Ball Patents (Class 473/351)
  • Patent number: 10463920
    Abstract: An object of the present invention is to provide a golf ball that can strike a good balance in approach performance under a rough condition and a wet condition while maintaining a flight distance on driver shots.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: November 5, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hidetaka Inoue, Kazuya Kamino, Toshiyuki Tarao, Mami Tanaka
  • Patent number: 10456631
    Abstract: Golf ball comprising cast layer of thermoset polymer mixture having centering time Ct1 and comprising: (i) a polyurethane composition, polyurea composition, and/or polyurethane/polyurea hybrid composition; and (ii) a treated fumed silica compound in an amount such that centering time Ct1 is independent of the thermoset polymer mixture's degree of cure and lower than a centering time Ct2 of the thermoset polymer composition (which is dependent on its gel window Gw). The treated fumed silica compound may be surface treated with at least one of polydimethylsiloxane, hexamethyldisilazane, and dimethyldichlorosilane. In some embodiments, delta time ?t1 between a dispensing time Dt1 of the thermoset polymer mixture and centering time Ct1 is less than a delta time ?t2 between Ct1 and centering time Ct2. Centering time Ct1 and dispensing time Dt1 may differ by less than 10 seconds or even by 5 seconds or less.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: October 29, 2019
    Assignee: Acushnet Company
    Inventors: Shawn Ricci, Brian Comeau, Mark L. Binette
  • Patent number: 10441854
    Abstract: Golf balls having a multi-layered core made of a foamed composition are provided. The core preferably has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer. Preferably, a polyurethane foam composition is used to form the foam center. The foam inner core preferably includes a fully-foamed center region and a partially or completely-collapsed foam outer region. The hardness of the fully-foamed region is different than the hardness of the collapsed foam region. Non-foamed thermoset or thermoplastic materials such as polybutadiene rubbers or ethylene acid copolymer ionomer may be used to form the outer core layer. The ball further includes a cover that may be multi-layered. The foam cores have good resiliency.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: October 15, 2019
    Assignee: Acushnet Company
    Inventors: Mark L. Binette, Michael J. Sullivan, Douglas S. Goguen, Brian Comeau, Michael Michalewich, Shawn Ricci, John D. Farrell
  • Patent number: 10398941
    Abstract: 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.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: September 3, 2019
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci, Chris Hixenbaugh
  • Patent number: 10391363
    Abstract: Golf balls having an inner core made of a foamed composition are provided. The core assembly preferably includes a foam inner core (center) and surrounding outer core layer. A cross-linked thermoplastic, preferably an ethylene acid copolymer ionomer, is used to form the foam composition. The core layers have different hardness gradients and specific gravity values. The ethylene acid copolymer is reacted with a metallic acrylate salt and peroxide free-radical initiator to form the cross-linked polymer. The foamed, cross-linked composition helps provide the inner core with good resiliency, thermal stability, and durability. Non-foamed thermoplastics or thermosets such as polybutadiene rubber may be used to form the outer core layer. The ball further includes a cover that may be multi-layered.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: August 27, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Brian Comeau, Michael Michalewich
  • Patent number: 10376747
    Abstract: Multi-layered golf balls having a core, intermediate layer, and cover are provided. The ball includes a non-foamed inner core (center) made of a thermoplastic or thermoset composition such as polybutadiene rubber. An intermediate layer comprising a foamed composition, such as polyurethane foam, is disposed about the inner core. The foamed intermediate layer may have a specific gravity gradient within the layer, wherein the outer surface specific gravity is greater than the midpoint specific gravity. Ball constructions having two intermediate layers, wherein at least one layer is a foamed layer can be made. A cover having at least one layer is disposed about the intermediate layer.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: August 13, 2019
    Assignee: Acushnet Company
    Inventors: Shawn Ricci, Michael Michalewich, Brian Comeau, Michael J. Sullivan, Mark L. Binette, Douglas S. Goguen
