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Golf Ball patents

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 Golf stance guide and golf stance guide container patent thumbnailnew patent Golf stance guide and golf stance guide container
A golf stance guide apparatus is disclosed. The golf stance guide apparatus comprises a side strip, an upper horizontal strip and a lower horizontal strip.

 Golf ball having comma-shaped dimples patent thumbnailnew patent Golf ball having comma-shaped dimples
In a golf ball including dimples having coma shapes, the dimples are arranged such that one comma shaped dimple replaces a circular dimple, two or more comma shaped dimples of different sizes replace one circular dimple, comma shaped dimples having different shapes are arranged in a mixed type arrangement, circular dimples and comma shaped dimples are arranged in a mixed type arrangement, or a discontinuous annular dimple is added to the comma shaped dimples. Thus, a disadvantage of a large circular dimple may be removed and simultaneously a golf ball with stable flight capability and a long flight distance may be provided..
Volvik Inc.


 Golf ball having comma-shaped dimples patent thumbnailnew patent Golf ball having comma-shaped dimples
In a golf ball including dimples having coma shapes, the dimples are arranged such that one comma shaped dimple replaces a circular dimple, two or more comma shaped dimples of different sizes replace one circular dimple, comma shaped dimples having different shapes are arranged in a mixed type arrangement, circular dimples and comma shaped dimples are arranged in a mixed type arrangement, or a discontinuous annular dimple is added to the comma shaped dimples. Thus, a disadvantage of a large circular dimple may be removed and simultaneously a golf ball with stable flight capability and a long flight distance may be provided..
Volvik Inc.


 Method for analyzing golf swing performance relative to a target line patent thumbnailnew patent Method for analyzing golf swing performance relative to a target line
An object of one or more embodiments of the method presented is to provide an analysis of swing features relative to a target line. To accomplish this, a golfer selects a target line, which is an imaginary line connecting the position of a strike object, such as a golf ball, with an intended target.

 Golf ball holder and dispensing device patent thumbnailGolf ball holder and dispensing device
A device for storing and releasing golf balls, comprising a body formed from a single length of rod that can hold a sleeve of golf balls in its storage area. Players simply grasp the balls and pull them out as needed.

 Golf balls having translucent covers formed of aromatic and aliphatic polyurethanes patent thumbnailGolf balls having translucent covers formed of aromatic and aliphatic polyurethanes
Golf balls having multi-layered covers, wherein at least one of the cover layers is substantially transparent, are provided. The cover includes an inner cover layer made of an ionomer composition; an intermediate cover layer made of an aromatic polyurethane composition; and outer cover layer made of an aliphatic polyurethane composition, wherein the total thickness of the multi-layered cover is no greater than 0.110 inches.
Acushnet Company


 Golf ball and  producing the same patent thumbnailGolf ball and producing the same
A golf ball that enhances flight performance is provided. A golf ball according to the present invention includes a spherical core, at least one cover member that covers the core, and a coating layer that covers the cover member configuring the outermost layer.
Dunlop Sports Co. Ltd.


 Golf ball patent thumbnailGolf 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 and  manufacture patent thumbnailGolf ball and manufacture
In a golf ball having a core and a cover of one or more layers, letting the core diameter be d (mm), the cover thickness be t (mm) and the core and ball deflections when compressed under a final load of 1,275 n (130 kgf) from an initial load state of 98 n (10 kgf) be 5 (mm) and b (mm), the following conditions are satisfied: (1) 30≧d/t≧24, (2) 3.9≧e/t≧3.0, and (3) 1.18≧e/b≧1.09. This golf ball provides an excellent flight, performance and a soft feel at impact when used by golfers whose head speed is not very fast, such as senior golfers and women golfers.
Bridgestone Sports Co., Ltd.


