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1
US10232223B2
Publication/Patent Number: US10232223B2
Publication date: 2019-03-19
Application number: 15/935,393
Filing date: 2018-03-26
Abstract: The present invention is a golf ball which comprises dimples having a cross section defined by the superposition of two or more continuous and differentiable functions, and particularly the superposition of a catenary function and a Witch of Agnesi function. Additionally, the dimples preferably have a circular boundary and maintain an axis coincident with the center of the circular boundary. The present invention is a golf ball which comprises dimples having a cross section defined by the superposition of two or more continuous and differentiable functions, and particularly the superposition of a catenary function and a Witch of Agnesi function. Additionally, the ...more ...less
2
US10201731B2
Publication/Patent Number: US10201731B2
Publication date: 2019-02-12
Application number: 15/812,714
Filing date: 2017-11-14
Abstract: A golf ball 2 includes a core 4, a cover 8 positioned outside the core 4, and a paint film 10 positioned outside the cover 8. The paint film 10 includes an inner layer 12 and an outer layer 14 positioned outside the inner layer 12. A 10% modulus Mo of the outer layer 14 is lower than a 10% modulus Mi of the inner layer 12. A difference (Mi-Mo) between the modulus Mi and the modulus Mo is not less than 25.0 kgf/cm2. The cover 8 has a Shore D hardness Hc of not less than 50 and not greater than 65. The cover 8 has a thickness Tc of not less than 0.80 mm and not greater than 1.80 mm. A golf ball 2 includes a core 4, a cover 8 positioned outside the core 4, and a paint film 10 positioned outside the cover 8. The paint film 10 includes an inner layer 12 and an outer layer 14 positioned outside the inner layer 12. A 10% modulus Mo of the outer layer 14 is lower ...more ...less
3
US10286259B2
Publication/Patent Number: US10286259B2
Publication date: 2019-05-14
Application number: 15/011,540
Filing date: 2016-01-30
Inventor: Hartelius, Mark  
Abstract: A play ball has a rubber shell filled with resilient foam having an entire outer peripheral surface thereof intimately attached by heat fusion and adhesive to an entire interior surface of the shell. Such attachment enables the foam to provide additional resiliency by foam tension, as well as by foam compression, thereby significantly extending the effective bounce life of the ball. A seamed dog chew toy has essentially similar construction such that the increased retention force provided by the intimate attachment of the foam to the shell resists the chewing force of the dog popping a seam improving durability. A play ball has a rubber shell filled with resilient foam having an entire outer peripheral surface thereof intimately attached by heat fusion and adhesive to an entire interior surface of the shell. Such attachment enables the foam to provide additional resiliency by foam ...more ...less
4
US10279217B1
Publication/Patent Number: US10279217B1
Publication date: 2019-05-07
Application number: 15/939,780
Filing date: 2018-03-29
Inventor: Chavan, Vijay  
Abstract: A polyurethane coating for a golf ball that is based on polyol mixture containing acrylic polyol and BEPD based caprolcatone polyol is disclosed herein. The polyurethane coating comprises a part A component and a part B component, with the part A component comprising an acrylic polyol, a BEPD polyol, a 3-Oxazolidineethanol, a fluorosurfactant, a hindered amine light stabilizer, a UV-absorber, an optical brightener, a dibutyltin dilaurate catalyst, and an organic solvent, and the part B component comprising an aliphatic polyisocyanate and an organic solvent. A polyurethane coating for a golf ball that is based on polyol mixture containing acrylic polyol and BEPD based caprolcatone polyol is disclosed herein. The polyurethane coating comprises a part A component and a part B component, with the part A component comprising an acrylic ...more ...less
5
US10124212B2
Publication/Patent Number: US10124212B2
Publication date: 2018-11-13
Application number: 13/667,175
Filing date: 2012-11-02
Abstract: 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. The control points include the center of a polyhedral face, a vertex of the polyhedron, a midpoint or other point on an edge of the polyhedron and others. The method ensures that the symmetry of the underlying polyhedron is preserved while minimizing or eliminating great circles due to parting lines. 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 ...more ...less
6
EP3362156A1
Publication/Patent Number: EP3362156A1
Publication date: 2018-08-22
Application number: 16858037.1
Filing date: 2016-10-17
7
KR20180008048A
Publication/Patent Number: KR20180008048A
Publication date: 2018-01-24
Application number: 20160089826
Filing date: 2016-07-15
Inventor: Na, Jong Kap  
Assignee: NA, JONG KAP
Abstract: A golf ball of the present invention has a plurality of small and large protuberant protrusions formed on the wall surface and the bottom surface of a dimple, and the protrusion surface forms the curved surface in a hemispherical curved shape in order to make the golf ball easily identified when a golf ball hit by a golfer falls on a deep grass or a rough surface of a lawn, and the golf ball functions like a convex mirror so that a larger amount of light is incident and reflected, and at the same time, has a wide angle of an incident angle and a reflection angle. A golf ball of the present invention has a plurality of small and large protuberant protrusions formed on the wall surface and the bottom surface of a dimple, and the protrusion surface forms the curved surface in a hemispherical curved shape in order to make the golf ball ...more ...less