  • Patent number: 10205083
    Abstract: A device is provided, including a deformable shell defining an inner space including at least one piezoelectric system. The piezoelectric system includes a flexible piezoelectric membrane capable of generating electric energy under the effect of a deformation to which it is submitted, a rechargeable electric power source, formed on a flexible substrate, and an electronic circuit. The electronic circuit includes a processing circuit for generating and storing data according to the electric energy generated by the piezoelectric membrane, and connected to the electric power source for its electric power supply, and a wireless transmitter connected to the processing circuit to transmit the data stored therein and connected to the electric power source for its electric power supply. Each piezoelectric system is totally arranged on and/or inside of the deformable shell.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: February 12, 2019
    Assignee: Commissariat A L'Energie Atomique Et Aux Energies Alternatives
    Inventors: Guillaume Savelli, Philippe Coronel
  • Patent number: 10188908
    Abstract: 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. For example, the composition may include ethyl oleate or propylene carbonate as a plasticizer. Transparent polyamides, for example, polyether-amide block copolymers, preferably are used in the composition. The golf ball includes a core having at least one layer and a cover having at least one layer. The polyamide composition may be used to form any core, cover, or other layer in the golf ball. In one version, the polyamide composition is used to form the inner cover layer.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: January 29, 2019
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, David A. Bulpett, Robert Blink, Mark L. Binette, Brian Comeau
  • Patent number: 10046204
    Abstract: 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.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: August 14, 2018
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Hidetaka Inoue, Toshiyuki Tarao
  • Patent number: 9968829
    Abstract: 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.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: May 15, 2018
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Hideo Watanabe, Katsunori Sato
  • Patent number: 9937385
    Abstract: Golf balls having a multi-layered core made of a foamed composition are provided. The core preferably has a foam inner core (center) and surrounding thermoset or thermoplastic outer core layer. Preferably, a polyurethane foam composition is used to form the foam center. The foam inner core preferably includes a fully-foamed center region and a partially or completely-collapsed foam outer region. The hardness of the fully-foamed region is different than the hardness of the collapsed foam region. Non-foamed thermoset or thermoplastic materials such as polybutadiene rubbers or ethylene acid copolymer ionomer may be used to form the outer core layer. The ball further includes a cover that may be multi-layered. The foam cores have good resiliency.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: April 10, 2018
    Assignee: Acushnet Company
    Inventors: Mark L. Binette, Michael J. Sullivan, Douglas S. Goguen, Brian Comeau, Michael Michalewich, Shawn Ricci, John D. Farrell
  • Patent number: 9925420
    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 spherical curve and a cosine curve. Additionally, the dimples preferably have a circular boundary and maintain an axis coincident with the center of the circular boundary.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 27, 2018
    Assignee: Acushnet Company
    Inventors: Michael R. Madson, Nicholas M. Nardacci
  • Patent number: 9914020
    Abstract: A golf ball includes oval dimples arranged on the surface thereof. Each of the oval dimples has a long diameter DL and a short diameter DS in a planar shape thereof and further having a depth DPL on a first cross section of the oval dimple along the long diameter DL and a depth DPS on a second cross section of the oval dimple along the short diameter DS, the depth DPL being a distance taken on the first cross section along the long diameter DL from a first line connecting both ends of the first cross section of the oval dimple to a deepest point of a dimple bottom surface, the depth DPS being a distance taken on the second cross section along the short diameter DS from a second line connecting both ends of the second cross section of the oval dimple to a deepest point of a dimple bottom surface, a relationship between the depth DPL and the depth DPS being defined as a following formula (1): DPS>DPL??(1).