 Three-cover-layer golf ball comprising intermediate layer including a plasticized polyester composition patent thumbnailThree-cover-layer golf ball comprising intermediate layer including a plasticized polyester composition
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


Compositions containing transparent polyamides for use in making golf balls


Multi-layered golf balls having at least one layer made of a polyamide composition containing a transparent polyamide polymer are provided. The transparent polyamide may be blended with other transparent or non-transparent polyamides.
Acushnet Company


Golf ball


A golf ball includes a core, an ionomer layer enclosing the core, a polyisocyanate interlayer enclosing the ionomer layer, and a thermoplastic polyurethane cover layer enclosing the polyisocyanate interlayer. The ionomer layer is physically bonded to the polyisocyanate interlayer to form a physical bonding interface therebetween, and the polyisocyanate interlayer is chemically bonded to the thermoplastic polyurethane cover layer to form a chemical bonding interface therebetween..
Great Eastern Resins Industrial Co., Ltd.


Device for training the swing addressed to golf players


A device for training a golf swing addressed to a golfer having a supporting element on which a vertical rigid rod is placed. The rod is connected to a horizontal rigid rod which is connected to a terminal supporting element on which the golfer keeps his forehead continuously in touch.

Golf club head with top line insert


A golf club head having a low-density interchangeable insert located in a top portion thereof. The interchangeable insert may be only in the top line of the club head or extend from the heel around the toe and optionally be visible from above when the club is at address.
Cobra Golf Incorporated


Multi-layer golf ball


A multi-layer golf ball that provides a consistent feel when struck with different golf clubs has a core center having a diameter d1 and a hardness h1; a first intermediate layer outward from and surrounding the core center; a second intermediate layer outward from and surrounding the first intermediate layer having a diameter d3 and a hardness h3; and a cover outward from and surrounding the second intermediate layer; wherein the ratio of h3 to d3 is at least about 94% of the ratio of h1 to d1 (h3/d3≧0.94 h1/d1).. .
Nike, Inc.


Golf balls having foam center and thermoset outer core layer with hardness gradients


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


Golf-ball 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


Golf training apparatus


Golf training apparatus and method for golf training using a golf training apparatus. The golf training apparatus comprises a target member having a substantially flat form extending across an area larger than a regulation-sized golf hole area, and a target opening formed in the target member.

Multi-layer golf ball


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


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Golf balls comprising medium hardness gradient core


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


Golf balls with covers of high acid ionomers


Disclosed is a golf ball comprising a cover prepared from an ionomer composition comprising a high acid ionomer comprising about 15 to about 30 weight % of copolymerized units of a c3-8 α,β-ethylenically unsaturated carboxylic acid and about 3 to about 13 weight % of copolymerized units of vinyl acetate, alkyl acrylate or alkyl methacrylate.. .
E. I. Du Pont De Nemours And Company


Golf hole marker having a self-righting structure


A golf hole marker, having a self-righting structure, includes a base, a weighting material received in the base, a telescopic pole and a flag. The base includes a top shell and a bottom shell.

Golf ball


Provided is a golf ball is excellent in flight distance performance, approach performance, and feel at impact. A ball 2 includes a core 4, a mid layer 6, and a cover 8.
Dunlop Sports Co. Ltd.


Ez ball golf ball receptacle and dispenser


A golf ball dispensing system comprising a bucket of golf balls wherein the bucket has an internal incline and a hole covered by a hingedly mounted l-shaped door so that when the door is tapped by a putter one golf ball is allowed to enter the inside of the l of l-shaped door, and the l-shaped door pivots at a hinge, releasing the ball from the inside of l to the outside of the bucket.. .

Multi-layer core golf ball


Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a zero or positive hardness gradient center that is hard relative to an intermediate core layer..
Acushnet Company


Golf bag having a removable golf bag


A golf bag system is described that can include a main golf bag and a removable golf bag. The main golf bag and removable golf bag can be releasably coupled together for transporting as a single unit (e.g., golf bag system) or as two separate units (e.g., main golf bag and removable golf bag).

Multi-layer golf ball


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


Golf swing practice system with virtual divot generation


A golf practice mat includes an impact sensor disposed in a vicinity bounding the location of where a golf ball would be placed for striking. The golf practice mat may also include, for example, a “crosshair” target imprint that is disposed on a golf club impact sensor portion of the practice surface and indicates the point/line of contact that the club face should hit the ground after the ball has been struck with the club head in a descending blow.

