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Golf Ball patents

      

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




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

 Golf ball patent thumbnailnew patent 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 patent thumbnailnew patent 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.. .

new patent

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.

new patent

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.

new patent

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 tee and beverage closure combination

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

Golf club head having optimized ball speed to ct relationship

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

Medium gradient multi-piece urethane covered golf ball

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

Golf ball having medium positive gradient quotient and high trans content

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

Golf ball having medium positive gradient quotient and low trans content

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

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

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

Method for evaluating golf ball dimple effects

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

Golf balls comprising a plasticized polyurethane layer

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

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

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

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

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

Dimple patterns for golf balls

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

Dimple patterns for golf balls

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

Impact point estimation apparatus

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

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

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

Golf swing analysis apparatus and method

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

Club heads with varying impact responses and related methods

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

Golf ball manufacturing method

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

Golf balls having a center with surrounding foam outer core layer

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

Multi-layer core golf ball

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

Multi-layer core golf ball

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

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

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

Golf balls incorporating crosslinked polymer compositions

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

Golf ball parting line configuration and mold

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

Golf club heads

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

Golf club head having surface features that influence golf ball spin

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

Multi-layer golf ball

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

Golf ball

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

Dimple patterns for golf balls

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

Golf swing analysis apparatus and method

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

Golf club alignment device

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

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

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

Method and simulated golf

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

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

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

Golf tee with spark induction coating and improving golf performance

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

Multi-piece solid golf ball

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

Golf ball

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

Golf vision discipline training system and method

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

Multi-layer core golf ball

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

Golf balls having multi-layered foam cores with structural inserts

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

Golf balls incorporating regenerating-type multi-functional antioxidants

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

Golf balls having a foam center

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

Dimple patterns for golf balls

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

Dimple patterns for golf balls

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

Golf-swing monitoring system

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

Golf ball resin composition and golf ball

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

Direction indicating device for putter

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

Golf putter head with visual alignment aid and methods of manufacture

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

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

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

Golf ball

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

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

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

Golf ball having medium positive gradient quotient

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

Golf ball

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

Illuminated golf

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

Golf ball with rfid inlay in a molded impression

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

After market metal golf club grip

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

Golf club configured for multiple adjustability

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

Golf club head

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

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

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

Golf ball compositions

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

Golf ball

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

Golf ball

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

Golf balls having layers made of silicone elastomers

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

Golf ball compositions

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

Multi-layer golf ball

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

Golf balls having foam inner core and thermoset outer core layer

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

Golf training apparatus

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

Golf ball ejection device

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

Metallized and masked golf ball and method

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

Golf ball having oval dimples

Dla≧dsa  (2).. .

Apparatus and injection molding a golf ball

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

Night golf system

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

Golf training apparatus

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

Thermoplastic polyurethane compositions for golf balls

(ii) a crosslinking agent.. .

Golf ball with built-in ic chip

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

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

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

Golf ball resin composition and golf ball

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

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

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

Low dimple coverage and low drag golf ball

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

Golf putting pad and game

In some embodiments, a golf putting pad may include a substrate, a boundary area extending about a periphery of the substrate, and a putting area extending over a portion of the substrate inside of the boundary area. The putting area may include a plurality of holes, each of which may be sized to receive a golf ball.

Device and launching a projectile across a range

A device and method for launching a projectile, such as a golf ball, across a range. The device enables a golf ball to be launched across a golf course with greater control than is possible with a traditional golf club.
Symtar Ventures

Head profile for a golf club iron

The head of a golf iron having an improved profile that enables a golfer to accurately align the club head with a golf ball so that the club head will strike the ball at the sweet spot located on the club face. The club head has a top edge which runs above the club face and includes first and second portions that extend in first and second directions.

Golf ball and manufacture

In a golf ball having a core and a cover, the core is formed of a rubber composition, has center and surface portions which are unfoamed regions and has an intermediate portion containing a foamed region. The core is produced by charging the rubber composition, which contains a blowing agent, into a first curing mold and curing under given conditions, then removing the molded rubber material in a semi-cured state from the first mold, transferring the semi-cured material to a second curing mold and curing under given conditions.
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 ball incorporating at least one layer formed from a millable polyurethane rubber composition

golf ball comprising at least one layer having a shore d material hardness of from about 10 to about 55 and consisting of a millable polyurethane rubber composition comprising rubber consisting of: at least one polyether-based millable polyurethane rubber; at least one polyester-based millable polyurethane rubber; at least one polycaprolactone-based millable polyurethane rubber; or combinations thereof; wherein the millable polyurethane rubber composition is vulcanized. The rubber may be mixed/compounded with additional non-rubber ingredients such as at least one cross linking agent, peroxide initiator, filler, antioxidant, processing agent, light stabilizer, colorant, adhesion promotor, isocyanate and/or polyol, or combinations thereof.
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