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: March 13, 2018
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Katsunori Sato
  • Patent number: 9889342
    Abstract: 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. This golf ball can satisfy at a high level the flight and control performance relied on by professional golfers and skilled amateurs.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: February 13, 2018
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Akira Kimura, Toru Ogawana, Katsunobu Mochizuki
  • Patent number: 9873026
    Abstract: A golf ball includes an inner core layer including a thermoplastic highly-neutralized ionomer formed from a copolymer of ethylene and an ?,?-unsaturated carboxylic acid, an organic acid or salt thereof, and sufficient cation source to neutralize the acid groups of the copolymer by 80% or greater. The inner core has a geometric center hardness and a surface hardness to define a first positive hardness gradient having a first slope, S1. An outer core layer is disposed about the inner core and is formed from a second thermoplastic highly-neutralized ionomer. The outer core layer has an interior hardness and an outer surface hardness greater than the interior hardness to define a second positive hardness gradient having a second slope, S2. The golf ball also includes a cover layer.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: January 23, 2018
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Brian Comeau, William B. Lacy
  • Patent number: 9849342
    Abstract: A golf ball of one aspect of the present invention includes a spherical core, one or more cover members to cover the core, and a coating layer to coat a cover member configuring an outermost layer of the one or more cover members. A plurality of dimples is formed in the cover member. Shore-D hardness of the cover member is equal to or larger than 50. A 10% modulus of the coating layer is equal to or smaller than 160 kgf/cm2. Roughness is produced on a surface of the coating layer after applying a coating material over the cover member of the outermost layer A maximum height Rz of the coating layer is equal to or larger than 3 ?m.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: December 26, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventor: Takahiro Sajima
  • Patent number: 9839815
    Abstract: An object of the present invention is to provide a golf ball showing excellent shot feeling and stain resistance. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein a base resin constituting the paint film includes a polyurethane obtained by a reaction between a polyol composition and a polyisocyanate composition, a molar ratio (NCO/OH) of an isocyanate group (NCO group) in the polyisocyanate composition to a hydroxyl group (OH group) in the polyol composition is 0.6 or more, and the paint film has an elastic modulus of 300 MPa or less.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: December 12, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Yoshiko Matsuyama, Toshiyuki Tarao
  • Patent number: 9814939
    Abstract: Multi-piece golf balls having a solid core made of a foamed silicone composition and a cover are provided. For example, three-piece, four-piece, and five-piece golf balls containing different core structures can be made. Preferably, a dual-core having has a silicone foam inner core (center) and surrounding silicone foam outer core layer is made. The core layers can have different hardness gradients. The silicone foam center and outer core layer have good thermal stability and durability and provide the ball with good resiliency.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: November 14, 2017
    Assignee: Acushnet Company
    Inventors: Brian Comeau, Shawn Ricci, John D. Farrell, Michael J. Sullivan, Mark L. Binette, Michael Michalewich, Douglas S. Goguen
  • Patent number: 9707452
    Abstract: A golf ball has a large number of dimples 10 on a surface thereof. The dimples 10 include a plurality of small dimples 10S each having an area of less than 8.0 mm2, and a plurality of large dimples 10L each having an area of equal to or greater than 8.0 mm2. A ratio PS of a sum of areas of all the small dimples 10S to a surface area of a phantom sphere of the golf ball is less than 2.0%. The number NL of the large dimples 10L is equal to or greater than 250 but less than 450. The number NL of the large dimples 10L and a degree G of uniformity of areas of the large dimples 10L satisfy the following mathematical formula (II): G<0.0032·NL+0.26??(II).
