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Golf Ball patents

      

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




new patent 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


new patent 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


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

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

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.

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.

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

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

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.

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

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

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.

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.

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.



Golf Ball topics:
  • Magnetic Material
  • Hydrophobic Coating
  • Tetrafluoro
  • Superhydrophobic Coating
  • Polyhedron
  • Simulation
  • Carboxylic Acid
  • Elastomeric Material
  • Acid Anhydride
  • Fatty Acid Amide
  • Fatty Acid
  • Heterogeneous
  • Tracking System
  • Ion Source
  • Carbon Fiber


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