hat or visor worn by the exerciser. Attached to the clip is a length adjustable string that attaches to a weight, such as a golf ball.

Golf club head having stiffening members and variable face thickness

A golf club head comprising a body, a variable face thickness pattern, and a plurality of solid metal stiffening rods, and which satisfies the equation vballnorm≥0.0356x+140.82, is disclosed herein. The body comprises a face, a sole, and a return section, and defines a hollow interior.
Callaway Golf Company

Golf ball retrieval apparatus

A golf ball retrieval apparatus for retrieving a golf ball from a cupped hole is provided. The golf ball retrieval apparatus comprises an outer tube and an inner shaft slidably receivable within the outer tube.

Golf ball

An object of the present invention is to provide a golf ball having an excellent flight performance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein a hardness difference d1 (h75−h0) between a hardness h75 at a point located at a distance of 75% of a core radius from a center of the spherical core and a center hardness h0 of the spherical core is 15 or more and 35 or less in shore c hardness, a hardness difference d2 (hs−h75) between a surface hardness hs of the spherical core and the hardness h75 at the point located at the distance of 75% of the core radius from the center of the spherical core is −1 or more and 3.5 or less in shore c hardness, and a hardness difference d3 ((h0+h75)/2−h37.5) between a hardness of (the center hardness h0 of the spherical core+the hardness h75 at the point located at the distance of 75% of the core radius from the center of the spherical core)/2 and a hardness h37.5 at a point located at a distance of 37.5% of the core radius from the center of the spherical core is 0.5 or more and 6.5 or less in shore c hardness..
Dunlop Sports Co. Ltd.

Golf balls having a foam center

Multi-layered golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Golf ball and manufacture

The invention provides a golf ball having a core and a cover of one or more layer encasing the core, wherein the core is formed of a rubber composition that includes a base rubber, a co-crosslinking agent and an organic peroxide. The core has a center portion and a surface portion that are unfoamed regions, and has an intermediate portion that contains a foamed region.
Bridgestone Sports Co., Ltd.

Golf ball

A golf ball includes a spherical core, and a cover covering the spherical core. The spherical core is formed from a rubber composition including a base rubber, a co-cross-linking agent, a cross-linking initiator, and an unsaturated fatty acid and/or a metal salt thereof, the co-cross-linking agent includes α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof, the unsaturated fatty acid and/or metal salt thereof excludes an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and a metal salt thereof, an unsaturated aliphatic carboxylic acid that forms the unsaturated fatty acid and/or metal salt thereof has a functional group other than a carboxy group and a carbon-carbon unsaturated bond, and the rubber composition further includes a metal compound when the co-cross-linking agent is only an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms..
Dunlop Sports Co. Ltd.

Smart system for display of dynamic movement parameters in sport and training

A system that wirelessly integrates actual golf equipment with a computer and the internet to allow players remotely located from one another to play a competitive real or simulated game of golf. An individual player may opt to play solo or practice to improve basic golfing techniques.

Golf ball

An object of the present invention is to provide a golf ball having an excellent flight performance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein a hardness difference d1 (h75−h0) between a hardness h75 at a point radially located at a distance of 75% from a center of the spherical core and a center hardness h0 of the spherical core is 10 or more and 27 or less in shore c hardness, and a hardness difference d2 (hs−h75) between a surface hardness hs of the spherical core and the hardness h75 at the point radially located at the distance of 75% from the center of the spherical core is 0 or more and 6.5 or less in shore c hardness..
Dunlop Sports Co. Ltd.

Golf ball dimple profile

The present invention concerns a golf ball having dimples with a cross-sectional profile comprising a conical top portion and a non-conical bottom portion. More particularly, the profiles of the present invention are defined by three independent parameters: dimple diameter (dd), edge angle (Φedge), and saucer ratio (sr).
Acushnet Company

Golf training aid simulating a grass cutting motion

A golf training aid simulating a grass whip consists of a club shaft, a neck portion, and a blade portion. The blade portion is connected to the club shaft via the neck portion.

Centerline face-forward putting

A method for a golfer to putt a golf ball over the surface of a green toward a hole comprises selecting a target line on the green, assuming a stance next to the ball facing the hole, addressing the ball by gripping the shaft of a putter and positioning it behind the ball with the hands generally facing toward one another in front of and facing the golfer's body, executing a backstroke by drawing the hands toward the body's vertical centerline to swing the arms rearwardly about an axis of rotation through the shoulders to take the putter head away from the ball along a rearward extension of the target line, and transitioning to and executing a forward stroke by moving the hands in a forward direction away from the golfer's body to swing the arms about the axis of rotation to stroke the putter head to strike the ball for rolling it along the target line.. .
On Cue Golf Inc.

Laser golf putting guide

A laser golf putting guide is positioned behind a golf ball and illuminates a stationary straight line from behind the golf ball to the golf pin cup or hole. The stationary straight line assists the golfer in putting..

Golf balls having a core with surrounding intermediate foam layer

Multi-layered golf balls having a core, intermediate layer, and cover are provided. The ball includes a non-foamed inner core (center) made of a thermoplastic or thermoset composition such as polybutadiene rubber.
Acushnet Company

Golf ball

The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, the core being formed of a material molded under heat from a rubber composition containing: (a) a base rubber, (b) an organic peroxide, and (c) water and/or a metal monocarboxylate. The core has a hardness profile which satisfies specific relationships between the jis-c hardness at the core center (cc), the jis-c hardness at a position 10 mm from the core center (c10) and the jis-c hardness at the core surface (cs)..
Bridgestone Sports Co., Ltd.

Golf ball

An object of the present invention is to provide a golf ball excellent in durability. The present invention provides a golf ball comprising a constituent member containing a crosslinked rubber component and a polyrotaxane component, wherein the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —o—c3h6—o— group..
Dunlop Sports Co., Ltd.

Golf ball cover coating composition and golf ball using the same

Provided is a golf ball manufactured using a golf ball cover coating composition that reduces the influence of external light on a golfer during outdoor use due to low surface gloss and reduces damage to the surface of the golf ball caused by external impact due to excellent impact resistance and cutting resistance.. .
Volvik Inc.

Golf ball dimple profile

A golf ball having dimples with cross-sectional profile shapes defined by the product of a base profile and one or more weighting functions, where at least two dimples are modified with a continuous weighting function having different base profiles is disclosed.. .
Acushnet Company

Method of making a golf ball incorporating at least one elongated thermoset layer

Method of making a golf ball comprising: providing a subassembly and a thermoset polymer composition; partially curing the thermoset polymer composition and elongating same while in a partial cure state; forming a layer about the subassembly comprising the thermoset polymer composition; and further curing the thermoset polymer composition. A moldable thermoset polymer composition may be elongated while in state of partial cure.
Acushnet Company

Golf balls incorporating double network cross-linked compositions comprising a base thermoplastic

Golf ball comprising at least one layer consisting of a double network cross-linked composition comprising a mixture of a base thermoplastic polymer composition and a double network polymer composition. The double network polymer composition comprises a plurality of particulates of a polymer composition that is elongated from 10% to 200%, or at least 50%, or at least 100% or at least 150% or 200% or greater during a partial cure state..
Acushnet Company

Golf balls incorporating double network cross-linked compositions comprising a base thermoset composition

Golf ball comprising at least one layer consisting of a double network cross-linked composition comprising a mixture of a base thermoset polymer composition and a double network polymer composition. The double network polymer composition comprises a plurality of particulates of a polymer composition that is elongated from 10% to 200%, or at least 50%, or at least 100% or at least 150% or 200% or greater during a partial cure state..
Acushnet Company

Graphene core for a golf ball

A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene.
Callaway Golf Company

Multi-piece solid golf ball

A multi-piece solid golf ball having a core, at least one intermediate layer encasing the core and at least one outer layer encasing the intermediate layer is characterized in that the intermediate layer is formed of a resin composition containing a specific acid-containing polymer or ionomer resin, and the outer layer is formed of primarily a polyurethane or a polyurea. The ball also has, between the intermediate layer and the outer layer, a bonding layer made of a polycarbonate and/or polyether-type aqueous polyurethane dispersion composition which includes a specific aqueous polycarbodiimide..
Bridgestone Sports Co., Ltd.

Virtual golf system and methods

Virtual golf system for playing golf, comprising a plurality of trackable golf balls, wherein each golf ball comprises transmitting means for broadcasting electromagnetic beacon signals for detecting a position of the golf ball, a position determination unit comprising three receiving antenna's arranged for receiving beacon signals broadcasted by any of said plurality of trackable golf balls, and wherein said position determination unit is arranged to determine a position of said golf ball on a driving range based on time differences of a broadcasted beacon signal received by said receiving antenna's. A plurality of trackable golf balls and a plurality of players may be active at the same time.

Taylor Made Golf Company, Inc.

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Method for dyeing golf balls and dyed golf balls

A golf ball of a first color is dyed to a second color with an anionic or nonionic disperse dye. Either or both of a pigmented coating layer or an optional clear coating layer on the pigmented coating layer comprises a member selected from the group consisting of polyurethanes, polyureas, polyamides, and combinations thereof, which can be dyed by the anionic or nonionic disperse dye..
Nike, Inc.

Golf club

A golf club head includes a golf club body including a sole, a crown connected to the sole by a skirt, and a hosel connected to at least one other feature of the golf club body; a face connected to the a front end of the golf club body; and features allowing striking of a golf ball above the ideal strike location.. .
Taylor Made Golf Company, Inc.

Golf ball with soft feel

Wherein the core has a pga compression of less than 70, and the core/inner mantle layer/intermediate mantle layer combined construct has a pga compression of at least 30.. .

Modulus transition layers for stiff core golf balls

A golf ball is provided that includes at least two layers of material disposed between a spherical core and a cover layer, wherein the elastic modulus of each is within three orders of magnitude of each adjacent layer or core. The spherical core can be a hollow metal core.
Oncore Golf Technology, Inc.

Smart putter for golf club

Disclosed is a smart putter for a golf club including a putter head having a putting surface for putting a golf ball on one side thereof, a swing detecting unit that is provided in the putter head to detect a balance degree of the putter head, a communication module that is provided in the putter head to transmit balance degree data of the putter head detected by the swing detecting unit to an external device, and a control unit that stores the balance degree data of the putter head detected by the swing detecting unit and transmits the balance degree data to the communication module.. .
Idealink, Inc.

Golf ball cores made from plasticized thermoplastic compositions containing non-acid polymers

Multi-layered golf balls containing a two-layered core assembly are provided. Preferably, at least one of the core layers is formed from a thermoplastic composition that comprises: a) thermoplastic non-acid polymer, and b) plasticizer.
Acushnet Company

Golf ball incorporating positive hardness gradient thermoset polyurethane outer cover layer

Golf ball comprising a positive hardness gradient core and an outer cover layer having a microhardness gradient and being formed from a thermoset polyurethane material throughout, and having: i) a treated region that is contacted with a thermoset polyurethane microhardness-increasing solution consisting of an isocyanate portion and at least one non-aqueous solvent; and ii) an untreated region that is not contacted with the thermoset polyurethane microhardness-increasing solution. The treated region comprises the isocyanate portion, whereas the untreated region does not comprise the isocyanate portion.
Acushnet Company

Durable large and regulation weight golf ball incorporating foamed intermediate layer

Large diameter golf balls having at least one foamed intermediate layer are provided.. .
Acushnet Company

Golf balls having multi-layered core with metal-containing center and thermoplastic outer layers

Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer.
Acushnet Company

Dimple patterns with surface texture for golf balls

The present invention provides a golf ball having an outer surface comprising a plurality of dimples covering greater than 70 percent of the outer surface, wherein a plurality of the dimples incorporate directional surface texturing therein. The directional surface texturing preferably comprises substantially parallel channels or protrusions formed within the dimples.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Dunlop Sports Co. Ltd.

. .

Dunlop Sports Co. Ltd.

. .

Backyard tailgating golf game

A tailgating game assembly including a first platform, a second platform, a projectile a first deformable target, a second deformable target, a third deformable target, and a club. In use, the club is used to hit the projectile off of the platform towards the three deformable targets.

Golf balls comprising medium hardness gradient core

A golf ball includes a core having an outer surface and a geometric center. The core is formed from a substantially homogenous rubber composition.
Acushnet Company

Multi-layer golf ball

The present invention is directed to multi-layer golf balls including a layer formed from a composition comprising a relatively soft or low modulus hnp, a layer formed from a composition comprising a relatively hard or high modulus hnp, an inner cover layer formed from a thermoplastic composition, and an outer cover layer.. .
Acushnet Company

Golf ball

In the mathematical formula, lav represents an average value of distances l between the minute projections 18 and other minute projections 18 adjacent to the minute projections 18, and tav represents an average value of widths t of these minute projections 18.. .

Golf ball

A golf ball includes a spherical core, and a cover covering the spherical core. The spherical core is formed from a rubber composition including a base rubber, a co-cross-linking agent, a cross-linking initiator, an unsaturated fatty acid and/or a metal salt thereof, and an aromatic carboxylic acid and/or a metal salt thereof, the co-cross-linking agent includes an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof, the unsaturated fatty acid and metal salt thereof excludes an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and a metal salt thereof, and the rubber composition includes a metal compound when the co-cross-linking agent contains only an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms..
Dunlop Sports Co. Ltd.

Golf ball

An average value pav of pitches p between the minute projections 18 and other minute projections 18 adjacent to the minute projections 18 is not less than 10 μm and not greater than 2000 μm.. .

Golf ball

An object of the present invention is to provide a golf ball traveling a great flight distance. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a ratio (t2/t1) of a time (t2) to a time (t1) of 1.05 or more in a hitting test using a driver (at a head speed of 40 m/sec), wherein the time (t1) is a time taken from a moment that the driver begins to contact with the golf ball to a moment that the golf ball reaches a maximum deformation amount, and the time (t2) is a time taken from the moment that the golf ball reaches the maximum deformation amount to a moment that the golf ball leaves the driver..
Dunlop Sports Co. Ltd.

Non-conforming golf balls

Golf balls having an initial velocity greater than 255 ft/sec and/or an overall distance of greater than 320 yards are disclosed. The golf balls comprise one or more core layers, one or more cover layers, and optionally one or more intermediate layers disposed between the core and the cover.
Acushnet Company

Golf balls having multi-layered cores with thermoset outer layer

Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer.
Acushnet Company

Dunlop Sports Co. Ltd.