Golfing tee


A golf tee is disclosed that provides stability and promotes less spin on a struck golf ball. The tee may be beneficial for use on mats at a driving range.

Method for making a golf ball having a core containing fiber flock


A method for making a golf ball having fiber flock bonded to a core is provided. The fiber flock preferably has high color vibrancy to provide high quality aesthetics.
Acushnet Company


Golf ball manufacturing method


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

Multi-layer golf ball


Multi-piece golf balls having a multi-layered solid core and multi-layered cover are provided.. .
Acushnet 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 three layers, including at least one thermoset layer and at least one thermoplastic layer.
Acushnet Company


Multi-layer golf ball


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


Mobile body measurement device and measurement method


A single antenna has directionality, transmits a transmission wave toward a golf ball on the basis of a supplied transmission signal, receives a reflected wave that is reflected off the golf ball, and generates a reception signal. A doppler sensor generates as time series data a doppler signal having a doppler frequency.
The Yokohama Rubber Co., Ltd.


Performance based golf scoring system


An automated, replicable, process-based original concept that may provide a self-validating, defined quantification of the relevance of one or more active physical efforts performed by a real-life golfer, the real-life golfer engaging in at least one real-life play on a golf ball on a golf course with a predefined traditional point value for certain plays.. .
Big Play Scoring, Llc


Golf game


A golf game includes a centrally located playing structure from which players may hit golf balls towards any number of greens that are spaced at various distances from the playing structure and are within a “fairway”. Once the golfers all hit their golf balls toward this first green, the playing structure rotates on a turntable to position the golfers (standing at their tee box area) towards a second fairway where each can then hit another golf ball(s) towards any number of greens located in this second fairway.

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.

Golf ball


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


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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.


Low profile driver type golf club head


A driver type golf club head used to strike a golf ball on a tee or lying on the ground having outer dimensions forming a large footprint and a low profile configuration. The club head is further defined as having a breadth to vertical height ratio of at least 2 to 1, the breadth being measured between the striking face and rear surface and the height being measured between the top crown and the bottom sole.

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


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


Golf ball incorporating steep hardness gradient and high compression thermoset rubber core


A golf ball comprising a core comprising at least one layer that consists of a mixture of a plurality of synthetic flocks and a thermoset rubber composition. The plurality of synthetic flocks has a melting temperature that is greater than a mixing temperature at which the mixture is formed.
Acushnet Company


Golf gaming systems and methods


The present inventions relate to golf gaming systems and methods for evaluating a golfer's performance and facilitating golf gaming and competition. Specifically, the present invention provides methods, locations, installations, devices and systems adapted and arranged for observing, processing, analyzing and communicating data and images of individual or group golf gaming performance with respect to golf balls in play in three dimensional environments..
Lynqs, Inc.


Portable launch monitor


A launch monitor system and method for measuring flight characteristics of a golf ball are disclosed. The launch monitor system comprises a support structure, a smart device positioned to capture one or more images of the golf ball, a flash source, and an application configured to execute on the smart device.
Acushnet Company


Golf ball material and manufacture


A golf ball material includes specific amounts of two base resins: (a) an olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester ternary copolymer, or a metal neutralization product thereof, having a specific weight-average molecular weight, acid content and ester content, and (b) an olefin-acrylic acid random binary copolymer, or a metal neutralization product thereof, having a specific weight-average molecular weight and acid content, and additionally includes (c) a basic inorganic metal compound, and (d) an anionic surfactant. Resins a and b have specific melt flow rates (mfr) and a specific mfr difference therebetween.

Foot strap for picking up a golf ball


A foot strap is provided for use for picking up a golf ball from ground and placing it on a tee. The foot strap comprises a belt including a fastening unit for fastening two end portions of the belt, and a socket attached to the belt and having an inner surface configured to fit around part of the golf ball for receiving and holding the golf bait with support of a golf club..