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: July 18, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kohei Mimura, Takahiro Sajima
  • Patent number: 9683969
    Abstract: A method of characterizing an object that includes, at least locally, a plane of symmetry, the method including performing at least one observation of ultrasound transmitted through the object, each observation being performed on an axis perpendicular to the plane of symmetry, each observation resulting from an emission of ultrasound generated along a respective one of the axes and meeting the object along the axis at an angle of incidence other than normal, the ultrasound meeting the object to follow a path that is symmetrical relative to the plane of symmetry.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: June 20, 2017
    Assignee: SNECMA
    Inventor: Jean-Yves Francois Roger Chatellier
  • Patent number: 9664512
    Abstract: An orientation indicating device, the device comprises an enclosure, a plurality of rods fixed together at their one end forming a rod structure. The rod structure is rotatably mounted inside the enclosure. At least one roller provisioned in-between an inner surface of the enclosure and a free end of each of the plurality of rods. Further, at least one rod of the plurality of rods is configured to be heavier than the other rods, and said heavier rod is adapted to point towards gravity.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 30, 2017
    Inventor: Tilak Srinivasan
  • Patent number: 9616297
    Abstract: Low compression, multi-piece golf balls containing a solid core and two or three-layered cover assemblies are provided. Preferably, the ball has a compression of less than 60 and more preferably less than 50. At least one cover layer is made of a plasticized thermoplastic composition. For example, two-layered and three-layered covers may be made. Preferably, the plasticized thermoplastic composition comprises: a) ethylene acid copolymer, b) plasticizer, and c) cation source. A fatty acid ester such as ethyl oleate or butyl oleate is preferably used as the plasticizer. The cover assembly has good impact durability and helps provide the ball with relatively high resiliency at given compressions.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: April 11, 2017
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Mark L. Binette, Robert Blink, David A. Bulpett, Brian Comeau, John D. Farrell, Douglas S. Goguen
  • Patent number: 9533196
    Abstract: A golf ball includes an intermediate layer, a cover, and a paint film, wherein a base resin of the paint film is a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol including a polyether diol with a number average molecular weight ranging from 800 to 3000 as a constituent component, and the golf ball satisfies the following requirements; Mp?200×X?75 Mp?100 Mm?Mc>100 Tm>Tc>Tp (Tm×Mm)/(Tc×Mc)>7.5 (Tc×Mc)/(Tp×Mp)>2.4. [Mp, Mm and Mc represent 10% modulus (kgf/cm2) of the paint film, intermediate layer and cover, respectively; Tp, Tm and Tc represent thicknesses (mm) of the paint film, intermediate layer and cover, respectively; and X represents a molar ratio (NCO/OH).
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 3, 2017
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Kazuhiko Isogawa, Kosuke Tachibana, Toshiyuki Tarao
  • Patent number: 9457235
    Abstract: 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. The intermediate core layer is preferably formed from a thermoplastic composition such as an ethylene acid copolymer ionomer resin; and the outer core layer is preferably formed from a thermoset composition such as polybutadiene rubber. The core layers have different hardness and specific gravity levels. In one preferred embodiment, the inner core has a positive hardness gradient, the intermediate core has a positive hardness gradient, and the outer core has a zero or negative hardness gradient. The core structure and resulting ball have relatively good resiliency.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: October 4, 2016
    Assignee: Acushnet Company
    Inventors: Michael J. Sullivan, Derek A. Ladd, Mark L. Binette, Brian Comeau, Michael Michalewich, Shawn Ricci
  • Patent number: 9440117
    Abstract: An object of the present invention is to provide a golf ball which shows a high spin rate on approach shots and an excellent stain resistance. The present invention provides a golf ball comprising a golf ball body and a paint film formed on a surface of the golf ball body, wherein a base resin constituting the paint film is a polyurethane obtained by a reaction between a polyol composition and a polyisocyanate composition, the polyol composition contains a urethane polyol including a polyether diol having a number average molecular weight from 800 to 3000 as a constituent component, the paint film has a 10% elastic modulus of 100 kgf/cm2 or less, and the 10% elastic modulus (kgf/cm2) (Y) of the paint film and a molar ratio (NCO/OH) (X) of NCO of the polyisocyanate composition to OH of the polyol composition satisfy a following equation (1).
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 13, 2016
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Toshiyuki Tarao, Kuniyasu Horiuchi
  • Patent number: 9409064
    Abstract: Golf balls include: (a) a golf ball body having a first set of construction specifications and a first dimple pattern formed on an outer surface of the golf ball body; and (b) a coating applied to the outer surface of the golf ball body to thereby produce a coated golf ball body having an exterior surface. At least one of the outer surface of the golf ball body and the coating includes a plurality of surface roughening particles to provide increased micro surface roughness as compared to golf balls having the same set of construction specifications and the same dimple pattern but without the micro surface roughening particles. The micro surface roughening affects the aerodynamic properties of the ball.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: August 9, 2016
    Assignee: NIKE, Inc.