. .

Method and device for providing guiding for executing a golf swing

The present invention is related to a method and to a device for providing guiding to a user for executing a golf swing with a golf club on a golf ball towards a target, said method being implemented in an electronic device comprising a display in communication with a control unit, said display being placed in the line-of-sight of the user.. .

Ball for ball game and manufacturing the same

A golf ball including a spherical body, first regions, and second regions. The spherical body includes a core layer and a cover layer made from a synthetic resin covering the core layer.
The Yokohama Rubber Co., Ltd.

Golf ball

A golf ball 2 includes a core 4, a mid layer 6, a reinforcing layer 8, and a cover 10. When distances (%) from the central point of the core 4 to nine points and jis-c hardnesses at the nine points, which are obtained by dividing a region from the central point of the core 4 to the surface of the core 4 at intervals of 12.5% of the radius of the core 4, are plotted in a graph, r2 of a linear approximation curve obtained by a least-square method is equal to or greater than 0.95.
Dunlop Sports Co. Ltd.

Low compression golf ball

A golf ball includes a core, a mantle and a cover layer. The core includes polybutadiene and has a diameter of less than 1.45 inches.
Wilson Sporting Goods Co.

Golf balls having volumetric equivalence on opposing hemispheres and symmetric flight performance and methods of making same

Golf balls according to the present invention achieve flight symmetry and overall satisfactory flight performance due to a dimple surface volume ratio that is equivalent between opposing hemispheres despite the use of different dimple geometries, different dimple arrangements, and/or different dimple counts on the opposing hemispheres.. .
Acushnet Company

Golf ball

Rs≧−2.5*so+273   (1). .

Curvilinear golf ball dimples and methods of making same

The present invention is directed to golf balls having surface textures with unique appearances and improved aerodynamic characteristics due, at least in part, to the use of curvilinear dimple plan shapes. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by a number of convex or concave arcs that are derived from the vertices of a regular n-sided polygon, for example, an equilateral triangle or square..
Acushnet Company

Golf ball dimple plan shapes and methods of generating same

The present invention relates to golf balls having improved packing efficiency and aerodynamic characteristics and a high degree of dimple interdigitation. In particular, the present invention relates to a golf ball including at least a portion of dimples having a plan shape defined by low frequency periodic functions having high amplitudes.
Acushnet Company

Golf balls having volumetric equivalence on opposing hemispheres and symmetric flight performance and methods of making same

Golf balls according to the present invention achieve flight symmetry and overall satisfactory flight performance due to a dimple volume ratio that is equivalent between opposing hemispheres despite the use of different dimple geometries on the opposing hemispheres.. .
Acushnet Company

Golf ball dimple profile

The present invention concerns a golf ball having dimples with a cross-sectional profile comprising a conical top portion and a non-conical bottom portion. More particularly, the profiles of the present invention are defined by three independent parameters: dimple diameter (dd), edge angle (Φedge), and saucer ratio (sr).
Acushnet Company

. .

Dunlop Sports Co. Ltd.

. .

Golf balls comprising a plasticized polyurethane layer

A golf ball comprising a core and a cover layer, wherein at least one of the core or cover layer comprises a plasticized polyurethane composition comprising at least one polyurethane and at least one plasticizer.. .
Acushnet Company

Golf ball

Rs≧−2.5*so+273  (5). .

Golf ball cores having foam center and thermoset outer layers with hardness gradients

Multi-layered golf ball core sub-assemblies and the resulting golf balls are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Buoyant, high coefficient of restitution (cor) golf ball having a reduced flight distance yet the perceived flight trajectory of regular distance high cor golf balls

Golf ball having cor of at least 0.810, specific gravity sgb of less than 1.00 g/cc, and initial velocity of at least 250 ft/s and comprising a first layer l1, a second layer l2 surrounding l1, and a third layer l3 surrounding l2. L1 is formed from at least one highly neutralized polymer and has first specific gravity sg1; l2 is formed from at least one partially neutralized polymer and has second specific gravity sg2; and l3 is formed from at least one of a thermoset or thermoplastic composition and has third specific gravity sg3.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Golf course sand bunker with liner and making the same

A stabilized course sand bunker and method of making the same is disclosed. The soil making up the bunker is contoured and stabilized so that it is in the form of a pit having a downward angularly extending keyway surrounding the opening at the top edge of the pit.
Bunkersplus Llc

Digital verification of single stroke achievement

A single golf stroke achievement is forensically validated with minimal observer influence by digitally or electronically identifying a golfer and a golf ball, producing video recordings of the golf stroke, a subsequent flight of the ball, and arrival of the ball (if this occurs) at a target area which contains a golf cup, and detecting and recording entry of the golf ball into the cup (if this occurs).. .

Golf club head

A golf club providing improved golf ball launch conditions is disclosed herein. The golf club includes a face component and a sole comprising an elongated recess disposed proximate the face component.
Callaway Golf Company

Golf putter

A golf putter and more specifically a putter head is configured to retrieve a golf ball from a cup on a putting green or to pick up a golf ball from any surface upon which the golf ball is resting. The putter head has a generally c-shaped configuration and defines a centrally located cylindrical channel sized to engage a golf ball and retain the golf ball at a lower end of the channel until removed by hand..

Golf ball

An ultra-low compression golf ball is disclosed herein. The core preferably has a pga compression less than 30.
Callaway Golf Company

Multi-layer core golf ball

Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least one intermediate core layer formed from a metallic, composite, or inorganic/organic hybrid composition..
Acushnet Company

Low compression golf balls containing cores made of plasticized thermoplastic compositions

Low compression multi-piece golf balls having a solid core comprising at least one layer made of a plasticized thermoplastic composition are provided. Preferably, the ball has a compression of less than 60 and more preferably less than 50.
Acushnet Company

Golf club head with structural columns

A golf club head having at least one structural column is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Golf balls having a multi-layered core with a thermoset rubber center

Golf balls having a multi-layered solid core and multi-layered cover are provided. The center of the core is made of a thermoset rubber material and preferably has a positive hardness gradient.
Acushnet Company

Golf ball with encapsulated rfid tag

The golf ball includes an rfid tag, a substrate, a conductive ink, a single golf core material and a dimpled cover. The rfid tag includes an integrated circuit and an antenna.
Edge Technology

Golf ball tracking system

The invention discloses a golf ball tracking system, which includes a distributed sensor and processor system adapted to simultaneously track the trajectories of multiple golf balls hit by one of more golfers. The system is adapted to keep track of the location of the golfers to enable the allocation of shots to the correct golfer.
Alphawave Golf (pty) Ltd

Cart system for holding and retaining portable ball hoppers

A cart assembly that is designed to hold and transport one or more ball hoppers. The ball hoppers have baskets that are supported by legs.

Alignment aid

The invention relates to an alignment aid (10) for golfers which provides a reference means for ensuring optimal positioning of the feet, relative both to each other and a golf ball, for a given club selection. The alignment aid comprises a foot-positioning rail (12); a ball-positioning rail (14); and linking arms (16a, 16b, 18a, 18b).

Goldenyears tee

The goldenyears tee is designed for golfers in their golden years who have difficulty leaning, bending or squatting to tee up a golf ball. This golf tee is applicable for all golfers who have physical limitations as well as healthy golfers who desire not to, or cannot insert a conventional golf tee in the ground because of ground conditions.

Multi-layer golf ball

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet Company

Golf balls having multi-layered core with thermoplastic outer layer

Multi-piece golf balls containing a multi-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, an intermediate core layer, and a surrounding outer core layer.
Acushnet Company

Golf ball layers including mono (meth)acrylate esters

The present invention relates to the use of a mono (meth)acrylate ester in a golf ball layer. The mono (meth)acrylate ester may be added to one or more portions of a golf ball including a core, intermediate, or cover layer.
Acushnet Company

Golf ball layers including a fatty acid (meth)acrylic acid salt

The present invention relates to the use of a fatty acid (meth)acrylic acid salt in a golf ball layer. The fatty acid (meth)acrylic acid salt may be added to one or more portions of a golf ball including a core, intermediate, or cover layer.
Acushnet Company

Method and simulated golf

Described herein are methods and apparatuses for simulating golf. For example, described herein is a system for simulating a golf game.
Full-swing Golf Holdings, Inc.

Golf ball dispenser

A system and method for dispensing golf balls is disclosed. Balls are received into a cylindrical tube, and are supported on a shelf that extends inwardly at a dimension that retains the balls when they are stacked vertically.

Golf ball dimples exhibiting two distinct hardness regions derived from a single cover layer and methods of making same

The present invention is directed to a golf ball having a cover in which the dimples have two distinct hardness regions. The cover of the present invention is formed from a castable formulation including at least one prepolymer that incorporates some degree of unsaturation in the backbone of the polymer, at least one curative, and at least one free radical initiator.
Acushnet Company

Golf ball

An object of the present invention is to provide a golf ball having excellent flying performance on driver shots. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing: (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, (d) an unsaturated fatty acid and/or a metal salt thereof (excluding an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof), and (e) a saturated fatty acid and/or a metal salt thereof, provided that the rubber composition further contains (f) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent..
Dunlop Sports Co. Ltd.

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Golf ball

Golf balls including at least one modified dimple group are disclosed. The modified dimple group comprises one or more modified dimples forming an axially symmetric pattern about a correction area centroid located on an axis of symmetry at a latitude greater than 0°, where 0° represents the hemispherical pole and 90° represents the equator.
Acushnet Company

Golf ball with rfid inlay between a split core

A compressible core with an rfid tag is described. The compressible core comprises an rfid integrated circuit, and an inlay material sandwiched between a top hemisphere and a bottom hemisphere.
Edge Technology

Golf balls and methods to manufacture golf balls

Embodiments of golf balls and methods to manufacture golf balls are generally described herein. In one example, a golf ball may include a face regions and a plurality of edge regions.
Parsons Xtreme Golf, Llc

. .

Acushnet Company

. .

Dunlop Sports Co. Ltd.

. .

Golf ball manufacturing method

A method of manufacturing golf balls having a core and a cover of at least one layer encasing the core includes the steps of producing a core by molding and vulcanizing a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid and/or a metal salt thereof, and (c) an organic peroxide; and heat-treating the core for 1 to 24 hours at between 175 and 300° c. Golf balls which undergo little energy loss and have a high initial velocity can be obtained by this method..
Bridgestone Corporation

Golf ball

In a golf ball having a core and a cover of one or a plurality of layers that encases the core, the core or at least one layer of the cover is formed of a resin composition which contains from 5 to 250 parts by weight of a mechanoluminescent material that receives mechanical energy and luminesces per 100 parts by weight of a base material which is a rubber material or a resin material. This golf ball has an excellent visibility in that, even under dark conditions, the ball impact site can be clearly confirmed visually at the time of impact.
Bridgestone Sports Co., Ltd.

Golf ball with built-in ic chip

A golf ball includes: a radio frequency identification (rfid) tag including an ic chip and an antenna; a protection layer surrounding the outer periphery of the rfid tag; a relaxation layer surrounding the outer periphery of the protection layer; a core surrounding the outer periphery of the relaxation layer; and a cover surrounding the outer periphery of the core. The curing temperature of the protection layer is 60° c.
Bridgestone Sports Co., Ltd.

Multi-layer golf ball

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet Company

Medium gradient multi-piece urethane covered golf ball

.. .

Multi-layered cores with thermoplastic and thermoset layers for golf balls

Multi-piece golf balls containing a multi-layered core structure having layers with different hardness gradients and specific gravities are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity with metal material preferably dispersed in a first thermoset composition.
Acushnet Company

Golf ball

In a golf ball having a core and a cover of at least one layer, the core and/or at least one layer of the cover are formed of a resin composition that includes (a) 100 parts by weight of a thermoplastic resin, and (b) 1 to 30 parts by weight of a compound having a fluorene skeleton, or a derivative thereof. This resin composition for golf balls has an improved injection-moldability and thus enables the ball to achieve both a reduced spin rate and a good durability (scuff resistance)..
Bridgestone Sports Co., Ltd.

Rubber composition for golf ball, and golf ball

A rubber composition for golf balls includes (a) a base rubber, (b) two different metal salts of α,β-unsaturated carboxylic acids having 3 to 8 carbon atoms, (c) a metal salt in which at least one bonding site is a fatty acid of 9 or more carbon atoms, and (d) a crosslinking initiator. Letting component (b) include (b-1) an unsaturated metal carboxylate in a high compounding weight and (b-2) an unsaturated metal carboxylate in a low compounding weight, the ratio (b-2)/(b-1) is from 4 to 20 wt % and the ratio (b-2)/(c) is from 20 to 115 wt %.
Bridgestone Sports Co., Ltd.

Golf ball

In a golf ball having a core and a cover of at least one layer encasing the core, the core is a product molded under heat from a rubber composition which includes (a) a base rubber, (b) an unsaturated carboxylic acid and/or a metal salt thereof, and (c) an organic peroxide. Letting the content of component (b) in the rubber composition per 100 parts by weight of component (a) be x parts by weight and the concentration of volatile substances from component (b) within the core be a wt %, the value a/x is 0.0123 or less.
Bridgestone Corporation

Golf ball

Rs≧−2.5*so+273   (3). .

Positioning system and positioning method

A positioning system includes a golf ball and a mobile terminal. The golf ball includes a battery and a transmitter configured to operate with electric power supplied from the battery and transmit a radio signal to outside of the golf ball.
Bridgestone Sports Co., Ltd.

Bridgestone Sports Co., Ltd.

. .

Method and molding dual cores for a golf ball

A method and apparatus for forming a core for a dual core golf ball is disclosed herein. A headblock is pressed against a mold tool wherein a hemispherical protrusion of the headblock compresses a slug within a first hemispherical cavity to form a first half shell outer core component.
Callaway Golf Company

Golf ball marker

A golf ball marker for applying chalk to a golf ball. The golf ball marker includes a housing having two space ends and in which one end is dimensioned to support a golf ball.

Adjustable golf putter head having teeth

In a golf club head assembly a body member has a top-forward angled front face, the face comprising a plurality of generally forward-facing teeth. The golf club head assembly further comprises a loft angle adjustment mechanism attached to the body member for adjusting a loft angle of the face.