Wherein h is a deformation amount, which is expressed by a compressive deformation amount of the golf ball; s is a virtual plane area, which is a surface area of the golf ball determined supposing that no dimple exists on the surface of the golf ball; and ps7 is a pressurized area, which is an area of the golf ball contacting a plane when a load of 6864 n is applied to the golf ball. The bottom of the dimple includes a center protruding portion with a curved shape protruding toward an outside of the golf ball..

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 selection using mobile computer device with camera

There is provided is a method and computer program product for selecting an appropriate golf ball for a subject by using a mobile computer device with a camera. The method includes: inputting information concerning hitting skill of the subject to the mobile computer device; performing a calibration of a distance and/or direction between two points in a screen of the mobile computer for shooting a moving image; shooting a moving image by the camera of the mobile computer device when the subject hits a golf ball by a golf club; determining a head speed of the golf club before an impact of the club and the ball from the shot moving image based on the calibration; computing a golf ball product having a suitable performance for the subject from the input information concerning hitting skill and the determined head speed, based on a database comprising data of information concerning hitting skills of players, data of head speeds before impact of club and ball, and data of performances of golf ball products which are correlated with each other; and displaying the computed recommended golf ball product on the mobile computer device..
Bridgestone Sports Co., Ltd.

Golf club head with sound damping

The present disclosure concerns embodiments of a badge and golf club head having a badge therein that can dampen the impact sound made when a hitting surface (a.k.a., face) of the golf club head impacts a golf ball. In one embodiment, a golf club head includes: a face portion surrounded by a topline portion, a toe portion, a sole portion and a heel portion, the face portion having a front striking surface and a back surface; and a badge coupled to the back surface of the face portion, the badge including a planar main body portion and at least one structural member extending outwardly from the main body portion, wherein the at least one structural member includes a lower portion and an upper portion disposed between the topline portion and lower portion, and wherein the at least one structural member has a maximum height, above the main body portion, at the lower portion and a minimum height at the upper portion..
Taylor Made Golf Company, Inc.

Apparatus and recovering golf balls

An apparatus and method for recovering golf balls is provided. The apparatus includes a hull for floating on the water, a motor mounted to the hull, a pumping system, pressure lines to deliver high pressure water and a return line.
Castaway Golf Technologies Inc.

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

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

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

Golf ball

[solution] a golf ball includes a spherical core, a mid layer, an inner cover, and an outer cover. A hardness hm of the mid layer is greater than a hardness hinc of the inner cover which is greater than a hardness houc of the outer cover.

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 balls having at least two core layers formed from hnp compositions

The present invention is directed to golf balls consisting of a multi-layer core and a cover. The multi-layer core includes at least one layer formed from a relatively soft or low modulus hnp composition and at least one layer formed from a relatively hard or high modulus hnp composition..
Acushnet Company

Roll quality of putting green

In some embodiments, a system may include a golf ball having at least one accelerometer configured to generate signals proportional to acceleration along three axes and a microprocessor coupled to the accelerometer. The microprocessor may be configured to correlate the signals to produce a roll data file for each roll event of a plurality of roll events.

Radar based tracking system for golf driving range

A golf ball range target system that includes a golf target, a golf ball dispenser, at least one golf ball, a target sensor, a tracking module, and a client computer is described. The golf target has a known geographic location and includes at least one golf target area.
Edge Technology

Golf ball storage and heating assembly

A golf ball storage and heating assembly includes a housing has a top wall, a bottom wall and a peripheral wall extending therebetween and the top wall is substantially open to access an interior of the housing. A support is positioned within the housing and a mesh member is positioned upon the support.

Multi-piece solid golf ball

In a golf ball having a core, a cover and an intermediate layer therebetween, the ball and a sphere consisting of the core encased by the intermediate layer have surface hardnesses which satisfy a specific relationship, the intermediate layer and the cover have thicknesses which satisfy a specific relationship, and (initial velocity of intermediate layer-encased sphere)/(initial velocity of core)≧0.995. Also, the core, the intermediate layer-encased sphere and the ball have respective deflections under given compression conditions which satisfy a specific condition.
Bridgestone Sports Co., Ltd.