    Inventors: Derek A. Fitchett, Johannes Anderl
  • Patent number: 9409058
    Abstract: An object of the present invention is to provide a golf ball having a great flight distance on driver shots. The present invention provides a golf ball having a spherical core and at least one cover layer covering the spherical core, wherein when JIS-C hardness, which is measured at nine points obtained by dividing a radius of the spherical core into equal parts having 12.5% intervals therebetween, is plotted against distance (%) from a core center, the spherical core is such that R2 of a linear approximation curve obtained from the least square method is 0.95 or higher, and a hardness difference between a core surface hardness and a core central hardness is 15 or higher in JIS-C hardness.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: August 9, 2016
    Assignee: DUNLOP SPORTS CO. LTD.
    Inventors: Chiemi Mikura, Kazuhisa Fushihara, Mikio Yamada
  • Patent number: 9393462
    Abstract: A golf ball comprising a core, a cover and at least one moisture vapor barrier layer, wherein the moisture vapor barrier layer comprises at least one layer formed from graphene.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 19, 2016
    Assignee: Acushnet Company
    Inventor: John D. Farrell
  • Patent number: 9039544
    Abstract: When manufacturing golf balls having a structural component which is a molded and vulcanized material obtained by vulcanizing a rubber composition containing, as the essential ingredients, a base rubber and an unsaturated carboxylic acid or a salt thereof, the distinguishability of structural components such as cores can be enhanced by including also a soluble pigment within, and thereby coloring, the rubber composition. Moreover, vulcanized rubber powder obtained by rendering processing scrap and waste from such cores into powder can be easily decolorized by liquid washing to remove the pigment, thus enabling advantageous use of the vulcanized rubber powder as a compounding ingredient in the manufacture of other golf ball cores without affecting the color tone of the manufactured balls.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 26, 2015
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Toshiro Wachi
  • Patent number: 9005049
    Abstract: The invention provides a solid golf ball which has a core of at least one layer and a cover of at least one layer. At least one layer of the core is formed primarily of polybutadiene and includes at least 0.05 part by weight each of (I) a rubber powder obtained by granulating a rubber material containing acrylic acid or a metal salt of acrylic acid and (II) a polyurethane resin powder per 100 parts by weight of rubber component. At least one layer of the cover is formed primarily of polyurethane.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: April 14, 2015
    Assignee: Bridgestone Sports Co., Ltd.
    Inventor: Hirotaka Shinohara
  • Patent number: 8986137
    Abstract: A ball includes a core, a cover, and cracking element or cracking layer. The cracking layer may be deformed or actuated to create discontinuities in the cover. The creation of discontinuities allows for easier recycling of the ball parts. The cracking layer may include one of a bladder or a hydrophilic material that expand upon the introduction of a fluid, a shape memory polymer that deforms upon application of a stimulus, or two materials that react chemically to form a gas.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: March 24, 2015
    Assignee: NIKE, Inc.