Metallized and masked golf ball and method

The present invention is directed to a metallized golf ball possessing a masked section and methods for achieving a metallized golf ball possessing a masked section. The invention provides a golf ball masking stand, which effectively masks a portion of a golf ball, allowing coatings to be applied to the golf ball, while preventing coating of the masked section.

System and coating golf balls

In a method and related system of the invention, each golf ball component is progressed while being coated, without contacting another surface until after curing, and without the margin for error created in prior systems/methods using physical or air stream up-take supports. In one embodiment, a method of the invention comprises the steps of: progressing a golf ball component within an enclosed chamber for a controlled duration of time; at least partially covering the golf ball component with a coating material while the ball is progressed within the enclosed chamber; and at least partially curing the coating material on golf ball component in the chamber.
Acushnet Company

Golf balls having a multi-layered cover with a thermoplastic inner cover layer

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided. In one version, a six-piece ball having a three-layered core and three-layered cover is formed.
Acushnet Company

Golf ball

The core has an initial velocity v0 of at least 72.0 m/s and up to 75.0 m/s.. .

Golf ball

A golf ball 2 includes a spherical core 4, an inner mid layer 6 positioned outside the core 4, an outer mid layer 8 positioned outside the inner mid layer 6, a reinforcing layer 10 positioned outside the outer mid layer 8, and a cover 12 positioned outside the reinforcing layer 10. When distances (%) from a central point of the core 4 to nine points and jis-c hardnesses at the nine points, which nine points are obtained by dividing a region from the central point of the core 4 to a surface of the core 4 at intervals of 12.5% of a radius of the core 4, are plotted in a graph, r2 of a linear approximation curve obtained by a least-square method is equal to or greater than 0.95..
Dunlop Sports Co. Ltd.

Golf club heads

Described are embodiments of golf club heads having an internal cavity and features that cause the golf club head to have an improved acoustic performance when striking a golf ball. Some embodiments include one or more weight tracks and/or weight ports formed in the sole for receiving adjustable weights.
Taylor Made Golf Company, Inc.

Golf balls having at least one layer formed from a plasticized acid copolymer composition

The present invention is directed to multi-layer golf balls including a layer formed from a relatively soft or low modulus hnp composition and a layer formed from a relatively hard or high modulus hnp composition. Optionally, the soft (or low modulus) hnp composition and/or the hard (or high modulus) hnp composition is plasticized or is replaced with a different plasticized acid copolymer composition..
Acushnet Company

Telescopic golf ball picker upper

The current invention is a golf ball retriever that enables an individual to pick up a golf ball without requiring the user to bend over. The golf ball retriever includes an extendable rod with a cup configured to receive a golf ball disposed at a distal end of the rod.

Golf ball

An object of the present invention is to provide a golf ball showing a low spin rate on driver shots and a high spin rate on approach shots. The present invention provides a golf ball having a low hardness part having a hardness in a range from 5 to 40 in shore d hardness or a lowest hardness point in a core hardness distribution in a region located at a distance from 36.0% to 65.0% of a radius of the golf ball from a center point of the golf ball..
Dunlop Sports Co. Ltd.

Dunlop Sports Co. Ltd.

. .

Golf ball marker clip apparatus

A golf ball marker clip apparatus includes a golf ball marker, a base, and a clip formed to the base and configured to snappedly receive the golf ball marker. The clip bounds and defines a hold corresponding to the golf ball marker..

Ball pickup aid putter

Various embodiments of a golf putter having a putter head attached to an elongated shaft with the putter head defining a retention cavity configured to engage and retain a golf ball therein are disclosed. The retention cavity is formed along the back region of the putter head and is configured to have a diameter that is slightly less than the diameter of a regulation sized golf ball such that the golf ball is retained therein when urged into the confines of the retention cavity by the putter head.
Karsten Manufacturing Corporation

Multi-layer golf ball

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet Company

Golf ball

An object of the present invention is to provide a golf ball having excellent resilience performance. The present invention provides a golf ball having a spherical core and at least one cover layer, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, and (c) a crosslinking initiator, provided that the rubber composition further contains (d) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent, wherein (c) the crosslinking initiator includes a peroxy ketal represented by the formula (1), and substituents represented by r1 and r2 have a bond dissociation energy of 435 kj/mol or more..
Dunlop Sports Co. Ltd.

Golf ball

An object of the present invention is to provide a golf ball having excellent abrasion resistance and spin performance on driver shots. The present invention provides a golf ball having a spherical core and a cover covering the spherical core, wherein the cover contains a polyurethane, wherein the polyurethane comprises, as a constituent component, (a) a polyisocyanate component and (b) a polyol component containing (b1) a polyrotaxane, and wherein (b1) the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —o—c3h6—o— group..
Dunlop Sports Co. Ltd.

Golf ball

Measuring strain: 0.1%.. .

Golf putting training aid

Ejector devices and methods for golf putting training are provided. An ejector device can be configured for placement in a regulation golf hole.
Smart Golf Technologies, Inc.

Multi-layer golf ball

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet Company

Multi-piece solid golf ball

In a multi-piece solid golf ball having a core, an envelope layer encasing the core, an intermediate layer encasing the envelope layer, and an outermost layer encasing the intermediate layer, the envelope layer-encased sphere, the intermediate layer-encased sphere and the ball have surface hardnesses which satisfy a specific relationship, the intermediate layer and the cover have thicknesses which satisfy a specific relationship, and the core has a hardness profile in which the hardnesses at the core surface, core center, a position 5 mm from the core center, and a position midway between the core surface and center satisfy specific relationships. This golf ball satisfies at a high level the flight and control performances desired for use by professional golfers and skilled amateurs.
Bridgestone Sports Co., Ltd.

Stiff core golf ball and methods of making same

A golf ball is provided that has a spherical core exhibiting a stiffness from 400 mpa to 200 gpa. The stiffness of the core may be controlled by adjusting the materials of construction and the ratio of the materials.
Oncore Golf Technology, Inc.

Golf balls having layers made of silicone elastomer and polyurethane blends

Multi-layered golf balls having at least one layer made from silicone (polysiloxane) elastomers; silicone (polysiloxane) elastomer/polyurethane blends; polycarbonate-polysiloxane blends and copolymers; and polycarbonate-polysiloxane/polyurethane blends are provided. For example, three-piece, four-piece, and five-piece golf balls containing different core and cover structures can be made.
Acushnet Company

Golf swing teaching device

A golf swing teaching device to interpret a golf swing comprising a golf club, where the golf club includes a handle, a shaft and a head; a laser attached to the golf club, where the laser directs a beam parallel to the shaft of the golf club; a reflective indicator mat, where the reflective indicator mat extends between a first end and a second end; a rest toward the first end, where the rest positions a golf ball on the reflective indicator mat; an ideal swing line along a central portion of the reflective indicator mat, where the ideal swing line extends from the first end to the second end; and a plurality of sensors along the reflective indicator mat, where the plurality of sensors detect a path of the beam over the reflective indicator mat and deviation of the beam from the ideal swing line.. .

Golf putter with range of feel characteristics

A golf putter head includes a back body and a face body having a golf ball contact surface. The face body includes an entirety of the contact surface, with the back body and the face body having surfaces without contact across a gap defined by the surfaces.
Sentio Golf, Inc.

Golf club with a striking face having improved characteristic time values

A ball striking face for a golf driver, fairway wood and hybrid type golf club head having a central impact area with a average thickness and additional multiple distinct areas outside the central impact area with other average face thicknesses for the improved transfer of energy to a golf ball for additional distance without any additional effort by the golfer. The striking face provides a transfer of energy at the central impact area which does not exceed ct values of 257 u sec.

Golf balls having volumetric equivalence on opposing hemispheres and symmetric flight performance and methods of making same

Golf balls according to the present invention achieve flight symmetry and overall satisfactory flight performance due to a dimple surface volume ratio that is equivalent between opposing hemispheres despite the use of different dimple geometries, different dimple arrangements, and/or different dimple counts on the opposing hemispheres.. .
Acushnet Company

Method for forming golf ball and mold therefor

A method for forming a golf ball provides a core member comprising a core of a golf ball into a cavity of a mold so that the core member is supported by a movable holding pin disposed in the mold; forming a layer outside the core member by injecting a material of the layer into the cavity; and retracting the pin from the cavity into the mold during the material injection so that a portion projecting from a surface of the layer is formed by a tip of the pin, the projecting portion having a site area of at least 0.2% in relation to an entire area of the tip of the pin and having a height of at least 0.2 mm. This method can be implemented by controlling the retraction of the pin, or alternatively by using the pin having a predetermined indentation portion on the tip..

Golf putting correction device

Disclosed is a golf putting correction device. The golf putting correction device of the present disclosure includes: a body formed long in one direction so as to form a straight runway on which a golf ball rolls, and having a marked line formed along the center of the straight runway; and a guide formed above the straight runway, and having a through-hole formed to be parallel with the marked line, wherein a putting posture is corrected by a putting practice while observing the marked line through the through-hole.

Club heads for adjusting vertical spin of a golf ball and methods of providing the same

Some embodiments include a club head for adjusting vertical spin of a golf ball. Other embodiments of related systems and methods are also disclosed..

Golf balls having a foam inner core with thermal barrier

Golf balls having a multi-layered core made of a foamed composition are provided. The core assembly preferably includes a foam inner core (center) and surrounding outer core layer.

Multi-layer core golf ball

Golf ball incorporating core consisting of: a solid inner core layer consisting of a peroxide cured polybutadiene rubber composition and having a diameter of 1.25 inches or less and a center shore c hardness (hcenter) of 50 or less; and an outer core layer consisting of a thermoplastic composition tc as defined herein and having a thickness of 0.400 inches or greater and an outer surface shore c hardness (houter surface) of 70 or greater, wherein houter surface>hcenter, and houter surface−hcenter≧40. The peroxide cured polybutadiene rubber composition may comprise a reaction product of polybutadiene and a sufficient amount of peroxide to form the solid inner layer having the center shore c hardness (hcenter) of 50 or less.

Golf ball having dimples with concentric or non-concentric grooves

The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the alteration of the dimple surfaces. In particular, the present invention relates to a golf ball that includes at least a portion of its dimples having circular perimeters and dimple profiles having a concentric groove or a non-concentric groove on the surface of the dimple.

Golf clubs and golf club heads having a sensor

A golf club having a sensor that is removably connected at one or more positions of the golf club where the sensor comprises an inertial measurement unit including an accelerometer capable of measuring linear accelerations in three orthogonal axes and a gyroscope capable of measuring an angular rate of rotation around the same axes. The sensor may further comprise a processor which may perform instructions to detect the impact of the golf club with a golf ball and determine the start of the golf swing without any additional input from the user.

Golf clubs and golf club heads having a sensor

A golf club having a sensor that is removably connected at one or more positions of the golf club where the sensor comprises an inertial measurement unit including an accelerometer capable of measuring linear accelerations in three orthogonal axes and a gyroscope capable of measuring an angular rate of rotation around the same axes. The sensor may further comprise a processor which may perform instructions to detect the impact of the golf club with a golf ball and determine the start of the golf swing without any additional input from the user.

Golf clubs and golf club heads having a sensor

A golf club having a sensor that is removably connected at one or more positions of the golf club where the sensor comprises an inertial measurement unit including an accelerometer capable of measuring linear accelerations in three orthogonal axes and a gyroscope capable of measuring an angular rate of rotation around the same axes. The sensor may further comprise a processor which may perform instructions to detect the impact of the golf club with a golf ball and determine the start of the golf swing without any additional input from the user.

Golf-ball compression measurement

A hand-held compression-tester for golf balls applies a biasing force to the golf-ball, loads it, and then releases the load so that only the biasing force remains. Based on the evolution of a loading curve during these intervals, the compression-tester estimates a compression value..
Golftek, Llc

Biopeg tethertee

This invention relates to the golf industry, it is comprised of 2 tees connected with a line that tethers the 2 tees together which minimizes the possibility of loss. The invention is used for teeing up, or elevating the golf ball from the ground when the rules allow so.

Golf club heads with protective layer and methods of manufacturing the golf club heads

Embodiments of golf club heads and methods to manufacture such a golf club heads are generally described herein. In some embodiments, the golf club head may include a ball-striking face and a protective aluminum oxide layer coupled to the ball-striking face of the golf club head.
Karsten Manufacturing Corporation

Golf ball

A golf ball 2 includes a spherical core 4, an inner mid layer 6, an outer mid layer 8, a reinforcing layer 10, and a cover 12. When distances (%) from a central point of the core 4 to nine points and jis-c hardnesses at the nine points, which nine points are obtained by dividing a region from the central point of the core 4 to a surface of the core 4 at intervals of 12.5% of a radius of the core 4, are plotted in a graph, r2 of a linear approximation curve obtained by a least-square method is equal to or greater than 0.95.
Dunlop Sports Co. Ltd.

Portable golf mat

A mat for practicing golf shots, including an upper mat and a lower mat. The lower mat is larger than the upper mat.

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.

Methods for making golf balls having heterogeneous layers and resulting balls

Methods for making multi-piece golf balls having an outer cover, intermediate, or other layer comprising a heterogeneous composition are provided. The heterogeneous composition comprises a mixture of compounds a and b.

Golf ball having surface divided by line segments of great circles and small circles

A surface of a sphere is divided by using not only great circles but also small circles, forming a spherical polyhedron. The spherical polyhedron includes two spherical regular pentagons, each having a center at the pole, ten spherical isosceles triangles near the pole, ten spherical pentagons near the equator, and ten other spherical isosceles triangles near the equator.