Golf ball resin composition and golf ball

An object of the present invention is to provide a golf ball resin composition having a high resilience, flexibility and high fluidity. The present invention provides a golf ball resin composition having a bending stiffness (m21-30) ranging from 600 kgf/cm2 to 5,000 kgf/cm2 within a bending angle from 21° to 30°, a rebound resilience (r) of 50% or more, a slab hardness (shore d) ranging from 40 to 65, a melt flow rate (190° c., 2.16 kgf) of 1.0 g/10 min or more, and a resilience index value ((m21-30)0.5×(r/100)3) of 8.5 or more..
Dunlop Sports Co. Ltd.

Golfer classification method, golfer classification system and golf club selection method

A golfer classification method in which, in order to classify a golfer based on his/her swing behavior, a first head speed hs1 of a short iron when the golfer hits a golf ball with the short iron is measured; a second head speed hs2 and a blow angle of a long iron when the golfer hits a golf ball with the long iron are measured; the head speed ratio hs2/hs1 is calculated; by comparing the blow angle with a first threshold, the golfer is classified into a down blow group or a non down blow group; and by comparing the head speed ratio hs2/hs1 with a second threshold, the golfer classified into the down blow group is further classified into a first down blow group or a second down blow group. A golf club selection method in which, for the golfer classified by the golfer classification method, a suitable golf club is selected..
Dunlop Sports Co. Ltd.

Golf shot detection

A wearable computing device comprises one or more motion sensors, a first circuit, and a second circuit. The one or more motion sensors are configured to measure swing motion.
Microsoft Technology Licensing, Llc

Multi-piece solid golf ball

In a golf ball having a core, a cover and an intermediate layer therebetween, the ball and a sphere consisting of the core encased by the intermediate layer 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 center, at positions 5 mm, 10 mm and 15 mm from the core center and at the core surface satisfy specific relationships. This ball, when played by mid- and high-level amateur golfers, achieves a good distance on driver shots, has a soft feel at impact and maintains the spin performance at a high level on approach shots..
Bridgestone 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

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 trajectory prediction method, golf ball trajectory prediction apparatus, and golf club selection method

A golf ball trajectory prediction method that can predict the trajectory of a golf ball with high accuracy is provided. The golf ball trajectory prediction method includes: a swing measurement step of measuring a golfer's swing using a test golf club; a head behavior prediction step of predicting a behavior of a head of a target golf club when using the target golf club, with a measurement value of the swing measured in the swing measurement step as input; a ball initial behavior calculation step of calculating an initial behavior of a golf ball after colliding with the head of the golf club, based on the behavior of the head predicted in the head behavior prediction step; and a ball trajectory prediction step of predicting a trajectory of the golf ball, from the initial behavior of the golf ball calculated in the ball initial behavior calculation step..
Bridgestone Sports Co., Ltd.

Injection molded golf ball layer with improved durability & methods of making same

The present invention is directed to a golf ball layer formed from an injection molding process using a retractable pin injection mold. The injection molding process includes retracting pins beyond the molding surface of the mold at the end of the injection cycle to form surface protrusions at the various pin locations and removing the protrusions in a post molding process.
Acushnet 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

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

A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball; an elongated channel extending across a portion of the sole, wherein the sole has an elongated channel recessed from adjacent surfaces of the sole that has a plurality of troughs within the channel to help improve the efficiency of the impact with a golf ball.. .
Nike, Inc.

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

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

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.. .
Nike, Inc.

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.. .
Nike, Inc.

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

A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball; an elongated channel extending across a portion of the sole, wherein the sole the sole has an elongated channel recessed from adjacent surfaces. The elongated channel is made of a plurality of materials such that the materials making up the elongated channel have a lower modulus of elasticity than the modulus of elasticity of the material remainder of the sole.
Nike, Inc.

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

A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball; an elongated channel extending across a portion of the sole, wherein the sole is made of a plurality of materials where one material has a lower modulus of elasticity than the remainder of the sole. The sole has an elongated channel recessed from adjacent surfaces of the sole and may be made entirely or partially from a material with a lower modulus of material than the remainder of the sole.
Nike, Inc.