Automatic golf ball washer


An automatic golf ball washer includes a substantially enclosed body that can receive one or more golf balls onto a rotary carriage that spins the golf ball within a supply of washing fluid and contacts the moving golf ball with stationary brushes within the body.. .

Multi-layer golf ball


Multi-layer golf balls comprising a single- or dual-layer core, an intermediate layer, and an outer cover layer are disclosed. The intermediate layer is formed from a thermoplastic elastomer composition and has a surface hardness which is greater than the center hardness of the core and less than the outer surface hardness of the core.

Golf ball


An object of the present invention is to provide a golf ball traveling a great flight distance on driver shots and an excellent shot feeling. The present invention provides a golf ball comprising a spherical core, an intermediate layer covering the spherical core, and a cover covering the intermediate layer, wherein a material hardness (hm) of a resin composition constituting the intermediate layer ranges from 65 to 80 in shore d hardness, a material hardness (hc) of a resin composition constituting the cover ranges from 57 to 72 in shore d hardness, a hardness difference (hm−hc) between the material hardness (hm) and the material hardness (hc) is more than 0, and the intermediate layer has a surface hardness satisfying a hardness difference (hmsc−hmsd) between a hardness thereof shown in shore c hardness (hmsc) and a hardness thereof shown in shore d hardness (hmsd) of 27 or less..

Golf ball


An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, wherein a difference (hx+1−hx−1) between a hardness (hx+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (hx−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in shore c hardness, a surface hardness (hx+y) of the spherical core is more than 70 in shore c hardness, an angle α of a hardness gradient of the inner layer is 0° or more, and a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more..

Multi-piece golf ball


An object of the present invention is to provide a golf ball showing a small ratio of a spin rate on driver shots to a spin rate on approach shots. The present invention provides a multi-piece golf ball comprising a spherical center, three or more envelope layers covering the spherical center, and a cover covering the envelope layers, wherein adjacent two envelope layers are formed so as to include a region composed of elements having a hitting deformation ratio of 30% or more, the hitting deformation ratio being obtained by analyzing a specified golf ball model by a finite element method; and the envelope layer which is radially outwardly positioned of the adjacent two envelope layers has a lowest hardness among all the envelope layers..

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.. .

Golf ball


An object of the present invention is to provide a golf ball showing excellent shot feeling and stain resistance. 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 a base resin constituting the paint film includes a polyurethane obtained by a reaction between a polyol composition and a polyisocyanate composition, a molar ratio (nco/oh) of an isocyanate group (nco group) in the polyisocyanate composition to a hydroxyl group (oh group) in the polyol composition is 0.6 or more, and the paint film has an elastic modulus of 300 mpa or less..

Golf ball and manufacturing method thereof


A golf ball of one aspect of the present invention includes a spherical core, one or more cover members to cover the core, and a coating layer to coat a cover member configuring an outermost layer of the one or more cover members. A plurality of dimples is formed in the cover member.

Golf ball resin composition and golf ball


A golf ball resin composition contains a base resin for which, in dynamic viscoelasticity measurement, the storage modulus of the base resin measured at 23° c., 15 hz and 1.0% strain, and tan δ determined under the same conditions, satisfy specific values; and for which the storage modulus of the base resin measured at 23° c., 15 hz and 10% strain, and tan δ determined under the same conditions, satisfy specific values. By using this resin composition as a golf ball cover material, the force delivered to the ball while the ball and the clubface are in contact from impact to follow-through is more easily felt, facilitating distance control of the ball.

Golf balls with oxygen and moisture blocking protective paint layer


The present invention relates to compositions for golf equipment that can be applied as a thin paint layer to block oxygen and moisture from underlying structural layers. The compositions include a polymer component present in a resin system, a stabilizing component, and porous particles..

Golf ball


[where mp, minm, moum, and mc represent a 10% elastic modulus (kgf/cm2) of the paint film, inner intermediate layer, outer intermediate layer and cover, respectively; tp, tinm, toum, and tc represent a thicknesses (mm) of the paint film, inner intermediate layer, outer intermediate layer and cover, respectively; and x represents a molar ratio (nco/oh) of a nco group in the polyisocyanate composition to a oh group in the polyol composition.].. .