Methods for making golf ball components using three-dimensional additive manufacturing systems

Methods for making golf balls and golf ball components using three-dimensional (3d) additive manufacturing systems are provided. The golf ball includes at least one three-dimensional piece.
Acushnet Company

Golf balls having foam inner core and themoplastic outer core

Multi-piece golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Golf balls having dual-layered cores with metal-containing centers and dual-layered covers

Multi-piece golf balls containing a dual-layered core and dual-layered cover are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer.
Acushnet Company

Golf balls having dual-layered cores with metal-containing centers

Multi-piece golf balls containing a dual-layered core are provided. The ball further includes single or multi-layered covers.
Acushnet Company

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Golf club head with flexure

A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
Acushnet Company

Metal wood club

A golf club head is provided having a body and a face, with a slot in a perimeter region of the body of the club head adjacent the face. The slot increases the flex of the hitting surface on impact with a golf ball, thereby increasing the speed with which the ball rebounds off the hitting face and increases the overall distance the ball is hit.
Acushnet Company

Multi-layer golf ball

Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet Company

Golf ball with excellent interlayer adhesion between adjacent differing layers

Golf ball and method for making it, comprising a first layer that comprises a first polymeric composition and is surrounded by and adjacent to a second layer comprising a second polymeric composition different than the first polymeric composition; with one of these layers further comprising at least one silane-containing adhesion promoter such as organosilanes and/or organosiloxanes throughout in an amount of from about 0.1 wt. % to about 5.0 wt.
Acushnet Company

Golf ball

The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, wherein the core is formed of a material molded under heat from a rubber composition containing (a) a base rubber, (b) an organic peroxide, and (c) water and/or a metal monocarboxylate, and has a hysteresis loss of 50% or less when compressed at a load cell speed of 500 mm/min and under a constant load of 5,000 n.. .
Bridgestone Sports Co., Ltd.

Golf ball

The invention provides a golf ball having a core and a cover of one layer or a plurality of layers, the core being formed of a material molded under heat from a rubber composition which includes (a) a base rubber, (b) an organic peroxide, and (c) water and/or a metal monocarboxylate. The product p×e of the difference p (mol/m3) in crosslink density between the core surface and the core center, as measured based on a toluene swelling test, multiplied by the deflection e (mm) of the core when compressed under a final load of 1,275 n (130 kgf) from an initial load state of 98 n (10 kgf) is at least 28×102 mol/m3·mm..
Bridgestone Sports Co., Ltd.

Virtual golf system and methods

Virtual golf system for playing golf, comprising a plurality of trackable golf balls, wherein each golf ball comprises transmitting means for broadcasting electromagnetic beacon signals for detecting a position of the golf ball, a position determination unit comprising three receiving antenna's arranged for receiving beacon signals broadcasted by any of said plurality of trackable golf balls, and wherein said position determination unit is arranged to determine a position of said golf ball on a driving range based on time differences of a broadcasted beacon signal received by said receiving antenna's. A plurality of trackable golf balls and a plurality of players may be active at the same time.

Dual core golf ball having positive-hardness-gradient thermoplastic inner core and positive-hardness-gradient thermoset outer core layer

A golf ball comprising an inner core layer including a thermoplastic material and having a geometric center hardness less than the surface hardness to define a positive hardness gradient. An outer core layer is formed over the inner core.
Acushnet Company

Golf towel

A golf towel including a towel body, the towel body having both a first abrasive portion and a second abrasive portion for cleaning the dimples on a golf ball and the grooves in a golf club head, respectively. The first abrasive portion includes a plurality of nubs projecting outwardly therefrom and corresponding to dimples on a golf ball.

Golf ball liner

Provided is a golf ball liner for rapidly and exactly printing, on a golf ball, a putting line or a mark indicating the owner of the ball. The golf ball liner includes a housing having an inside space in which a golf ball is accommodated, a moving part mounted on the housing and configured to move toward or away from the golf ball, a supporter mounted in an inside space of the moving part, a stamp supported by the supporter and configured to move with the moving part and the supporter to print a putting line or mark on the golf ball, and a first detachable part formed on each of the stamp and the supporter and configured to couple or separate the stamp to or from the supporter..

Golf ball incorporating at least three adjacent ionomeric and/or hnp-based layers having multiple related property gradients there between

Golf ball having at least three layers comprising ionomeric and/or hnp compositions, wherein for each two adjacent layers, a relationship is established between a ratio of the volumes of the two adjacent layers and a ratio of the percent neutralizations of those two layers such that the volumes and % neutralizations of all layers are interrelated and interdependent to produce unique and desirable playing characteristics. In one embodiment, a golf ball of the invention has t layers, wherein t≧3 and each of t layers has a different volume “v” and comprises an ionomeric and/or hnp composition having a different % neutralization “n”; and wherein each of n inner layers of the t layers (n<t) has an adjacent surrounding layer n+1 such that a volume vn and a % neutralization nn of each inner layer and a volume v(n+1) and % neutralization n(n+1) of each adjacent surrounding layer n+1 satisfy the relationship (v(n+1)−vn)/v(n+1)≦(nn−n(n+1))/n(n+1)..
Acushnet Company

Golf ball incorporating at least three adjacent ionomeric and/or hnp-based layers having multiple related property gradients there between

Golf ball having at least three layers comprising an ionomeric and/or hnp composition, wherein for each two adjacent layers, a relationship is established between a ratio of the volumes of the two adjacent layers and a ratio of the percent neutralizations of those two layers such that the volumes and % neutralizations of all layers are interrelated and interdependent to produce unique and desirable playing characteristics. In one embodiment, each of t layers, wherein t≧3, has a different volume “v” and comprises an ionomeric/hnp composition having a different % neutralization “n”; and wherein each of n inner layers of the t layers (n<t) has an adjacent surrounding layer n+1 such that a volume vn and a % neutralization nn of each inner layer and a volume v(n+1) and % neutralization n(n+1) of each adjacent surrounding layer n+1 satisfy the relationship (v(n+1)−vn)/v(n+1)≦(n(n+1)−nn)/nn..
Acushnet Company

Golf ball incorporating at least three adjacent ionomeric and/or hnp-based layers having multiple related property gradients there between

Golf ball having at least three layers comprising ionomeric and/or hnp compositions, wherein for each two adjacent layers, a relationship is established between a ratio of the volumes of the two adjacent layers and a ratio of the percent neutralizations of those two layers such that the volumes and % neutralizations of all layers are interrelated and interdependent to produce unique and desirable playing characteristics. In one embodiment, a golf ball of the invention has t layers, wherein t≧3 and each of t layers has a different volume “v” and comprises an ionomeric and/or hnp composition having a different % neutralization “n”.
Acushnet Company

Golf balls having a foam center with regions of different hardness

Golf balls having a multi-layered core made of a foamed composition are provided. The core preferably has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer.
Acushnet Company

Dual core golf ball having positive-hardness-gradient thermoplastic inner core and positive-hardness-gradient thermoset outer core layer

A golf ball includes a thermoplastic inner core and a thermoset outer core layer. The inner core has a surface hardness of about 40 to 80 shore c and a center hardness of about 30 to 75 shore c, the center hardness being less than the surface hardness to define a first positive hardness gradient.
Acushnet Company

Medium gradient dual core golf ball

A golf ball includes an inner core layer having a first surface hardness and a geometric center hardness. The center hardness is less than the first surface hardness to define a first positive hardness gradient of about 1 to 12 shore c.
Acushnet Company

Three-cover-layer golf ball having transparent or plasticized polyamide intermediate layer

A golf ball includes a core and a three-layer cover disposed adjacent the core. The three-layer cover includes an inner cover, an intermediate cover, and an outer cover.
Acushnet Company

Multi-layer cover golf ball having a high acid casing layer

A golf ball includes a single core having an outer surface and a geometric center. The core is formed from a substantially homogenous rubber composition.
Acushnet Company

Golf ball material and golf ball

A golf ball material includes (a) one or more resin ingredient selected from the group consisting of olefin-unsaturated carboxylic acid random copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester random copolymers, and metal ion neutralization products of these copolymers; (d) an amino compound having at least 2 amino groups per molecule; (b) one or more resin ingredient selected from the group consisting of polyethylene, polyesters and polyamide elastomers; and (c) an agent for compatibilizing components (a) and (b). The compatibilizing agent (c) includes: (c-i) two different types of base polymer selected from a specific group, (c-ii) a hydrogenated diene polymer having at least one type of functional moiety selected from a specific group of moieties, and (c-iii) an olefinic polymer having at least one type of functional moiety selected from a specific group of moieties..
Bridgestone Sports Co., Ltd.

Multi-layer golf ball

Multi-layer golf balls having a hard, high compression center, a relatively soft intermediate layer, and a stiff outer cover layer, are provided. The outer surface hardness of the intermediate layer is less than that of both the center and the outer cover layer..
Acushnet Company

Golf balls having foam center containing clay particulate

Multi-piece golf balls having a solid core made of a foamed composition and a cover are provided. Preferably, the core is dual-layered having has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer.
Acushnet Company

Determination of spin parameters of a sports ball

A method of determining spin parameters of a sports ball, such as spin axis and rotation velocity of a golf ball. The spin axis is determined solely from the trajectory of the flying ball, and the rotational velocity is determined from a frequency analysis of a signal provided by a radar, which signal comprises spectrum traces positioned equidistantly in frequency, which frequency distance relates to the spin velocity..
Trackman A/s

Multi-layer core golf ball

Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises at least three layers, including at least one thermoset layer and at least one thermoplastic layer.
Acushnet Company

Automatic golf ball lifting device

An automatic golf ball lifting device capable of lifting a golf ball up to ground level comprises a first cylinder having dimension of a standard golf hole, and a second cylinder fit into the first cylinder where inside second cylinder there installed mechanisms for lifting the golf ball up to the ground level. The mechanisms for lifting the golf ball up in the second cylinder comprises: a golf ball plate; a load cell, installed underneath said golf ball plate at the uppermost end of a lifting set; a lifting set functions to move the golf ball plate up upon being actuated through a preset pcb, where at lower end of the lifting set is connected to a ball screw set and the uppermost end connected to the load cell; a ball screw set having screw which can turn clockwise or anticlockwise to allow lifting set to move up or down to a preset level; a motor functions to drive ball screw set through a bevel gear; a bevel gear rotates by motor and functions to turn the screw; a pcb electronically controls operation of all the components in the second cylinder; battery supplies electrical power to motor.

Golf ball incorporating at least one non-isocyanate-containing polyurethane layer

A golf ball comprising at least one layer consisting of a non-isocyanate-containing polyurethane composition comprising the reaction product of: at least one amine or polyamine, having an average functionality of 2.0 or greater, and at least one cyclo-carbonate. The amine may be selected for example from the group consisting of: ethylenediamine, hexamethylenediamine, or tris(2-aimnoethyl)amine, or blends thereof; and the polyamine may be selected for example from the group consisting of polyoxypropylene diamines, polyoxypropylene triamines, and combinations thereof.
Acushnet Company

Golf balls having core structures with iron-containing centers

Multi-piece golf balls having a solid core and cover are provided. The ball contains a small, heavy inner core and surrounding outer core layer.
Acushnet Company

Dimple patterns for golf balls

The present invention provides dimple patterns with tetrahedral tilings where the dimples are arranged in multiple copies of a first domain and a second domain, and the dimple pattern in the first domain is different than the dimple pattern in the second domain. A majority of dimples are provided having a first plan shape and a first profile shape, and at least one of the domains has a sub-pattern of nearest neighbor dimples having either a plan shape or a dimple profile shape that is different than the majority of dimples..
Acushnet Company

Acushnet Company

. .

Method for configuring the face of a putter

The present invention is a method of forming the ball striking face of a putter type golf club to control the amount of force applied to a golf ball for a given stroke in order that golf ball struck away from the center of percussion of the face travels essentially the same distance as golf balls struck precisely at the center of percussion.. .

Golf ball scoop

The present invention relates to a ball scoop device comprising a hollow transport shaft connected by a lower angled connection to a ball scoop at the lower end of the transport shaft and connected by an upper angled connection at the upper end of the transport shaft to a ball retainer and a method for using the same.. .

Golf ball having non-planar parting line with non-circular dimples

(0.15)Σlarcs≦Σllines≦(0.50)Σlarcs.. .

Systems and methods for fitting golf equipment

A golf equipment fitting system that uses advanced technology to not only objectively identify the optimum equipment for the golfer, but to also identify and help correct swing flaws so that the golfer can achieve optimum performance on the golf course. Thus, in one embodiment, golf fitting includes collecting data related to the golfer's swing and determining if the golfer's swing technique should be modified based at least in part on the collected swing data.
Max Out Golf, Llc

Target golf game system

A golf target system featuring a hitting bay including a golf ball launch monitor system, a playing area including a plurality of illuminated panels, and a controller in communication with the golf ball launch monitor system and the plurality of illuminated panels, wherein the controller selectively controls the illumination of the plurality of panels to define one or more visual targets observable from the hitting bay and receives information from the golf ball launch monitor system such that, when a golf ball is hit from the hitting bay towards the playing area, the golf ball launch monitor system communicates data to the controller sufficient for the controller to identify a landing position of the golf ball with respect to the one or more visual targets.. .

Low compression golf ball

Disclosed herein are two-layer and three-layer, low compression golf balls including a low compression single- or dual-layer rubber core and a single cover layer.. .
Acushnet Company

Golf club head with flexure

A golf club head including a crown, a sole, a hosel, a face, a flexure, and a weight member. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
Acushnet Company

Golf ball and manufacture

In a golf ball having a core and a cover of one or more layer encasing the core, an outermost layer of the cover is molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof, and the surface of the cover is treated with a polyisocyanate compound that is free of organic solvent. A method of manufacturing the golf ball is also described.
Bridgestone Sports Co., Ltd.

Multi-layered cores for golf balls based on ionomers

Multi-piece golf balls having a solid core of at least one layer and cover of at least one layer are provided. Thermoplastic ethylene acid copolymer ionomer compositions are used to form the core layers.
Acushnet Company

Golf balls having non-uniform core structures with metal-containing centers

Multi-piece golf balls having a solid core and cover are provided. The ball contains a small, heavy inner core and surrounding outer core layer.
Acushnet Company

Golf ball

Golf ball having a core and a cover of one or more layers, the core being formed of a material molded under heat from a rubber composition including a base rubber, an organic peroxide, and water and/or a metal monocarboxylate. Defining the tan δ slope as (tan δ10−tan δ1)/(10%−1%), where tan δ1 and tan δ10 are the loss tangents at dynamic strains of, respectively, 1% and 10% when the loss tangents of the core center and the core surface are measured at −12° c.
Bridgestone Sports Co., Ltd.