Methods for making golf ball covers based on liquid ethylene-propylene diene copolymer rubbers and resulting balls

Methods for making multi-piece golf balls comprising at least one component made of ethylene-propylene diene copolymer (epdm) rubber and the resulting balls are provided. The multi-piece golf ball includes a cover, preferably a dual-cover having inner and outer cover layers.
Acushnet Company

Polyester-based thermoplastic elastomers containing plasticizers for making golf balls

Multi-layered golf balls having at least one layer made of a polyester composition containing a polyester thermoplastic elastomer and plasticizer are provided. The plasticizers help reduce the glass transition temperature (tg) of the composition and various plasticizers may be used.
Acushnet Company

Multilayer golf ball

Multilayer golf balls comprising a thermoplastic or thermoset cover disposed about four or more thermoplastic layers are disclosed.. .
Acushnet Company

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

Cores made from thermoset and plasticized thermoplastic materials for golf balls

Multi-layered golf balls containing a two or three-layered core assembly are provided. In one embodiment, the core assembly includes an inner core (center) comprising a thermoset composition, an intermediate core layer; and surrounding outer core layer.
Acushnet Company

Golf ball incorporating ultra violet light resistant and light stable layer(s) and making

A golf ball comprising a layer formed from at least one of a thermoset material or a thermoplastic material throughout; the layer having a treated region and an untreated region; the treated region extending inward from an outer surface of the layer and comprising a uv resistance composition; and the untreated region not comprising the uv resistance composition. For example, the treated region may be infused with the uv resistance composition.
Acushnet Company

Golf ball

In a golf ball having a core of at least one layer and a cover of at least one layer, some or all of the surface of at least one such layer of the ball is treated with a treatment solution. The treatment solution is made of (a) a polyolefin-based thermoplastic resin and (b) at least one solvent selected from the group consisting of water, ammonia water and organic solvents, and is obtained by dissolving or finely dispersing resin solids of component a in the solvent of component b.
Bridgestone Sports Co., Ltd.

Golf putting practice system

The present application includes a system and method of improving a player's putting game. The system includes a target having a plurality of different sized holes adjacent its lower surface and configured to permit the passage of a rolling golf ball through the target.

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 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

Blends of polyamide and acid anhydride-modified polyolefins for use in golf balls

Multi-layered golf balls having at least one layer made of polyamide/acid anhydride-modified polyolefin blended compositions are provided. Preferably, a transparent polyamide is used.
Acushnet Company

Dimple patterns with surface texture for golf balls

The present invention provides a golf ball having an outer surface comprising a plurality of dimples covering greater than 70 percent of the outer surface, wherein 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

Golf ball aerodynamic configuration

The present invention relates to golf balls, specifically to a golf ball comprising an aerodynamic pattern having novel shaped dimple structures which reduce the variation in airflow turning angle thereby improving the golf ball's flight performance. The dimple structures have a conical shaped base with a dimple in the center and reduced or no flat land areas between the dimples..
Acushnet Company

Low-bouncing buffer net and golf target using the same

A low-bouncing buffer net includes a net material, a net frame and a buffering material. The net frame is used for supporting the net material.
Jetstron Technologies Co., Ltd.

Look & watching side swing putter

Provided is a putter in golf clubs for use in swinging and putting beside a golf ball while looking at front and keep watching the moving trace of the golf ball, which is titled as a look & watching side swing putter by which a golfer stands at the same point of place where he examined the green grass state and the distance previously, and practices swings while checking the estimated imaginary putting line of the golf ball, and executes putting of the golf ball on the side thereof like bowling while keep watching the golf ball, thereby reducing the putting errors or strokes to wrong directions due to the differences in views direction depending on putting posture and improving straight-line movement of the golf ball at putting.. .

Golf ball with deposited layer

A golf ball with a deposited layer is disclosed. The deposited layer is not produced by a molding process, such as injection molding or compression molding.
Nike, Inc.

Multi-layer core golf ball

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

Golf ball with soft feel

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

Golf ball

A golf ball according to the present invention includes a spherical core, a cover member including at least one layer that covers the core, and at least one coating layer that covers the cover member constituting an outermost layer. A plurality of dimples are formed in the cover member constituting the outermost layer.
Dunlop Sports Co. Ltd.