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Golf ball


An object of the present invention is to provide a golf ball showing both striking a good balance between the visibility and the weather resistance. The present invention provides a golf ball comprising a golf ball body and two or more paint film layers formed on a surface of the golf ball body, wherein the paint film layers comprises a first paint film layer containing an inorganic fluorescent agent but substantially not containing an ultraviolet absorber, and a second paint film layer containing an ultraviolet absorber but substantially not containing an inorganic fluorescent agent; and the second paint film layer is disposed inside the first paint film layer..

Golf ball


A golf ball has a large number of dimples 10 on a surface thereof. The dimples 10 include a plurality of small dimples 10s each having an area of less than 8.0 mm2, and a plurality of large dimples 10l each having an area of equal to or greater than 8.0 mm2.

Golf ball and manufacturing method thereof


−1.5×fa+0.8≦ra≦−1.5×fa+1.8.. .

Golf ball


The present invention is a golf ball with a spherical core and a cover with one or more than two layers which covers the core, wherein the core includes two layers including an inner core having a spherical shape with an area formed in the center thereof, and an outer core covering the inner core, wherein value a is equal to or larger than 10.5 and value c is equal to or smaller than 3.7, wherein the value a is the deformation amount (mm) of the ball when the initial load is 98 n (10 kgf) and the ending load is 5880 n (600 kgf), and the value c is the deformation amount (mm) of the ball when the initial load is 98 n (10 kgf) and the ending load is 1275 n (130 kgf). The area is filled with at least one substance being different from the material of the inner core..

Golf ball


G<0.0032·nl+0.26  (ii).. .

Golf ball


A golf ball includes plural dimples formed on a surface thereof and plural depressed or protruded portions spaced apart from each other and arranged along an outer periphery of at least one of the plural dimples. The plural depressed or protruded portions each has, as a part of a contour thereof, a shape substantially similar to a part of a contour of the dimple surrounded with the plural depressed or protruded portions.

Golf ball dimple surface


golf ball dimples having a surface defined by a mode, or a weighted superposition of multiple modes, of oscillation of a circular membrane are disclosed.. .

Golf ball dimple surface


golf ball dimples having a surface defined by a mode, or a weighted superposition of multiple modes, of oscillation of an n-sided polygon shaped membrane are disclosed.. .

Golf ball resin composition and golf ball


An object of the present invention is to provide a golf ball resin composition excellent in resilience. Another object of the present invention is to provide a golf ball excellent in rebound resilience and shot feeling.

Resin composition for golf balls


A golf ball resin composition includes (a) (i) an olefin-c3-8 α,β-unsaturated carboxylic acid copolymer or a metal neutralization product thereof and/or (ii) an olefin-c3-8 α,β-unsaturated carboxylic acid-c3-8 α,β-unsaturated carboxylic acid ester terpolymer or a metal neutralization product thereof; (b) isocyanuric acid or a haloisocyanuric acid; and (c) a fatty acid or a fatty acid metal salt. When this resin composition is used as a cover material, the paint film adhesion between the cover material and various types of paint, including urethane-based paints, is excellent, enabling various properties of the golf ball to be improved..

Golf chipping training kit


A golf chipping training kit that is inexpensive to produce, is easy to transport, and which provides all items necessary for a user to practice or receive training on their golf chip shots aside from the user's golf clubs is provided, which may be used by the user to practice their golf chip shots on their own or to receiving training on their golf chip shots from an instructor. The preferred embodiment of the golf chipping training kit includes a storage bag for storing the items of the kit, a plurality of golf balls, and an adjustable target..

Golf tee with support prongs


A golf tee includes: an elongate shaft having opposed upper and lower ends, the lower end configured to be inserted into an underlying surface; and a support cup that is configured to support a golf ball from beneath and that merges with the shaft. The support cup has a base portion and further includes at least three arcuate support prongs projecting upwardly from the base portion.