Dimple patterns for golf balls

The present invention provides dimple patterns with octahedral tilings where the dimples are arranged in multiple copies of a first domain and a second domain, and the dimple pattern in the first domain is different than the dimple pattern in the second domain. A majority of dimples are provided having a first plan shape and a first profile shape, and at least one of the domains has a sub-pattern of nearest neighbor dimples having either a plan shape or a profile shape that is different than the majority of dimples..
Acushnet Company

Dimple patterns for golf balls

The present invention provides dimple patterns with icosahedral tilings where the dimples are arranged in multiple copies of a first domain and a second domain, and the dimple pattern in the first domain is different than the dimple pattern in the second domain. A majority of dimples are provided having a first plan shape and a first profile shape, and at least one of the domains has a sub-pattern of nearest neighbor dimples having either a plan shape or a dimple profile shape that is different than the majority of dimples..
Acushnet Company

Golf club head having stress-reducing features

A golf club head comprising a body and a plurality of stiffening members is disclosed herein. The body comprises a face section, a sole section, and a crown section, and defines a hollow interior.
The Rural Development Administration, Republic Of Korea

Short game golf trainer system

A short game golf trainer system in three releasably coupled parts: a horizontal base, a vertical support, and a cantilever horizontal top plate. The base has anchoring features, such as holes for receiving spikes, for anchoring the base to a putting green.

System, apparatus, and using mobile sporting goods

Systems, apparatus, and methods for using mobile sporting goods. In one aspect, the system permits a sporting enthusiast to track the location of a mobile sporting good, such as a golf ball, relative to a target, such as a target on a driving range, and correlate that location to a simulated location on a simulated golf hole..

Golf simulator, and golf simulation method

A golf simulator comprises a photosensor unit, an image input unit, a movement information calculation unit, a spin information calculation unit and a flight trajectory calculation unit. The photosensor unit detects a moving path of a golf ball by using a plurality of photosensors, the image input unit inputs movement images of the golf ball, the movement information calculation unit calculates a moving direction and speed of the golf ball from information acquired from the photosensor unit, the spin information calculation unit calculates a spin amount of the golf ball from the inputted images, and the flight trajectory calculation unit calculates a flight trajectory of the golf ball by using movement information and spin information.
Rd-tek Co., Ltd

Putter-type golf club head

Putter-type golf club head that, when oriented in a reference position, includes a striking wall extending in the heel to toe direction and defines a substantially planar striking face for hitting a golf ball. A central elongate member is in communication with, and extends rearward from, the striking wall.
Dunlop Sports Co. Ltd.

Low compression golf balls having layers made from plasticized thermoplastic materials

Low compression, multi-piece golf balls containing a solid core and two or three-layered cover assemblies are provided. Preferably, the ball has a compression of less than 60 and more preferably less than 50.
Acushnet Company

Three-layer-core golf ball having highly-neutralized polymer outer core layer

A golf ball includes an inner core layer formed from a thermoset rubber composition. The inner core layer has a first outer surface shore d hardness and an outer diameter of about 0.8 to 1.40 inches.
Acushnet Company

Methods and systems for sports simulation

A sports simulator calculates the rotational and translational velocity of a sports object. The rotational velocity is calculated using image analysis.
Full-swing Golf, Inc.

Sports simulator and simulation method

A sports simulator calculates spin of a sports object using image analysis. A velocity vector is also calculated.
Full-swing Golf, Inc.

Golf ball having balance rotation line and manufacturing method therefor

A golf ball having a balance rotation line, wherein a balance rotation line is formed on an arbitrary line in which a point for marking the center of gravity of the ball is vertical to a joining line on the ball, thereby enabling accurate putting; and a manufacturing method therefor.. .
Acegolf Co, Ltd.

Golf ball

An ultra-low compression golf ball is disclosed herein. The core preferably has a pga compression less than 30.
Callaway Golf Company

Golf training aid

A golf training aid comprising a base, a support arm, and an alignment rod or guide, wherein the base is positioned in front of the target golf ball when the golfer is in position behind the target golf ball. The arm is attached to the base and is normal to the direction of the stroke or swing, wherein the alignment rod or guide is held by the support arm directly above the target golf ball as viewed by the golfer.

Golf balls having a core layer made from plasticized thermoplastic compositions

Multi-layered golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a thermoplastic composition, preferably including: a) ethylene acid copolymer, b) plasticizer, and c) cation source.
Acushnet Company

Multi-piece solid golf ball

In a multi-piece solid golf ball having a core, a cover and an intermediate layer therebetween, the core, an intermediate layer-encased sphere and the ball have surface hardnesses which satisfy a specific relationship, and the intermediate layer and the cover have thicknesses which satisfy a specific relationship. Also, the core has a hardness profile in which the hardnesses at the core surface, core center, a position 5 mm from the core center, and a position midway between the surface and center of the core satisfy specific relationships.
Bridgestone Sports Co., Ltd.

Golf balls having metal-containing plasticized thermoplastic inner cores and thermoplastic outer cores

Multi-piece golf balls containing a dual-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer.
Acushnet Company

Golf ball covers made from plasticized thermoplastic materials

Multi-layered golf balls containing a two or three-layered cover assembly are provided. In one embodiment, the cover assembly includes a relatively hard inner cover and relatively soft outer cover.
Acushnet Company

Golf ball compositions

Disclosed herein are golf ball compositions formed from polyureas made from aminocrotonates.. .
Acushnet Company

Golf ball having dimples with concentric grooves

The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the alteration of the dimple surfaces. In particular, the present invention relates to a golf ball that includes at least a portion of its dimples having circular perimeters and dimple profiles having a concentric groove on the surface of the dimple.
Acushnet Company

Golf balls having volumetric equivalence on opposing hemispheres and symmetric flight performance and methods of making same

Golf balls according to the present invention achieve flight symmetry and overall satisfactory flight performance due to a dimple volume ratio that is equivalent between opposing hemispheres despite the use of different dimple geometries on the opposing hemispheres.. .
Acushnet Company

Golf swing analysis from pre-strike sound

A system, device, and methods include or utilize a microphone, a processor, and a user interface. The microphone senses sound and in response outputs a sound signal indicative of the sound.
Nike, Inc.

Bridgestone Sports Co., Ltd.

. .

Dunlop Sports Co. Ltd.

. .

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Golf ball

Is at least 2.0.. .

Multi-piece solid golf ball

In a multi-piece solid golf ball having a core, an envelope layer, an intermediate layer, and a cover with a plurality of dimples thereon, the core is a two-layer core consisting of an inner core layer and an outer core layer each formed primarily of a base rubber, the envelope layer, the intermediate layer and the cover layer are each composed of at least one layer and formed primarily of a synthetic resin material, and the initial velocities and surface hardnesses of the core, the envelope layer-encased sphere and the intermediate layer-encased sphere are designed within specific ranges. This golf ball satisfies at a very high level the flight and control performances expected for use by professional golfers and skilled amateurs, has the ability to move forward on a straight path particularly on full shots, and also has an excellent scuff resistance..
Bridgestone Sports Co., Ltd.

Golf ball

The dimples 12 include a plurality of small dimples each having an area of less than 8.0 mm2.. .

Modulus transition layers for stiff core golf balls

A golf ball is provided that includes at least two layers of material disposed between a spherical core and a cover layer, wherein the elastic modulus of each is within three orders of magnitude of each adjacent layer or core. The spherical core can be a hollow metal core.
Oncore Golf Technology, Inc.

Golf balls having multi-layered cores with heat-activated foam center

Multi-layered, golf balls having a core made of a foamed composition are provided. The core preferably has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer.
Acushnet Company

Golf balls having particle-based foam center

Multi-layered, golf balls having a core made of a particle-based polyurethane foam composition are provided. The ball includes a dual-layered core having a foam inner core (center) and surrounding outer core layer.
Acushnet Company

Golf ball resin composition and golf ball

A golf ball resin composition includes (a) a styrene-based thermoplastic elastomer having a shore d hardness of not more than 48 and (b) a thermoplastic resin having a shore d hardness of at least 49 and containing either styrene monomer units or diene monomer units on the molecule, in a compounding ratio a/b therebetween of from 85/15 to 15/85. Using this resin composition as a golf ball cover material provides the ball with an excellent controllability around the green on shots with a short iron such as a sand wedge.
Bridgestone Sports Co., Ltd.

Golf ball and resin composition for cover or topcoat thereof

A resin composition for a cover or topcoat of golf balls includes: a resin for a cover or topcoat of a golf ball; an ultraviolet (uv) absorber for absorbing uv rays, of which an absorbance spectrum has an absorption peak at a wavelength in a range of 310 nm to 330 nm, has an absorbance in a wavelength range of 300 nm to 350 nm of at least 1.0 au and has an absorbance at a wavelength of 370 nm of 0.1 to 0.5 au; and a fluorescent whitening agent for absorbing uv rays and emitting visible rays, of which an absorbance spectrum has an absorption peak at a wavelength in a range of 350 nm to 370 nm, wherein a concentration of the uv absorber ranges from 0.25 to 1.5% by mass with respect to a total mass of the resin composition.. .
Bridgestone Sports Co., Ltd.

Golf ball dimple shape

The present invention is directed to golf balls having improved aesthetics and desirable aerodynamic properties due, at least in part, to the novel shape of the dimples on the surface thereof. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a shape obtained from the intersection of a toroid and a sphere.
Acushnet Company

Dunlop Sports Co. Ltd.

. .

Dunlop Sports Co. Ltd.

. .

Apparatus and forming an inverted, truncated pyramidal shape of stacked golf balls within a tray and forming on top an upright, pyramidal shape of stacked golf balls

A tray for stacking golf balls into a truncated, inverted pyramidal shape and upon which may be stacked on top a regular pyramidal stack of golf balls that self-supports to retain its shape. The tray includes a base, four diverging walls and a rim.

Adjustable golf tee

A telescoping golf ball tee with an internal locking mechanism is provided. The internal locking mechanism permits the golf ball tee neck to adjust to a desired height while still supporting the weight of a golf ball.
Creative Golf Innovations Llc

Golf club head having optimized ball speed to ct relationship

A golf club head comprising a body, a variable face thickness pattern, and a plurality of solid metal stiffening rods, and which satisfies the equation vballnorm≧0.0356x+140.82, is disclosed herein. The body comprises a face, a sole, and a return section, and defines a hollow interior.
Callaway Golf Company

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Iron-type golf clubs and golf club heads

An iron-type golf club head includes a ball striking face and a rear weight member that are engaged through one or more resilient members with a connection structure that creates a mass-damping effect at impact with a golf ball.. .
Karsten Manufacturing Corporation

Golf ball

The invention provides a golf ball having a core and a cover of one or more layer encasing the core, wherein, letting hu-a and hu-b be respectively the martens hardnesses measured at positions 100 μm and 200 μm inward from a surface of an outermost layer of the cover and toward a center of the core, and letting hu-c be the martens hardness measured at a position 100 μm from an inner side of the outermost cover layer and toward the surface, hu-a or hu-b is harder than hu-c.. .
Bridgestone Sports Co., Ltd.

Biodegradable materials and methods of making the same

Biodegradable materials and methods of their manufacture. Certain embodiments of the biodegradable materials include a crustacean shell material, at least one of gelatin, glycerin, and sorbitol, and water, wherein the biodegradable material is characterized in that, when it is exposed to water for an extended period of time, the material at least partially decomposes.
University Of Maine System Board Of Trustees

Golf ball

A dimple pattern of each hemisphere of the golf ball 2 includes three units rotationally symmetrical to each other.. .

Golf ball

A golf ball 2 includes an inner core 4, an outer core 6, a mid layer 8, and a cover 10. A diameter d1, a volume v1, a hardness h1o at a central point, and a boundary inside hardness h1in of the inner core 4; a volume v2, a boundary outside hardness h2out, and a surface hardness h2s of the outer core 6; a thickness tm and a hardness hm of the mid layer 8; and a thickness tc and a hardness hc of the cover 10 meet the following mathematical formulas (1) to (4): 1.0<v2/v1<7.0 (1); −2<h2s−h2out<2 (2); 600<(h1o+h1in)*(d1/2)/2<1000 (3); 620<tc*hc*hm/tm<900 (4).
Dunlop Sports Co. Ltd.

Two-piece golf ball

In the mathematical formula, n represents a total number of the dimples 8, so represents a ratio of a total area of all the dimples 8 relative to a surface area of a phantom sphere of the golf ball 2, and bb represents an average (mm) of thicknesses b of the cover 6 immediately below deepest points of the dimples 8.. .

Golf ball

The invention provides a golf ball having a core and a cover of one or more layer encasing the core, wherein the cover has an outermost layer molded of a thermoplastic material selected from the group consisting of polyurethane, polyurea and mixtures thereof and, letting the absorbance peak heights near a wave number of 1512 cm−1 measured by the attenuated total reflectance method in fourier transform infrared absorption spectroscopy (ft-ir/atr spectroscopy) at an outside portion and an inside portion of the outermost cover layer be respectively p1 and p2, the value p1−p2 is at least 0.02.. .
Bridgestone Sports Co., Ltd.

Golf ball

An object of the present invention is to provide a golf ball travelling a great flight distance on driver shots, exhibiting an excellent spin performance on approach shots under a dry condition and a wet condition, and showing an excellent shot feeling and durability. The present invention provides a golf ball comprising a golf ball body having a spherical core, an intermediate layer and a cover, and a paint film composed of two or more layers, wherein a 10% elastic modulus difference (min−mout) between an innermost layer and an outermost layer of the paint film is 25 kgf/cm2 or more..
Dunlop Sports Co. Ltd.

Impact and sound analysis for golf equipment

Golf performance and equipment characteristics may be determined by analyzing the impact between a golf ball and an impacting surface. In some examples, the impacting surface may be a golf club face.
Karsten Manufacturing Corporation

Dunlop Sports Co. Ltd.

. .

Dunlop Sports Co. Ltd.

. .

Golf club head having face stress-reduction features

A golf club head comprising a body, at least one weight cartridge, and a plurality of hollow tubes is disclosed herein. The body comprises a face section, a sole section, and a return section, and also defines a hollow interior.
Callaway Golf Company

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Golf ball

A golf ball 2 includes a core 4, a mid layer 6, and a cover 8. A difference dh in hardness between a surface and a central point of the core 4, a thickness tm and a hardness hm of the mid layer 6, a thickness tc and a hardness hc of the cover 8, and an amount of compressive deformation sb of the golf ball 2 meet the following mathematical formulas (dh*hm)/(hc*tc)>80 and ((sb*tc)/(hc*hm*tm))*1000>0.75.
Dunlop Sports Co. Ltd.