    Inventors: Derek A. Fitchett, Arthur P. Molinari
  • Patent number: 8968117
    Abstract: A golf ball comprising: an inner core formed from a first substantially homogenous rubber composition comprising a carbon-carbon initiator, the inner core having a geometric center and a first outer surface having a hardness less than that of the geometric center by up to about 20 Shore C; an outer core layer disposed about the inner core formed from a second substantially homogenous rubber composition and comprising a second outer surface having a hardness that is up to about 43 Shore C points greater than the hardness of the geometric center; an inner cover layer disposed about the core comprising an ionomeric material and having a material hardness of about 55 Shore D or greater; an outer cover layer disposed about the inner cover layer comprising a polyurea or polyurethane and having a material hardness of 20 Shore D to 70 Shore D.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 3, 2015
    Assignee: Acushnet Company
    Inventors: Brian Comeau, Nelson Araujo, Dennis Britton
  • Patent number: 8962720
    Abstract: The invention provides a rubber composition for golf balls which includes (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %, (B) an unsaturated carboxylic acid and/or a metal salt thereof, and (C) a benzimidazole of general formula (1) or (2) below wherein R is a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, and m is an integer from 1 to 4, with the proviso that if m is 2 or more, each occurrence of R may be the same or different. The golf ball rubber composition of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: February 24, 2015
    Assignees: Bridgestone Sports Co., Ltd., Bridgestone Corporation
    Inventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Teppei Mori, Yusuke Yamagata, Takahiro Iwai
  • Patent number: 8932680
    Abstract: Method of making a golf ball. A blend of a first highly neutralized acid polymer, a second highly neutralized acid polymer, and an ionomer-based masterbatch comprising an ionomer resin and an additive is used to form a layer of a golf ball. A second layer that essentially encloses the blend-containing layer then is formed.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: January 13, 2015
    Assignee: NIKE, Inc.
    Inventors: Hideyuki Ishii, Yasushi Ichikawa, Chen-Tai Liu, Arthur Molinari
  • Publication number: 20140364573
    Abstract: The invention relates to a high-molecular-weight, linear, neodymium-catalysed polybutadiene having a high proportion, >95%, of cis-1,4 units having a low proportion, <1%, of 1,2-vinyl content, and also having a small molar-mass-polydispersity index (MPI), characterized in that Mooney viscosity (ML1+4 100° C.) of the polybutadiene is from 70 to 90 and The molar-mass-polydispersity index of the polybutadiene is smaller than 10.
    Type: Application
    Filed: August 27, 2014
    Publication date: December 11, 2014
    Inventors: Heike Kloppenburg, Norbert Steinhauser
  • Patent number: 8905860
    Abstract: A ball includes a core, a cover, and an intermediate layer between the core and the cover. The intermediate layer may be deformed or actuated to create discontinuities in the cover. The creation of discontinuities allows for easier recycling of the ball parts. The intermediate layer may include one of a bladder or a hydrophilic material that expand upon the introduction of a fluid, a shape memory polymer that deforms upon application of a stimulus, or two materials that react chemically to form a gas.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: December 9, 2014
    Assignee: NIKE, Inc.
    Inventors: Derek A. Fitchett, Arthur P. Molinari, Jung Gyu Moon
  • Patent number: 8905861
    Abstract: A ball includes a core, a cover, and a separator or separating layer. The separating layer may be deformed or actuated to separate at least a portion of the cover from the core. This removal allows for easier recycling of the ball parts. The separating layer may include one of a bladder or a hydrophilic material that expand upon the introduction of a fluid, a shape memory polymer that deforms upon application of a stimulus, or two materials that react chemically to form a gas.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: December 9, 2014
    Assignee: NIKE, Inc.
    Inventor: Derek A. Fitchett
  • Publication number: 20140357424
    Abstract: A golf ball has a diameter of at least about 43.6 mm and a density of from about 0.85 g/cm3 to 1.05 g/cm3. The golf ball can be made of ionomer resin or a combination of ionomer resins, including highly neutralized polymers and highly resilient polymers as disclosed. The golf ball may have a solid core made of a highly neutralized polymer or highly resilient polymer and a cover of an ionomer resin.
    Type: Application
    Filed: May 6, 2014
    Publication date: December 4, 2014
    Applicant: NIKE, Inc.