Grip aid for golf club


If this grip aid is used, the grip aid body may be easily mounted to the golf club grip by using the first guide member, and a gripping posture of the hand gripping the grip aid body may be consistently maintained while swinging the golf club, thereby improving accuracy of swinging and increasing a driving distance of a golf ball.. .

Self-balancing golf club with rearward leaning shaft


A self-balancing golf club with rearward lean. The self-balancing golf putter includes a club head.

Method of making a golf ball core


A method and system for making a golf ball core is disclosed. The method may generally include forming a golf ball core out of a raw core material.

Golf ball and manufacture


In a golf ball having a core of at least one layer and a cover of at least one layer, at least one core or cover layer contains a butyl rubber ionomer. A method of manufacturing golf balls having a core of at least one layer and a cover of at least one layer includes the steps of preparing a treatment solution of butyl rubber ionomer dissolved in a solvent, applying the treatment solution to at least one layer of the golf ball, and covering the treated layer with, as an outer layer adjoining thereto, a rubber layer, a resin layer or a paint layer.

Multi-layer golf ball


Multi-layer golf balls comprising a single- or dual-layer core, an intermediate layer, and an outer cover layer are disclosed. The intermediate layer is formed from a highly neutralized polymer composition and has a surface hardness which is greater than the center hardness of the core and less than the outer surface hardness of the core.

Multi-piece solid golf ball


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.. .

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.

Golf ball compositions


Disclosed herein are heterogeneous golf ball compositions comprising a matrix formed from a thermosetting or thermoplastic polymer composition and discrete particles dispersed within the matrix, and to the use of such heterogeneous compositions to form at least one core layer in multi-layer core golf balls.. .

Golf ball dimple profile


golf ball dimples having a cross-sectional profile shape defined by the product of a base profile and one or more weighting functions are disclosed.. .

Golf ball dimple profile


golf ball dimples having a cross-sectional profile shape defined by the product of a base profile and one or more weighting functions are disclosed.. .

Golf ball dimple profile


golf ball dimples having a cross-sectional profile shape defined by the product of a base profile and one or more weighting functions are disclosed.. .

Portable launch monitor


A launch monitor system and method for measuring flight characteristics of a golf ball are disclosed. The launch monitor system comprises a support structure, a smart device positioned to capture one or more images of the golf ball, a flash source, and an application configured to execute on the smart device.
Acushnet Company


Golf swing self evaluation kit and method


The kit includes an elongated stick designed to extend longitudinally over the golfer's two shoulders and a golf ball elevational tool that includes a clip that attaches to the front edge of the brim on a hat or visor worn by the golfer. Attached to the clip is a length adjustable, lightweight string that attaches to a regulation size golf ball.

Golf tee


The present invention provides golf tees that are configured to exert minimal resistance or friction on a golf ball, thereby allowing the golf ball to travel further. The tees of the invention are also less subject to deformation or breakage and are configured to embed in the ground in front of the tee-off rather than bounce in a random direction..

Golf club with insert.


A golf club with an insert located in an ideal position to strike a golf ball. The head of the golf club and the insert have a built-in locking mechanism such that the insert is removable; the golfer can replace it with an insert of a different material, thereby changing the “feel” of the golf club through changes in the hardness/softness and density of the material from which the insert is made.

Golf ball carrying and alignment tool


A golf ball carrying and alignment tool includes an elongated member having a generally circular aperture disposed along the bottom end. A slit traverses the bottom end and engages the aperture.
Sandgroup International Ltd.


Golf ball and manufacturing same


The present invention relates to a golf ball and a method for manufacturing same and may provide a golf ball having improved hitting sensation and the flight distance by applying an existing manufacturing process without changes even while changing the material for the golf ball or even by applying a shortened manufacturing process.. .
Qingdao Fantom Golf Co., Ltd


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.