Two-piece golf ball

In the mathematical formula, nf(2)1 represents a secondary natural frequency of the core 4, and nf(2)2 represents a secondary natural frequency of the golf ball 2. A difference (h1s−h1o) between a shore c hardness h1s at a surface of the core 4 and a shore c hardness h1o at a central point of the core 4 is equal to or greater than 10.

Golf ball

A dimple pattern of each hemisphere of the golf ball 2 includes three units that are rotationally symmetrical to each other. A dimple pattern of each unit includes two small units that are mirror-symmetrical to each other..

Golf ball

An object of the present invention is to provide a golf ball showing an increased spin rate on approach shots under a wet condition while maintaining a spin rate on approach shots under a dry condition. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film has a multi-layered construction composed of two or more layers, and a difference (mout−min) between a 10% elastic modulus (mout) of an outermost layer of the paint film and a 10% elastic modulus (min) of an innermost layer of the paint film is 25 kgf/cm2 or more..
Dunlop Sports Co. Ltd.

Dunlop Sports Co. Ltd.

. .

Golfing aid, training golf club, and training golf ball

A club mountable golfing aid is operable to indicate to a golfer a location at which a training golf ball contacts a striking surface of the club mountable golfing aid when the club mountable golfing aid is mounted on a golf club. The club mountable golfing aid includes an attachment mechanism that is configured to mount the club mountable golfing aid to a head of a golf club.
Fighting Golf, Llc

Golf tee with ball support

A golf tee that includes a stake that has an insertion end and a crown for supporting a golf ball. The crown is supported by the stake opposite the insertion end.
Green Keepers, Inc.

Multi-layer core golf ball

Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a layer formed from a highly neutralized polymer composition and a layer formed from a thermoset rubber..
Acushnet Company

Golf ball

Rs≧−2.5*so+273  (1). .

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Centerline face-forward putting

A method for a golfer to putt a golf ball over the surface of a green toward a hole comprises selecting a target line on the green, assuming a stance next to the ball facing the hole, addressing the ball by gripping the shaft of a putter and positioning it behind the ball with the hands generally facing toward one another in front of and facing the golfer's body, executing a backstroke by drawing the hands toward the body's vertical centerline to swing the arms rearwardly about an axis of rotation through the shoulders to take the putter head away from the ball along a rearward extension of the target line, and transitioning to and executing a forward stroke by moving the hands in a forward direction away from the golfer's body to swing the arms about the axis of rotation to stroke the putter head to strike the ball for rolling it along the target line.. .
On Cue Golf Inc.

Golf ball having a thermoplastic positive hardness gradient inner core layer and a thermoset shallow positive hardness gradient outer core layer

A golf ball has an inner core layer including a thermoplastic highly-neutralized ionomer and having a geometric center hardness less than a surface hardness to define a first positive hardness gradient. An outer core layer is formed about the inner core and includes a homogenous thermoset composition.
Acushnet Company

Golf ball incorporating at least one layer of plasticized neutralized acid polymer composition containing low molecular weight acid wax(es) as sole acid polymer component and making

A golf ball comprising at least one layer comprised of a neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; (c) at least one organic acid or salt thereof; and (d) at least one plasticizer. Each low molecular weight acid-containing wax may have a molecular weight of from about 500 to about 7000, and in some embodiments, the molecular weight may be considered low up to 30,000.
Acushnet Company

Golf ball incorporating at least one layer of neutralized acid polymer composition containing low molecular weight acid wax(es) as sole acid polymer component and making

A golf ball comprising at least one layer comprised of a neutralized acid polymer composition consisting of a mixture of: (a) at least one low molecular weight acid-containing wax; (b) at least one non-acid-polymer; and (c) at least one organic acid or salt thereof. Each low molecular weight acid-containing wax may have a molecular weight of from about 500 to about 7000, and in some embodiments, the molecular weight may be considered low up to 30,000.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a golf ball wherein each hemisphere has a dimple pattern based on a pyramid having dissimilar sides. The resulting overall dimple pattern is not based on preexisting polyhedral, and is not attainable using conventional dimple packing methods..
Acushnet Company

Systems and methods for fitting golf equipment

A golf equipment fitting system that uses advanced technology to not only objectively identify the optimum equipment for the golfer, but to also identify and help correct swing flaws so that the golfer can achieve optimum performance on the golf course. Thus, in one embodiment, golf fitting includes collecting data related to the golfer's swing and determining if the golfer's swing technique should be modified based at least in part on the collected swing data.

. .

Resin composition for golf ball and golf ball

The present invention provides resin compositions for golf balls which have excellent flexibility, fluidity, and resilience, and golf balls formed from the resin compositions. The present invention relates to a resin composition for golf balls including a polymer that contains a diene polymer moiety and a carboxylic acid-based moiety wherein carboxyl groups derived from the carboxylic acid-based moiety are neutralized..

Golf club having multicolored alignment apparatus

A putter head for a golf club includes a base having a putter face for striking a golf ball. A projection extends from the base.

Iron type golf club head

Iron-type golf club heads are disclosed having a heel portion, a sole portion, a toe portion, a top-line portion, a front portion, a rear portion, and a striking face. The iron-type golf club heads include a localized stiffened region that is located on the striking face of the club head such that the localized stiffened region alters the launch conditions of golf balls struck by the club head in a way that wholly or partially compensates for, overcomes, or prevents the occurrence of a rightward deviation.

Golf club head with structural columns

A golf club head having multiple structural columns is disclosed herein. A body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.

Golf ball

The golf ball 2 further includes a plurality of small dimples each having an area of less than 8.0 mm2 and a plurality of large dimples each having an area of equal to or greater than 8.0 mm2.. .

Golf ball

An object of the present invention is to provide a golf ball showing increased controllability on approach shots for less than 40 yards and showing excellent shot feeling. In the inventive golf ball, the paint film is formed from a curing type paint composition including: a base material containing a polyrotaxane, and a curing agent containing a polyisocyanate, and wherein the polyrotaxane has a cyclodextrin, a linear molecule included in a cyclic structure of the cyclodextrin in a manner of piercing through the cyclic structure of the cyclodextrin, and a blocking group located at both ends of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —o—c3h6—o— group..

Golf shirt with improved fit and contrast

The present invention is directed to a golf shirt with two laterally-opposed textile bands affixed thereto that are less stretchable than a textile used to construct the torso portion and the shoulder portion of the shirt. A first end of each band is adhered to a skirt of the collar portion, and a second end is adhered to a free end of the shirt.

Multiple sensor tracking system and method

A system and method for tracking the flight of golf balls at driving range. The invention includes a plurality of hitting stations, a plurality of sensors, a computer, and a range surface.
Origin, Llc

Inflatable putting green apparatus

An inflatable putting green apparatus includes a putting playfield that is selectively inflated or deflated. The putting playfield is inflated by forcing air into the putting playfield and deflated when the air is released from the putting playfield.

Multi functional golf tool

The invention relates to a multi functional golf tool that can be used to address a variety of circumstances that commonly arise during a game of golf. The multi functional tool includes a rectangular body having a proximal end, a tapered distal end being opposite said proximal end, the rectangular body having an arcuate cross-section along its entire length.

Putter face insert

A face insert comprising a planar member composed of a rigid material such as plastic or metal and a polymeric backing is disclosed herein. The planar member, which makes contact with a golf ball during use, includes a plurality of geometrically-shaped holes, each of which comprises a perimeter edge that has a variable radius to further optimize performance of the face insert.
Callaway Golf Company

Multi-layered cores for golf balls based on thermoplastic compositions containing non-acid polymers

Multi-layered golf balls containing a three-layered core assembly are provided. Preferably, at least one of the core layers is formed from a thermoplastic composition that comprises: a) thermoplastic non-acid polymer, and b) plasticizer.
Acushnet Company

Multi-piece solid golf ball

In a multi-piece solid golf ball having a two-layer core consisting of an inner layer and an outer layer, a cover, at least one intermediate layer between the core and the cover, and a paint film layer formed on the cover surface, each layer of the two-layer core is formed primarily of a rubber composition, the intermediate layer and the cover are each formed primarily of a resin material, the core has a hardness profile which satisfies specific conditions, and the sphere consisting of the core encased by the intermediate layer has a higher surface hardness than the ball. When used by mid- to high-level golfers, this ball achieves sufficient reduction in the spin rate on full shots with a driver, enabling the distance to be increased, and the spin performance on approach shots is excellent, enhancing the enjoyability of the game..
Bridgestone Sports Co., Ltd.

Golf ball with excellent interlayer adhesion between adjacent differing layers

Golf ball and method for making it, comprising a first layer that comprises a first polymeric composition and is surrounded by and adjacent to a second layer comprising a second polymeric composition different than the first polymeric composition; with one of these layers further comprising at least one silane-containing adhesion promoter such as organosilanes and/or organosiloxanes throughout in an amount of from about 0.1 wt. % to about 5.0 wt.
Acushnet Company

Golf ball covers made from plasticized thermoplastic materials

Multi-layered golf balls containing a two or three-layered cover assembly are provided. In one embodiment, the cover assembly includes a relatively hard inner cover and relatively soft outer cover.
Acushnet Company

Golf ball resin composition and golf ball

An object of the present invention is to provide a golf ball resin composition having an excellent rebound resilience. The present invention provides a golf ball resin composition containing an ionomer resin as a resin component.
Dunlop Sports Co., Ltd.

Golf ball dimple plan shape

The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the plan shapes of the dimples thereon. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by low frequency periodic functions along a closed simple path.
Acushnet Company

Golf ball dimple plan shapes and methods of generating same

The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the plan shapes of the dimples thereon. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by low frequency periodic functions along a closed simple path.
Acushnet Company

Golf ball having surface divided by small circles

Provided is a golf ball having a surface divided by small circles. A surface of a sphere is divided by small circles to generate spherical polyhedrons in order to arrange dimples in the spherical polygons, instead of arranging dimples in spherical polyhedrons that are generated by dividing the surface of the sphere by great circles.
Volvik Inc.

Golf ball dimple plan shape

The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the plan shapes of the dimples thereon. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by low frequency periodic functions along a closed simple path.
Acushnet Company

Non-circular golf ball dimple plan shapes and methods of making same

The present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by superposed curves. In addition, the present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the dimple plan shapes and resulting dimple patterns..
Acushnet Company

Curvilinear golf ball dimples and methods of making same

The present invention is directed to golf balls having surface textures with unique appearances and improved aerodynamic characteristics due, at least in part, to the use of curvilinear dimple plan shapes. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by a number of convex or concave arcs that are derived from the vertices of a regular n-sided polygon..
Acushnet Company

Golf ball dimple plan shapes and methods of making same

The present invention is directed to golf balls having improved aerodynamic performance due, at least in part, to the selection of the dimple plan shapes. In particular, the present invention is directed to a golf ball that includes at least a portion of its dimples having a plan shape defined by high frequency periodic functions along a simple closed path.
Acushnet Company

Resin composition for golf ball cover

The present invention provides a resin composition for a golf ball cover, wherein, since the resin composition for a golf ball cover according to the present invention minimizes changes in physical properties due to temperature changes and improves restitution characteristics, the resin composition for a golf ball cover may reduce performance deviations of a golf ball due to seasonal temperature changes and may improve a spin rate of the golf ball.. .
Skc Co., Ltd.

Golf shot reference device

An elongate substrate strip of durable material with a top side having a linear arrangement of equally spaced circles each representing a regulation size golf ball; the circles being numbered consecutively for use as a reference to indicate ball position and/or foot position. The linear strip may be formed in two segments that are pivotally attached to one another to allow for pivotal swinging movement of one segment relative to the other so that the segments can be extended to a straight linear configuration, a right angle (90 degree) configuration and to a collapsed low profile configuration.

Golf balls having foam, hollow, or metal center and plasticized thermoplastic core layer

Multi-layered golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) made from a foam or metal-containing composition, or it has a hollow shell construction, and the outer core layer is made of a thermoplastic composition.
Acushnet Company

Golf ball incorporating at least one stiffened layer

Golf ball comprising at least one layer ls comprising material lm formed from a polymeric composition and a plurality of liquid droplets that are formed throughout the polymeric composition by combining the polymeric composition and a liquid that is immiscible in the polymeric composition. The polymeric composition has a modulus ms1 and material lm has a modulus ms2 wherein (ms2/ms1)>1.
Acushnet Company

Multi-layer golf ball

Golf balls having at least one layer formed from a thermoplastic composition comprising a polymeric (meth) acrylate plasticizer are disclosed.. .
Acushnet Company

Golf ball

An object of the present invention is to provide a golf ball having an excellent spin performance on approach shots under a wet condition. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the cover is formed from a cover composition containing (a) a polyurethane and (b) a polyrotaxane as a resin component, and wherein (b) the polyrotaxane has a cyclodextrin, a linear molecule piercing through the cyclic structure of the cyclodextrin, and blocking groups located at both terminals of the linear molecule to prevent disassociation of the cyclodextrin, and at least a part of hydroxyl groups of the cyclodextrin is modified with a caprolactone chain via —o—c3h6—o— group..
Dunlop Sports Co. Ltd.

Golf swing ball impact teaching tool

A golf teaching tool to provide instant user feedback, while explaining and encouraging proper ball impact. The golf teaching tool includes a rectangular plate with a cutout section.

Groove pattern for a putter head

A putter head is provided. The putter head includes a putter face defining a groove pattern extending in a heel-to-toe direction of the putter face.

Golf club head having optimized ball speed to ct relationship

A golf club head comprising a body and a plurality of stiffening members and satisfying the equation vballnorm≧0.0356x+140.82 is disclosed herein. The body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Golf club head having optimized ball speed to ct relationship

A golf club head comprising a body and a plurality of stiffening members and satisfying the equation vballnorm≧0.0356x+140.82 is disclosed herein. The body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Multi-piece solid golf ball

A golf ball having a core, a cover and at least one intermediate layer therebetween satisfies specific conditions concerning the relative surface hardnesses of the core, the intermediate layer-encased sphere and the ball, and has a specific core hardness profile. Also, the value v/h, where v is the initial velocity of the ball and h is the deflection of the ball under specific loading, is set within a specific range.
Bridgestone Sports Co., Ltd.

Acushnet Company

. .