    Inventors: Hideyuki Ishii, Arthur P. Molinari, Thomas J. Kennedy, III
  • Publication number: 20140309054
    Abstract: The “Novelty Square Golf Ball” is intended as a novelty item, having the same weight and approximate proportional dimensions with a plurality of dimples on the outer covering, resembling an ordinary spherical golf ball. The “Novelty Square Golf Ball” will be a cube in physical nature. The “Novelty Square Golf Ball” will resemble an ordinary golf ball in all aspects except for its unique cube shape, and unlike an ordinary golf ball, the “Novelty Square Golf Ball” solid core materials will not be of consequence to the final product or its performance. The “Novelty Square Golf Ball” is not intended for use in a game of golf, or any other challenge. The “Novelty Square Golf Ball” will appear white in overall color, but may be produced in a variety of colors. The “Novelty Square Golf Ball” may have one or more graphics, logos and/or text messages imprinted on the outer cover.
    Type: Application
    Filed: April 15, 2013
    Publication date: October 16, 2014
    Inventor: James Phillip Ellison
  • Publication number: 20140302947
    Abstract: Multi-layered golf balls having at least one layer made of a polyamide composition containing a transparent polyamide polymer are provided. The transparent polyamide may be blended with other transparent or non-transparent polyamides. Thermoplastic polyamide elastomers such as polyether-amide block copolymers may be used. In one version, the composition comprises a blend of transparent polyamide, acid anhydride-modified polyolefin, and plasticizer. The golf ball includes a core having at least one layer and a cover having at least one layer. The polyamide composition may be used to form any core, cover, or other layer in the golf ball. In one version, the polyamide composition is used to form the inner cover layer.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Applicant: ACUSHNET COMPANY
    Inventors: Michael J. Sullivan, David A. Bulpett, Robert Blink, Mark L. Binette, Brian Comeau
  • Publication number: 20140274465
    Abstract: Friction-fit, removable plugs for holes in hollow, perforated game balls, such as Wiffle Balls and practice golf balls. Plugging the holes allows users to adjust the flight and composition of the balls in various ways, including matching the distance of balls to the available space and to the players' abilities. An adjustable golf ball is one embodiment. Plugging the holes also provides a means to attach various accessories, which creates modularity, facilitates experimentation and ball development, and permits an app-like avenue of marketing and development of balls.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventor: Raymond L. Francis
  • Publication number: 20140274469
    Abstract: A thermoplastic golf ball material is made by combining and reacting (a) an unneutralized copolymer of ethylene and at least one of acrylic acid and methacrylic acid, which has from about 5 to about 12 percent by weight acid monomer; (b) a metallocene-catalyzed copolymer of ethylene and octene; (c) an unsaturated fatty acid; and (d) a metal cation in an amount sufficient to neutralize from about 65 to about 90% of the acid groups, to produce an ionomeric thermoplastic material. The ionomeric thermoplastic material may be used in a core, a cover, or a layer between a core and a cover of a golf ball.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventor: NIKE, INC.
  • Patent number: 8822604
    Abstract: The invention provides a rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) sulfur. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: September 2, 2014
    Assignees: Bridgestone Sports Co., Ltd., Bridgestone Corporation
    Inventors: Yuichiro Ozawa, Tsuyoshi Nakajima, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
  • Patent number: 8802788
    Abstract: Rubber composition for golf balls which includes: (A) a base rubber containing a polybutadiene having a cis-1,4 bond content of at least 60 wt %; (B) an unsaturated carboxylic acid and/or a metal salt thereof; (C) an anthranilic acid derivative of the general formula wherein R1 and R2 are each independently a hydrogen atom or a hydrocarbon group of 1 to 20 carbons, m is an integer from 1 to 4, and n is an integer from 1 to 3, with the proviso that if m and/or n is 2 or more, each occurrence of R1 and R2 may be the same or different; and (D) an organic peroxide having a one-minute half-life temperature which is at least 158° C. and less than 175° C. The rubber composition for golf balls of the invention enables a high-quality molded and crosslinked product having a suitable hardness and a high resilience to be obtained.