Golf ball incorporating tie layer between differing adjacent layers


A golf ball having improved adhesion comprising: a core; a first layer surrounding the core; a tie layer surrounding at least a portion of an outer surface of the first layer and consisting of a mixture of a polyfunctional aziridine compound and a solvent; and a second layer that is different than the first layer formed about the tie layer. The first layer may consist of a non-urethane composition whereas the second layer consists of at least one urethane composition.
Acushnet Company


Carboxylic branched chain-cutting agent for golf ball-covering ionomer resin, golf ball coating composition, and manufacturing golf ball


The present invention relates to a carboxylic branched chain-cutting agent for a golf ball-covering ionomer resin, a golf ball coating composition, and a method for manufacturing a golf ball. The present invention can provide a coating composition containing within an appropriate range, a specific compound for use as a carboxylic branched chain-cutting agent for a golf ball-covering ionomer resin, and thus can provide a golf ball on which a bridge is formed between a golf ball covering resin and a coating resin.
Qingdao Fantom Golf Co., Ltd


Dimple patterns with surface texture for golf balls


The present invention provides a golf ball having an outer surface comprising a plurality of dimples covering greater than 70 percent of the outer surface, wherein at least 20 percent of the dimples incorporate directional surface texturing therein. The directional surface texturing preferably comprises substantially parallel channels or protrusions formed within the dimples..
Acushnet Company


Securing systems for gloves or other objects


Apparel, sporting equipment, and other items include magnetic securing systems (e.g., for holding a ball marker on a golf glove. Housings for such systems include a mount area defining a base surface that includes a magnet or is made from a magnetic material.
Nike, Inc.


System for collecting data for golf


A system (1) for collecting data for golf, includes: a first detection system (11) which includes a portable sensor (15, 37) and is suitable for generating a first determination signal (19, 41) representing a time likely to correspond to the hitting of a golf ball; a second detection system (12) for determining whether a sound is likely to correspond to the hitting of a golf ball (4) by a golf club (3) used by a golfer (2), and for generating a second determination signal (25) representing a time that is likely to correspond to the hitting of a golf ball; a processing means (20) for receiving the first and second determination signals (19, 41, 25), comparing same, determining an event (27) of the golf club (3) hitting a golf ball (4) in the event of a positive result from the comparison, and storing the event (27) in a memory unit (28).. .
Ul Invest S.à.r.l.


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


Color golf ball constructions having at least one contrasting and distinct color appearance formed in a surface


A golf ball of the invention has an overall color appearance formed from the following steps. A cover material for forming a golf ball cover is provided having a first color appearance that contributes to the overall color appearance.
Acushnet Company


Short game analysis system


The present invention generally relates to lightweight, portable robot for analyzing golf balls for short game performance attributes. The preferred robot is specifically designed to be lightweight and portable and to be able to hit a golf ball off of the ground or a mat that simulates the ground such that realistic short game performance of clubs and balls can be evaluated..
Acushnet Company


Short game analysis system


The present invention generally relates to lightweight, portable robot for analyzing golf balls for short game performance attributes. The preferred robot is specifically designed to be lightweight and portable and to be able to hit a golf ball off of the ground or a mat that simulates the ground such that realistic short game performance can be evaluated..
Acushnet Company


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 formed thereon, the core is formed primarily of a base rubber, the envelope layer and the intermediate layer are formed primarily of synthetic resin materials, and the cover layer is formed primarily of a urethane material. The relationships between, respectively, the surface hardnesses of the envelope layer-encased sphere and the ball, the thicknesses of the intermediate layer and the cover layer, the deflections of the core and the ball, and the initial velocities of the core and various layer-encased spheres of the ball each satisfy specific conditions.
Bridgestone Sports Co., Ltd.


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Golf balls having foam centers with non-uniform core structures


Golf balls having a solid multi-layered core and a cover are provided. The ball contains an inner core made of a foam composition, an intermediate core layer, and surrounding outer core layer.
Acushnet Company


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.


Multi-layer golf ball


A multi-layer golf ball includes a core formed from an ionomer, an intermediate layer surrounding the core, and a cover surrounding the intermediate layer. The core has a material hardness measured on the jis-c scale of from about 34 to about 70, and has an outer surface that includes a plurality of land portions aligned on a common sphere, and a plurality of grooves separating the respective land portions and extending radially inward from the sphere.
Nike, Inc.




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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