Golf ball paint composition

A golf ball paint composition includes primarily a urethane paint made of a polyol and a polyisocyanate. The polyol is an acrylic polyol, and the composition has an elastic work recovery of at least 70%.
Asia Industry Co., Ltd.

Base-less, low-resistance driving range golf mat tee

The subject invention discloses a base-less, low-resistance driving range golf mat tee for supporting a golf ball when used in combination with a typical driving range golf mat. The base-less, low-resistance driving range golf mat tee is comprised of a tubular shaft member with a distal end extending upwardly and terminating at its proximal end at its proximal end top surface.

Adjustable training golf tee

An adjustable training golf tee is provided. The adjustable training golf tee may include a top body, a stem and a base.
Fits To A Tee Golf, Llc

Golf ball holder device

A golf ball holder device has a concave body made of a yieldably bendable material. The concave body is arcuate in shape both length-wise and width-wise so as to define an interior surface forming an interior cavity and an opening to the interior cavity through which a golf ball can be inserted into or removed from a snug gripping hold by the interior surface on the golf ball within the interior cavity of the concave body..

Golf ball multilayer core having a gradient quotient

Where g′ is the overall positive hardness gradient in shore c, t is the percent of trans-polybutadiene isomer at the core outer surface, and cor is the coefficient of restitution measured at an incoming velocity of 125 ft/s.. .

Golf ball

In a multi-piece solid golf ball having a core, a cover and an intermediate layer therebetween, letting hc be the jis-c hardness at the core center, h12 be the jis-c hardness at a position 12 mm from the core center and ho be the jis-c hardness at the core surface, the core has a hardness profile which satisfies the conditions 0≦h12−hc≦15, 15≦ho−h12≦30, (ho−h12)−(h12−hc)≧10 and 20≦ho−hc≦40. Also, letting a be the value represented by (ho−h12)−(h12−hc), the spin index of the ball, defined as the dynamic coefficient of friction for the ball multiplied by a, is at least 3.0.
Bridgestone Sports Co., Ltd.

Acushnet Company

. .

Acushnet Company

. .

Golf tee and beverage closure combination

A golf tee and beverage cap combination comprises a tubular concave twist off cap, having different methods of securement to containers, extending from its bottom a tapering member that ends in a pointed tip. The beverage cap and golf tee can either be one piece or connected to one another through a protruding member associated to the bottom of a beverage cap.

Golf club head having optimized ball speed to ct relationship

A golf club head comprising a body and a plurality of stiffening members and satisfying the equation vballnorm≧0.0356x+140.82 is disclosed herein. The body comprises a face section, a sole section, and a crown or return section, and defines a hollow interior.
Callaway Golf Company

Medium gradient multi-piece urethane covered golf ball

A golf ball includes a core having an outer surface and a geometric center; an inner cover layer, and an outer cover layer. The inner cover layer includes an ionomeric material and has a material hardness of about 60 shore d or greater.
Acushnet Company

Golf ball having medium positive gradient quotient and high trans content

Where g′ is the positive hardness gradient in shore c, t is the percent trans-polybutadiene isomer at the core outer surface, and cor is the coefficient of restitution of the core measured at an incoming velocity of 125 ft/.. .

Golf ball having medium positive gradient quotient and low trans content

Where g′ is the positive hardness gradient in shore c, t is the percent trans-polybutadiene isomer at the core outer surface, and cor is the coefficient of restitution of the core measured at an incoming velocity of 125 ft/s.. .

Dual core having thermoplastic inner core, thermoset outer core layer, and positive hardness gradient

A golf ball includes a thermoplastic hnp inner core layer having a center hardness less than the surface hardness to define a positive hardness gradient. An outer core layer is formed from a thermoset rubber composition.
Acushnet Company

Golf aid including heads up display

A golf aid for displaying one or more golf-related statistics to a user includes a golf ball tracking system for tracking a flight of a golf ball, a heads up display, and a processor in communication with the golf ball tracking system and the heads up display. The heads up display is configured to be worn on the user's head and display an image within the user's field of view.
Syngenta Participations Ag

Method for evaluating golf ball dimple effects

A method for evaluating dimple effects on a golf ball includes the steps of: setting up, in a computer, a geometric model representing a dimple that is a concave or convex region and a virtual airflow space which surrounds a periphery of the dimple model; generating a grid in the virtual airflow space and configuring the grid so as to be finer near the dimple model surface and coarser away from the surface; establishing a state where an air stream flows into the virtual airflow space; calculating the momentum thickness in a given plane passing through the dimple; and rating the dimple effects highly when the dimple model has a low momentum thickness. This method directly evaluates the shape of the dimples alone, and thus is simple and can shorten the evaluation time while ensuring good accuracy,.
Bridgestone Sports Co., Ltd.

Golf balls comprising a plasticized polyurethane layer

A golf ball comprising a core and a cover layer, wherein at least one of the core or cover layer comprises a plasticized polyurethane composition comprising at least one polyurethane and at least one plasticizer.. .
Acushnet Company

Golf balls having multi-layered covers made from plasticized compositions containing non-acid polymers

Multi-layered golf balls containing a three-layered cover assembly are provided. For example, a cover assembly having an inner cover, intermediate cover, and outer cover layer may be prepared.
Acushnet Company

Golf balls having metal-containing plasticized thermoplastic inner cores and thermoset outer cores

Multi-piece golf balls containing a dual-layered core structure are provided. The core structure includes a small, heavy inner core (center) having a relatively high specific gravity, and a surrounding outer core layer.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Impact point estimation apparatus

Provided is an impact point estimation apparatus for estimating an impact point on a face surface of a head when a golf club having a grip, a shaft and the head is swung and hits a golf ball. The apparatus has an acquisition unit, a calculation unit, and an estimation unit.
Dunlop Sports Co. Ltd.

System for generating a dynamic and interactive user-interface utilized to improve striking and putting golf balls

Methods and system generating data utilized to create, populate, and format a dynamic and interactive user interface for improving a golfer's driving and putting are disclosed. The system that may be utilized by golfers to improve ball striking and putting, comprising a base station, a server system, and a digital ball marker.

Golf swing analysis apparatus and method

A method and integrated golf club apparatus for directly measuring physical parameters of the golf club head motional acceleration swing forces, golf club head face, golf ball impact forces, and subsequent calculations of other metrics useful to a golfer's understanding of the effectiveness of his or her golf swing and impact result in totality. The physical parameters that are directly measured include three dimensional motion force vectors of club head prior to, during and after impact and full impact pressure force profiles across the golf clubface with respect to time.
Golf Impact Llc

Bridgestone Sports Co., Ltd.

. .

Club heads with varying impact responses and related methods

Some embodiments include a golf club head. The golf club head includes a front body having a front body front portion with a front body front surface and having a front body rear portion, and includes a rear body having a rear body front portion, a rear body rear portion, and multiple protrusions.
Karsten Manufacturing Corporation

Golf ball manufacturing method

(2) washing off and physically removing excess isocyanate compound by blasting the cover surface with a specific substance at high pressure.. .

Golf balls having a center with surrounding foam outer core layer

Multi-layered golf balls having a dual-layered core and cover of at least one layer are provided. The dual-core construction includes a non-foamed inner core (center) made of a thermoplastic or thermoset composition such as polybutadiene rubber.
Acushnet Company

Multi-layer core golf ball

Golf balls having a very high positive gradient multilayer core are provided. The multilayer core includes an outer core layer and a very soft, low compression inner core layer.
Acushnet Company

Multi-layer core golf ball

Golf balls having a very high positive gradient multilayer core are provided. The multilayer core includes an outer core layer and a very soft, low compression inner core layer.
Acushnet Company

Multilayer core golf ball having hardness gradient within and between each core layer

The present invention is directed to an improved multi-layered core golf ball wherein each core layer comprises its own specific hardness gradient (positive, negative or a combination) in addition to an overall specific hardness gradient from one core layer to the next.. .
Acushnet Company

Golf balls incorporating crosslinked polymer compositions

Golf ball incorporating polymer composition comprising: (i) a reaction mixture of ethylene-acid copolymer and c3-8 α, β-ethylenically unsaturated carboxylic acid(s); and (ii) poly-hydroxy crosslinking agent(s) such as polyvinyl alcohol, diols, glycols, sugar alcohols, and/or glycerols. Concentration of poly-hydroxy crosslinking agent(s) in polymer composition may be up to about 10% (or up to about 5%, or from 0.1% to about 2.5%, or from about 0.05% to 0.95%), by weight, based on 100% total weight of polymer composition.
Acushnet Company

Golf ball parting line configuration and mold

A golf ball comprises two generally hemispherical portions joined together at a parting line and comprising dimples on respective outer surfaces thereof. The parting line comprises a repeating pattern of curved segments alternating with straight segments.
Taylor Made Golf Company, Inc.

Golf club heads

Described are embodiments of golf club heads having an internal cavity and features that cause the golf club head to have an improved acoustic performance when striking a golf ball. Some embodiments include one or more weight tracks and/or weight ports formed in the sole for receiving adjustable weights.
Taylor Made Golf Company, Inc.

Golf club head having surface features that influence golf ball spin

A golf club head includes a body having a crown opposite a sole, a toe end opposite a heel end, a back end, and a hosel. The golf club head also includes a club face having a loft below a loft threshold in which increasing a coefficient of friction between a golf ball and the club face decreases the spin imparted on the golf ball after impact with the club face.
Karsten Manufacturing Corporation

Multi-layer golf ball

The present invention is directed to multi-layer golf balls including a layer formed from a composition comprising a relatively soft or low modulus hnp, a layer formed from a composition comprising a relatively hard or high modulus hnp, an inner cover layer formed from a thermoplastic composition, and an outer cover layer.. .
Acushnet Company

Golf ball

An object of the present invention is to provide a golf ball having an excellent flight performance on driver shots. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) an unsaturated fatty acid and/or a metal salt thereof excluding an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof, and provided that the rubber composition further contains (f) a metal compound if only an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms is present as (b) the co-crosslinking agent..
Dunlop Sports Co. Ltd.

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Golf swing analysis apparatus and method

An apparatus for analyzing a golf swing according to an exemplary embodiment of the present invention includes: a signal detecting unit including a doppler radar sensor which radiates a transmission wave to a golf club and a golf ball and detects a reflected wave, in which a first reflected wave of the golf club and a second reflected wave of the golf ball are mixed, and detects a frequency deviation between the transmission wave and the mixed reflected wave and generates an output signal; and a swing analysis information calculating unit configured to calculate a speed of the golf club and a speed of the golf ball by using the output signal.. .
Ucomm Technology, Co., Ltd.

Golf club alignment device

An alignment device for attachment to a golf club includes a pair of elongate guide rods removably connected to a striking face of a golf club head having a toe region and a heel region, the pair of elongated guide rods being relatively spaced to enable a golf ball to be positioned therebetween. A pair of connection plates attaches the pair of elongate guide rods to the striking face and an adhesive layer for mounting the connection plates to the striking face.

Device and method to precisely isolate and minimize direction errors for short putts

A device for practicing putting of a golf ball includes: an elongate base with opposed first and second ends and an upper surface; an elongate rail with an upper surface and opposed first and second ends, the rail mounted to the base such that the upper surface of the rail is positioned above and generally parallel with the upper surface of the base; a locating feature positioned adjacent the first end of the rail, the locating feature configured to provide a resting place for a golf ball; and a target area positioned near the second end of the base panel located adjacent the second end of the rail. Such a device can provide immediate and accurate feedback on putting errors committed by the user..
Outside The Leather, Llc

Method and simulated golf

Described herein are methods and apparatuses for simulating golf. For example, described herein is a system for simulating a golf game.
Full-swing Golf, Inc.

Golf balls having multi-layered covers based on castable thermoplastic polyurethanes

Golf balls having multi-layered covers are provided. Preferably, the ball includes an inner cover layer made of an aromatic polyurethane composition; and an outer cover layer made of an aliphatic polyurethane composition.
Acushnet Company

Golf tee with spark induction coating and improving golf performance

A golf tee having a contact alert coating cooperates with a golf ball and a golf club to provide a novel training aid that is economical, compact, and encourages proper golfing form. The golf tee has a golf tee body with a top plate, top wall and side walls.

Multi-piece solid golf ball

In a multi-piece solid golf ball having a rubber two-layer core consisting of an inner layer and an outer layer, a cover, and at least one intermediate layer therebetween, the inner core layer has a diameter of at least 30 mm, the difference in jis-c hardness between the center of the inner core layer and the surface of the outer core layer is at least 25, the ball satisfies the relationship a/b≦1.5, where a and b are the deflections of, respectively, the inner core layer and the two-layer core when compressed under specific loading conditions, and the intermediate layer has a higher material hardness than the cover. This ball enables mid- to high-level golfers both to achieve even longer distances and to maintain the spin performance on approach shots at a high level..
Bridgestone Sports Co., Ltd.

Golf ball

An object of the present invention is to provide a golf ball showing an increased spin rate on approach shots under a wet condition while maintaining a spin rate on approach shots under a dry condition. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein the paint film has a multi-layered construction composed of two or more layers, and a difference (min−mout) between a 10% elastic modulus (min) of an innermost layer of the paint film and a 10% elastic modulus (mout) of an outermost layer of the paint film is 25 kgf/cm2 or more..
Dunlop Sports Co. Ltd.

Golf vision discipline training system and method

An eyeglass assembly for training golfers includes first and second lenses that are opaque except at first and second viewing portions. The first viewing portion on the first lens provides a first eye of the user with a view of the target in a target region, such as the golf ball, while the second viewing portion provides a second eye of the user with a view not including the target region.