8
JP2018086219A
Publication/Patent Number: JP2018086219A
Publication date: 2018-06-07
Application number: 2016232270
Filing date: 2016-11-30
Inventor:
Assignee:
Abstract: 【課題】スピン性能に優れたゴルフボール2の提供。【解決手段】ゴルフボール2は、本体4と、この本体4の外側に位置するペイント層6とを有している。本体4は、球状のコア8と、このコア8の外側に位置する中間層10と、この中間層10の外側に位置するカバー12とを有している。ゴルフボール2の中心を通過する平面に沿った断面において、この断面に垂直な方向にペイント層が30mgfの力で押されたときの押し込み深さは、300nm以上3000nm以下である。ペイント層6の厚みは、5μm以上50μm以下が好ましい。【選択図】図1 【課題】スピン性能に優れたゴルフボール2の提供。【解決手段】ゴルフボール2は、本体4と、この本体4の外側に位置するペイント層6とを有している。本体4は、球状のコア8と、このコア8の外側に位置する中間層10と、この中間層10の外側に位置するカバー12とを有している。ゴルフボール2の中心を通過する平面に沿った断面において、この断面に垂直な方向にペイント層が30mgfの力で押されたときの押し込み深さは、300nm以上3000nm以下である。ペイント層6の厚みは、5μm以上50μm以下が好ましい。【選択図】図1 ...more ...less
9
WO2018131751A1
Publication/Patent Number: WO2018131751A1
Publication date: 2018-07-19
Application number: 2017003795
Filing date: 2017-04-07
Assignee: PARK, DO JOON
Abstract: The present invention relates to two integrated billiard balls for training, which include an image ball and an object ball assembled together by a connecting means and integrated through spherical contact therebetween so that, at the time of billiard training, a trainee can figure out a situation in which the trainee can hit the object ball coupled to the image ball of the training billiard balls, with a predetermined thickness, just by accurately hitting a cue ball while aiming the center of the image ball. Therefore, the present invention enables a trainee to easily practice thickness adjustment of an object ball and thus improve his or her billiard capability. The present invention relates to two integrated billiard balls for training, which include an image ball and an object ball assembled together by a connecting means and integrated through spherical contact therebetween so that, at the time of billiard training, a trainee can ...more ...less
10
US9908005B2
Publication/Patent Number: US9908005B2
Publication date: 2018-03-06
Application number: 14/948,252
Filing date: 2015-11-21
Abstract: 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. In addition, the present invention provides methods for designing dimples having a plan shape defined by a low frequency periodic function along a closed simple path. 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 ...more ...less
11
US9925421B2
Publication/Patent Number: US9925421B2
Publication date: 2018-03-27
Application number: 15/100,263
Filing date: 2014-11-24
Inventor: Kim, Young Jun  
Abstract: 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. 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 ...more ...less
12
US10010761B2
Publication/Patent Number: US10010761B2
Publication date: 2018-07-03
Application number: 15/178,179
Filing date: 2016-06-09
Abstract: 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. 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 ...more ...less
13
US20180064998A1
Publication/Patent Number: US20180064998A1
Publication date: 2018-03-08
Application number: 15/811,790
Filing date: 2017-11-14
Abstract: The present invention provides a golf ball having an outer surface comprising a plurality of dimples covering greater than 70 percent of the outer surface, wherein a plurality of the dimples incorporate directional surface texturing therein. The directional surface texturing preferably comprises substantially parallel channels or protrusions formed within the dimples. The directional surface texturing can comprise of parallel linear channels or protrusions or parallel non-linear linear channels or protrusions. The present invention provides a golf ball having an outer surface comprising a plurality of dimples covering greater than 70 percent of the outer surface, wherein a plurality of the dimples incorporate directional surface texturing therein. The directional surface texturing ...more ...less
14
US20180036603A1
Publication/Patent Number: US20180036603A1
Publication date: 2018-02-08
Application number: 15/786,498
Filing date: 2017-10-17
Abstract: A golf ball including a spherical body, first regions, and second regions. The spherical body includes a core layer and a cover layer made from a synthetic resin covering the core layer. Dimples are formed in a surface of the cover layer. First regions that are electrically conductive are formed on a surface of the spherical body. The first regions are formed on a spherical surface having a center of the spherical body as a center. The first regions are positioned at six vertices of an imaginary regular hexahedron such that the vertices are positioned on the surface of the spherical body and, thus, six of the first regions are formed. The second regions are formed in areas of the surface other than where the first regions are formed. The second regions have a radio wave reflectance lower than that of the first regions. A golf ball including a spherical body, first regions, and second regions. The spherical body includes a core layer and a cover layer made from a synthetic resin covering the core layer. Dimples are formed in a surface of the cover layer. First regions that are electrically ...more ...less