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 balls incorporating hnp ionomers based on highly diverse mixtures of organic acids

golf ball incorporating an hnp composition consisting of a mixture of: at least one ethylene acid copolymer; sufficient amount of cation source to neutralize greater than about 100% of all acid groups present; and a highly diverse mixture of at least four organic acids having different characteristics such as relating to: carbon chain lengths, number of double bonds on carbon chains, positioning of double bonds on carbon chains, number of branches, types of branches, positioning of branches on carbon chains, positioning of acid groups on carbon chains, configurations(cis/trans), functional groups on carbon chains, being saturated/unsaturated, being conjugated/non-conjugated; presence/absence of functional group(s) on carbon chain; being aliphatic/aromatic, or combinations thereof. No organic acid is present in highly diverse mixture in a concentration greater than 80%, or, in some embodiments, greater than 60%, or greater than 40%.
Acushnet Company

Golf ball layer incorporating inhomogeneous materials

A golf ball of the present invention comprises a core of one or more layers and a cover of one or more layers surrounding the core. At least one of the core layers is comprised of a surface region.
Achusnet Company

Polyamide compositions containing plasticizers for use in making golf balls

Multi-layered golf balls having at least one layer made of a polyamide composition containing a polyamide polymer and plasticizer are provided. The plasticizers help reduce the glass transition temperature (tg) of the composition and various plasticizers may be used.
Acushnet Company

Electronic personal golf training system

A personal golf training system that has a smart golf ball and a smart golf club that provide wireless signals to a personal, mobile computing device regarding parameters of the golf club and golf ball that are interpreted algorithmically by a software application. The interpretations (results) are stored and visually displayed on the mobile computing device for the golfer in training.

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 having surface divided by triangular concave sectors

In a golf ball having a surface divided by triangular concave sectors, an area of a surface of a sphere is divided into a plurality of areas forming spherical polyhedron and a plurality of dimples are formed for each of the plurality of areas. A triangular concave sector is formed by continuously forming a plurality of triangular concave on each arc along great circles dividing the surface of the sphere into the plurality of areas.
Volvik Inc.

Golf ball

An object of the present invention is to provide a golf ball traveling a great distance on driver shots and on iron shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, and a cover, wherein a difference (hx+1−hx−1) between a hardness (hx+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (hx−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in shore c hardness, a surface hardness (hx+y) of the spherical core is more than 65 in shore c hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, a thickness of the cover is 3 mm or less, a difference (hc−hx+y) between a hardness (hc) of the cover and the surface hardness (hx+y) of the spherical core is 2 or more in shore c hardness, and the cover has a highest hardness among the constituent members of the golf ball..
Dunlop Sports Co. Ltd.

Golf ball

An object of the present invention is to provide a golf ball traveling a great distance on driver shots. The present invention provides a golf ball comprising a spherical core including an inner layer and an outer layer, an intermediate layer and and a cover, wherein a difference (hx+1−hx−1) between a hardness (hx+1) at a point outwardly away in a radial direction from a boundary between the inner layer and the outer layer of the spherical core by 1 mm and a hardness (hx−1) at a point inwardly away in the radial direction from the boundary between the inner layer and the outer layer of the spherical core by 1 mm is 0 or more in shore c hardness, a surface hardness (hx+y) of the spherical core is more than 70 in shore c hardness, an angle α of a hardness gradient of the inner layer is 0° or more, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, the intermediate layer has a material hardness (hm) ranging from 65 to 80 in shore d hardness, and the intermediate layer has a highest hardness among the constituent members of the golf ball..
Dunlop Sports Co. Ltd.

Golf ball

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

Golf 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, a difference (α−β) between the angle α and an angle β of a hardness gradient of the outer layer is 0° or more, and the intermediate layer has a highest hardness among the constituent members of the golf ball..
Dunlop Sports Co. Ltd.

Systems and methods to track a golf ball to and on a putting green

Systems, methods and media to track a golf ball to and on a green are provided. In an example embodiment, a method comprises arranging golf ball tracking components including a 3-d tracking doppler radar, and at least one camera adjacent the green, and connecting a processor with signal sampling capability to the tracking components.
Edh Us Llc

Golf ball spin axis measurement

Systems, methods and media are provided for golf ball spin axis measurement. In one example, a method comprises detecting a launched golf ball, receiving reflected doppler signals from the golf ball by a radar device having an array of multiple receiver pairs, demodulating the spin-induced signals from the received signals, determining a time delay between the demodulated signals for the receiver pairs in the array, calculating an average time delay for the multiple receiver pairs, calculating a spin axis of the golf ball from the time delay values, outputting a spin axis value to an external system, and storing the spin axis value in a database..