Multi-layer core golf ball

Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center, an intermediate core layer, and an outer core layer.
Acushnet Company

Golf balls having multi-layered foam cores with structural inserts

Multi-layered, golf balls having a core made of a foamed composition are provided. The core preferably has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer.
Acushnet Company

Golf balls incorporating regenerating-type multi-functional antioxidants

Golf balls having at least one layer comprising a polymer composition comprising a reaction mixture of a base polymer and at least one regenerating-type multi-functional antioxidant. A regenerating-type multi-functional antioxidant has at least two differing moieties selected for example from the group consisting of phenols, phosphites, amines or combinations thereof, and is macromolecular, having a molecular weight of at least 2,000 g/mol.
Acushnet Company

Golf balls having a foam center

Multi-layered golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Dimple patterns for golf balls

The present invention provides a method for arranging dimples on a golf ball surface in which the dimples are arranged in a pattern derived from at least one irregular domain generated from a regular or non-regular polyhedron. The method includes choosing control points of a polyhedron, generating an irregular domain based on those control points, packing the irregular domain with dimples, and tessellating the irregular domain to cover the surface of the golf ball.
Acushnet Company

Golf-swing monitoring system

A system for automatically gathering information on a performance of an action involving an object being hit or struck, the system comprising at least one object contact sensor for detecting a contact with the object. Preferably one or more of the at least one object contact sensors comprises a shock and/or vibration sensor such as an accelerometer, and/or one or more of the at least one object contact sensors comprises a sound sensor; and the system is configured to at least partially detect shock and/or vibrations caused by contact with the object using the one or more shock and/or vibration sensors and/or at least partially detect sound generated by contact with the object using the one or more sound sensors to thereby detect contact with the object.
Shot Scope Technologies Limited

Acushnet Company

. .

Golf ball resin composition and golf ball

An object of the present invention is to provide a golf ball resin composition having high resilience and flexibility. The present invention provides a golf ball resin composition, comprising (a) at least one resin component selected from the group consisting of (a-1) a binary copolymer, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer, (a-3) a ternary copolymer, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer, (b) a saturated fatty acid, (c) an unsaturated fatty acid, and (d) a carboxyl group modified diene polymer having at least two carboxyl groups and/or an anhydride of the carboxyl groups; and having a neutralization degree of more than 80 mole %, wherein a total amount of (b) the saturated fatty acid, (c) the unsaturated fatty acid and (d) the carboxyl group modified diene polymer ranges from 100 parts by mass to 200 parts by mass with respect to 100 parts by mass of (a) the resin component..
Dunlop Sports Co. Ltd.

Direction indicating device for putter

A direction indicating device for a putter according to the present invention corresponds to a direction indicating device for a putter having a putter head, comprising: a base member attached to one side surface of the putter head; and a direction indicating member detachably coupled to the base member wherein at least a part of the direction indicating member extends frontward of the putter head in parallel with the stroke direction of the putter head while being maintained at a level higher than a golf ball. According to the present invention as described above, since a user can visually identify an alignment state of the putter head at the time of putting, the user can easily move the putter head along a target line and thus can improve the accuracy of the putting..

Golf putter head with visual alignment aid and methods of manufacture

Embodiments for a golf club head comprising a body having a face, a back opposite the face, a heel, a toe opposite the heel, a crown, and a sole opposite the crown, a centerline perpendicular to the face and passing through a geometric center of the face, and an alignment aid disposed on a crown surface of the crown, the alignment aid comprising an alignment aid width, wherein the alignment aid width is approximately equal to a diameter of a golf ball, and a sight line disposed on the crown surface, the sight line being aligned with the centerline; wherein the alignment aid width is centered about the centerline.. .
Karsten Manufacturing Corporation

Golf balls incorporating at least one thermosetand/or thermoplastic layer/coating/film via reactive spray

A method of forming a golf ball comprising at least one layer consisting of at least one of a thermoset or thermoplastic composition comprising the steps of: providing a subassembly having at least one of an innermost surface or an outermost surface; providing at least one polymeric mixture pc comprising a plurality of particles having a softening, melting and/or reacting temperature mp; heating a fluid with a heat source that does not contact pc to a temperature mph wherein mp≦mph to form a heated fluid; softening, melting and/or reacting the plurality of particles by mixing each polymeric mixture pc with at least one heated fluid and forming at least one heated mixture pcs; and propelling each pcs onto at least one of the innermost surface or the outermost surface to form a thermoset and/or thermoplastic layer tmpl about the outermost surface which may be comprised of a heterogeneous composition. The thickness of tmpl may be from about 3 mils to about 0.10 in..
Acushnet Company

Golf ball

An object of the present invention is to provide a golf ball traveling a great flight distance. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a ratio (t2/t1) of a time (t2) to a time (t1) of 1.05 or more in a hitting test using a driver (at a head speed of 40 m/sec), wherein the time (t1) is a time taken from a moment that the driver begins to contact with the golf ball to a moment that the golf ball reaches a maximum deformation amount, and the time (t2) is a time taken from the moment that the golf ball reaches the maximum deformation amount to a moment that the golf ball leaves the driver..
Dunlop Sports Co. Ltd.

Golf ball cores having foam center and thermoset outer layers with hardness gradients

Multi-layered golf ball core sub-assemblies and the resulting golf balls are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Golf ball having medium positive gradient quotient

Where g′ is the core positive hardness gradient in shore c, t is the percent of trans-polybutadiene isomer at the core outer surface, and cor is the coefficient of restitution of the core measured at an incoming velocity of 125 ft/s.. .

Golf ball

An object of the present invention is to provide a golf ball excellent in flying performance, in particular, to provide a golf ball traveling a great flight distance. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, wherein the spherical core is formed from a rubber composition containing (a) a base rubber, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d1) an aromatic carboxylic acid or (d2) an aromatic carboxylic acid salt, provided that the rubber composition further contains (e) a metal compound in the case of containing only (b) the α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms as the co-crosslinking agent..
Dunlop Sports Co., Ltd.

Illuminated golf

There is set forth herein one or more feature for providing illuminated golf. The one or more feature can comprise e.g., a golf cup apparatus having a light source bank, a golf flag apparatus having a light source bank, a wearable apparatus having a light source bank, an illumination providing golf ball and an apparatus for charging a golf ball having a light source bank..

Golf ball with rfid inlay in a molded impression

A compressible core with an rfid tag is described. The compressible core includes an rfid integrated circuit, a carrier material, a molded compressible core, and a fill material.
Edge Technology

After market metal golf club grip

An after-market golf club grip for attachment to the shaft of a golf club includes an elongate outer body and absorption means for absorbing vibration in the outer body when the golf club strikes a golf ball. The outer body defines a bore along its longitudinal axis to accommodate a golf club shaft.

Golf club configured for multiple adjustability

In some embodiments, an adjustable putter includes a club body defining a substantially planar face for striking a golf ball, and a hosel including a hosel neck and a hosel adapter configured to be received within a hosel chamber defined by the club body. The hosel adapter defines an interior channel.
Brainstorm Golf, Inc.

Golf club head

A golf club providing improved golf ball launch conditions is disclosed herein. The golf club includes a face component and a sole comprising an elongated recess disposed proximate the face component.
Callaway Golf Company

Golf ball cores made from plasticized thermoplastic compositions containing non-acid polymers

Multi-layered golf balls containing a two-layered core assembly are provided. Preferably, at least one of the core layers is formed from a thermoplastic composition that comprises: a) thermoplastic non-acid polymer, and b) plasticizer.
Acushnet Company

Golf ball compositions

The present invention is directed to thermoset rubber compositions comprising from 1 phr to 20 phr of a zinc ionomer. The thermoset rubber composition is used to form at least one layer of a one-piece, two-piece, or multi-layer golf ball..
Acushnet Company

Golf ball

An object of the present invention is to provide a golf ball having an excellent initial velocity when being hit at a head speed of 50 m/sec and an improved initial velocity when being hit at a head speed of 40 m/sec. The present invention provides a golf ball comprising a spherical core and a cover covering the spherical core, wherein the golf ball has a rebound equivalence energy ratio (r40) ranging from 65.50% to 99.0% at a deformation amount of 7%, and a rebound equivalence energy ratio (r50) ranging from 20.0% to 70.0% at a deformation amount of 19%, in a compression test (measurement temperature: −70° c., compression speed: 30 mm/min) applying a load to the golf ball along a radial direction of the golf ball..
Dunlop Sports Co. Ltd.

Golf ball

An object of the present invention is to provide a golf ball having an excellent initial velocity when being hit at a head speed of 50 m/sec and an improved initial velocity when being hit at a head speed of 40 m/sec. The present invention provides a golf ball comprising a spherical core and at least one cover covering the spherical core, wherein the spherical core is formed from a core rubber composition containing (a) a base rubber, (b) a co-crosslinking agent, (c) a crosslinking initiator and (x) a crosslinked rubber powder, and (x) the crosslinked rubber powder is formed from a rubber composition containing (a1) a base rubber, (b1) a co-crosslinking agent, (c1) a crosslinking initiator and (r) a resin component..
Dunlop Sports Co. Ltd.

Golf balls having layers made of silicone elastomers

Multi-layered golf balls having at least one layer made of a foamed silicone composition are provided. Multi-layered golf balls having at least one layer made of non-foamed silicone elastomer composition also are provided.
Acushnet Company

Golf ball compositions

Disclosed herein are multilayer golf balls having a layer with a higher shore c hardness and a lower shore d hardness than another layer.. .
Acushnet Company

Multi-layer golf ball

A multi-layer golf ball includes a core, an intermediate layer surrounding the core, and a cover layer surrounding the intermediate layer. The core defines an outer surface that includes a plurality of polygonal land portions substantially aligned on a common sphere, which has a diameter of between 22 mm and 32 mm.
Nike, Inc.

Golf balls having foam inner core and thermoset outer core layer

Multi-piece golf balls containing a dual-core structure are provided. The core structure includes an inner core (center) comprising a foam composition, preferably foamed polyurethane.
Acushnet Company

Bridgestone Sports Co., Ltd.

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Golf training apparatus

Novel tools and techniques for teaching a player the proper alignment when addressing a golf ball. In one aspect, such tools and techniques provide an alignment aid that allows the player to visualize both the intended target line of the shot as well as the position of the ball relative to the player's stance, allowing the player to easily modify his stance to obtain the proper alignment..
Squared Up Corporation

Golf ball ejection device

A golf ball ejection device includes a generally cylindrical cup liner having an open top end, and a curved bottom end with an elongated hollow channel extending downward therefrom. A golf ball ejector is positioned at the bottom end of the channel and is in communication with a controller and a power source.

Metallized and masked golf ball and method

The present invention is directed to a metallized golf ball possessing a masked section and methods for achieving a metallized golf ball possessing a masked section. The invention provides a golf ball masking stand, which effectively masks a portion of a golf ball, allowing coatings to be applied to the golf ball, while preventing coating of the masked section.

Golf ball having oval dimples

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Taylor Made Golf Company, Inc.

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Apparatus and injection molding a golf ball

The present invention is directed to a retractable pin injection mold system and method of forming a layer of a golf ball using the system. By utilizing a radial gate along with stationary vent pins in the mold, the present invention allows for injection molding of a dimpled outer or inner layer having superior physical properties and more consistent aerodynamics..
Acushnet Company

Night golf system

A night golfing system provides an el wire for outlining features of a golf course, to facilitate night golfing. The system employs a specific color-coding scheme as follows: green—surrounds the surface of the green; yellow—surrounds the surface of the bunker; blue—surrounds or laid out to the side of the water hazard; red—surrounds or laid out to the side of the hazard line; white—used to outline the walking/riding path and the tee box.

Golf training apparatus

A golf training apparatus which provides technical information not inclusive of proper stance in relationship to the ball placement correcting poor foot alignment, speed and angle of proper golf club swing, proper foot placement, proper stance, club control, and targeted site alignment information to the golfer. The apparatus provides a straight line of site to the intended target to be hit by the golf ball projectile and simultaneously indicates proper position of the ball in relationship to the target to be hit, the golfer's feet and stance.

Thermoplastic polyurethane compositions for golf balls

(ii) a crosslinking agent.. .

Golf ball with built-in ic chip

A golf ball of the present invention includes a small-size ic tag including an ic chip and a first antenna directly connected to the ic chip and having a size of 5 mm or less; and a conductive second antenna of which a part is disposed near the ic tag. The ic tag and the second antenna do not need to be in physical contact with each other.
Bridgestone Sports Co., Ltd.

Golf balls having covers made from plasticized thermoplastic compositions containing non-acid polymers

Multi-layered golf balls containing a two layered cover assembly are provided. In one embodiment, the cover assembly includes a relatively soft inner cover and relatively hard outer cover.
Acushnet Company

Golf ball resin composition and golf ball

An object of the present invention is to provide a golf ball resin composition having high resilience and flexibility. The present invention provides a golf ball resin composition, comprising (a) at least one resin component selected from the group consisting of (a-1) a binary copolymer, (a-2) an ionomer resin consisting of a metal ion-neutralized product of a binary copolymer, (a-3) a ternary copolymer, and (a-4) an ionomer resin consisting of a metal ion-neutralized product of a ternary copolymer, (b) a saturated fatty acid, (c) an unsaturated fatty acid, and (d) an unsaturated aliphatic polycarboxylic acid; comprising (b) the saturated fatty acid, (c) the unsaturated fatty acid and (d) the unsaturated aliphatic polycarboxylic acid in a total amount ranging from 80 parts by mass to 200 parts by mass with respect to 100 parts by mass of (a) the resin component; and having a neutralization degree of more than 80 mole %..
Dunlop Sports Co. Ltd.

Golf ball having formed therein hit line for making fade shot or draw shot, and manufacturing method therefor

A golf ball having formed therein a hit line for making a fade shot or a draw shot, and a manufacturing method therefor and, more specifically, to a golf ball having formed therein a hit line for making a fade shot or a draw shot, and a manufacturing method therefor, the golf ball having a balance line, a fade line, and a draw line formed on the outer surface of the golf ball to thus unify a golfer's intended direction and the flying direction of the golf ball if a driving shot or a putting shot is made, thereby enabling putting with a precise hit and enabling a fade shot or a draw shot to be more effectively made. The present invention relates to a golf ball having a plurality of dimples and a bonding line formed on the outer peripheral surface thereof, wherein: a gravity center indication point for indicating the center of gravity of the golf ball is formed on the outer surface of the golf ball; a balance line passing through the gravity center indication point is formed; and a fade line for guiding a fade shot and a draw line for guiding a draw shot are formed on both sides on the basis of the balance line in a state of being spaced apart from each other at regular intervals..
Acegolf Co., Ltd.

Low dimple coverage and low drag golf ball

A golf ball has a lower drag than conventional golf balls due to the arrangement of dimples on the outer surface of the golf ball, which arrangement produces a correspondingly lower percentage of outer surface area that is covered by the dimples. In particular, dimple coverage area may be less than 70%, and more specifically between about 18.6% and about 60.8%, of the outer surface area.
George Washington University