    Type: Grant
    Filed: December 11, 2012
    Date of Patent: August 12, 2014
    Assignees: Bridgestone Sports Co., Ltd., Bridgestone Corporation
    Inventors: Tsuyoshi Nakajima, Yuichiro Ozawa, Yusuke Yamagata, Teppei Mori, Takahiro Iwai
  • Patent number: 8690711
    Abstract: A plurality of layers and elements are incorporated into a golf ball to display values for various swing characteristics on a display layer of a ball. A calculator is incorporated to calculate a value of at least one swing characteristic. A weighted light source is incorporated to display the value on a display layer. The display layer is a substantially opaque layer.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: April 8, 2014
    Assignee: NIKE, Inc.
    Inventors: Chin-Shun Ko, Chen-Tai Liu
  • Publication number: 20140073460
    Abstract: The invention provides a golf ball endowed with an improved distance and durability. The ball has a core and a cover, the core being formed of a rubber composition containing a base rubber, a co-crosslinking agent, a crosslinking initiator and a metal oxide. The base rubber is a mixture of (A) polybutadiene with (B) styrene-butadiene rubber and/or isoprene rubber, the co-crosslinking agent is methacrylic acid, and the metal oxide is zinc oxide. The rubber composition contains the crosslinking initiator in an amount of from 1.2 to 5 parts by weight per 100 parts by weight of the base rubber.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Applicant: BRIDGESTONE SPORTS CO., LTD.
    Inventors: Yuichiro OZAWA, Daisuke ARAI, Hiroshi HIGUCHI, Takashi OHIRA, Katsunori SATO
  • Publication number: 20140073452
    Abstract: When manufacturing golf balls having a structural component which is a molded and vulcanized material obtained by vulcanizing a rubber composition containing, as the essential ingredients, a base rubber and an unsaturated carboxylic acid or a salt thereof, the distinguishability of structural components such as cores can be enhanced by including also a soluble pigment within, and thereby coloring, the rubber composition. Moreover, vulcanized rubber powder obtained by rendering processing scrap and waste from such cores into powder can be easily decolorized by liquid washing to remove the pigment, thus enabling advantageous use of the vulcanized rubber powder as a compounding ingredient in the manufacture of other golf ball cores without affecting the color tone of the manufactured balls.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: BRIDGESTONE SPORTS CO., LTD.
    Inventor: Toshiro WACHI
  • Patent number: 8655631
    Abstract: The accuracy or computation speed of mechanical analysis of a golf ball using the finite element method is increased. In the mechanical analysis, a model representing the golf ball is prepared on a computer, and computation is made by the finite element method using elements and nodes. At this time, the elements are made solid elements of hexahedron, the aspect ratio of the shape of each element is set so as to be not lower than 1.0 and not substantially higher than 6.5, and nodes are provided on the sides and at the vertexes of the hexahedron of element.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: February 18, 2014
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Takuichi Shimizu, Hideo Matsunaga
  • Patent number: 8647219
    Abstract: Based on a surface shape appearing at a predetermined point moment by moment during rotation of a golf ball having numerous dimples on its surface, a data constellation regarding a parameter dependent on a surface shape of the golf ball is calculated. Preferably, the parameter is a distance between an axis of the rotation and the surface of the golf ball. Another preferable parameter is a volume of space between a surface of a phantom sphere and the surface of the golf ball. Based on a maximum value and a minimum value of the data constellation, a fluctuation range is calculated. By dividing the fluctuation range by a total volume of the dimples, an evaluation value is calculated. This value is calculated for each of PH rotation and POP rotation.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: February 11, 2014
    Assignee: SRI Sports Limited
    Inventors: Hyoungchol Kim, Takahiro Sajima, Kaname Yamada
  • Publication number: 20140031145
    Abstract: The invention provides a resin composition for golf balls having excellent resilience, flexibility and fluidity, and golf balls having excellent resilience and shot feel.
    Type: Application
    Filed: July 29, 2013
    Publication date: January 30, 2014
    Applicant: DUNLOP SPORTS CO. LTD.
    Inventors: Akinori KITAMURA, Kazuyoshi SHIGA, Takahiro SHIGEMITSU, Yu KAWABATA