Apparatus and catching a golf ball

An apparatus and method for catching a golf ball is disclosed herein. More specifically, the present invention discloses a compact golf ball catching apparatus having a first energy absorbing layer located at a frontal portion of the apparatus, a second energy absorbing layer located at a rear portion of the apparatus, and a frame adapted to connect the first and second energy absorbing layer as well as provide structural integrity to the first energy absorbing layer; wherein the first energy absorbing layer slows down the speed of a golf ball as it enters and penetrates the apparatus and hinders the golf ball's ability from exiting the apparatus post impact..

Golf training and practice aid that is designed for chipping, pitching, and full shots

Embodiments are directed to a golf training/practice aid designed for chipping, pitching, and taking full shots. The golf aid is comprised of a frame and a plurality of windows defined within the frame.

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 negative hardness gradient center that, optionally, is hard relative to an intermediate core layer..
Acushnet Company

Golf ball with polyalkenamer blend

At least one of the mantle layers comprises a blend composition of a lithium-catalyzed polybutadiene rubber and a polyalkenamer.. .

Golf ball

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

Golf balls having a foam center

Large diameter golf balls having a foam core are provided.. .
Acushnet Company

Golf ball with indicia printed under topcoat

A golf ball is provided that may include one or more structural layers, including an outermost structural layer having an outer surface. The ball may also include a primer coating applied to the entire outer surface of the outermost structural layer.
Nike, Inc.

Golf ball having discontinuous annular dimples

A golf ball in which a surface of a sphere is divided into a plurality of spherical polyhedrons and dimples are formed in each divided surface. A discontinuous annular dimple is formed over two or more of the dimples.
Volvik Inc.

Ball, in particular a golf ball, and an electronic device able to communicate with the ball

A golf ball (10) with an outer casing (11) has an electronic device (20) housed in a plastic core (12, 13), comprising at least one receiver (21), a microelectronic device (22) for evaluating and forwarding the received signals and a transmitter and/or receiver (23). The transmitter or receiver (23) can communicate with a separate electronic device worn by the user (30).

Golf practice tent

A golf practice tent having a ceiling, a floor and an open face for accepting golf balls that have been launched into the tent; a rigid frame structure at least partially external to the tent that provides structural support for the tent; and a planar net coupled to the ceiling of the tent and separated from a rear panel of the tent, such that the net hangs loosely from the ceiling and extends towards the floor, wherein the net is placed behind the open face such that golf balls that have been launched into the tent contact the net.. .

Swing training device

A swing training system which includes a light-reactive surface, and a training device having a light source capable of striking the light-reactive surface and creating a temporary visual representation of the path of the light over the surface. The device can include multiple light sources, which according to the arrangement of the illuminated paths on the surface indicate if the proper alignment was achieved during a swing.
Glow Right Golf, Llc

Golf balls comprising a plasticized polyurethane layer

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

Golf balls comprising a plasticized polyurethane layer

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

Golf balls 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 resin composition and golf ball

An object of the present invention is to provide a material for obtaining a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball resin composition having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (mpa) to a slab hardness (shore d hardness) in a range from 3 to 5, and containing, as a resin component, (a) a polyamide resin, (b) at least one selected from the group consisting of (b-1) a binary copolymer, (b-2) a metal ion-neutralized product of a binary copolymer, (b-3) a ternary copolymer and (b-4) a metal ion-neutralized product of a ternary copolymer, and (c) a thermoplastic elastomer..
Dunlop Sports Co., Ltd.

Golf ball

An object of the present invention is to provide a golf ball having excellent shot feeling and flight distance. The present invention provides a golf ball comprising a spherical core, a first resin layer and a second resin layer, wherein the first resin layer is formed from a first resin composition containing (a) a polyamide resin, (b) a copolymer and/or a metal ion-neutralized product thereof, and (c) a thermoplastic elastomer, and having a ratio (flexural elastic modulus/slab hardness) of a flexural elastic modulus (mpa) to a slab hardness (shore d hardness) in a range from 3 to 5; and the second resin layer is formed from a second resin composition containing (d) a polyamide resin, and (e) a copolymer and/or a metal ion-neutralized product thereof..
Dunlop Sports Co. Ltd.

Process for designing rugged pattern on golf ball surface

A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of: (1) assuming a large number of circles on a surface of a phantom sphere; (2) assuming a large number of generating points 16 based on positions of the large number of circles; (3) assuming a large number of voronoi regions 18 on the surface of the phantom sphere by a voronoi tessellation based on the large number of generating points 16; and (4) assigning a dimple and a land to the surface of the phantom sphere based on contours of the large number of voronoi regions 18..
Dunlop 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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