Patents by Inventor George R. Wallace
George R. Wallace has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6896628Abstract: The golf ball comprises all known cores provided with a cover produced by a polymer blend that combines the durability of a conventional cover with excellent feel and playability. The cover formulation is a blend of various ethylene/methacrylic acid copolymers wherein at least one copolymer has a high modulus and at least one copolymer has a moderate modulus forming a miscible blend having a blend that maximizes durability while still maintaining feel and playability.Type: GrantFiled: June 5, 2001Date of Patent: May 24, 2005Assignee: Dunlop SportsInventors: Brent D. Emerson, George R. Wallace, Ronald L. Grey
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Patent number: 6811498Abstract: A two piece golf ball has a core compression in the range of 75 PGA to 89 PGA, a core diameter in the range of about 1.535 inches to 1.545 inches, a cover hardness in the range of 42 to 60 Shore D, and a dimple pattern based on the geometry of a icosahedron. An uninterrupted equatorial great circle path, corresponding to a mold parting line, is provided in the design for forming a cover of the golf ball in two parts. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.Type: GrantFiled: June 19, 2001Date of Patent: November 2, 2004Assignee: Dunlop Maxfli SportsInventors: Brent D. Emerson, George R. Wallace, Matthew B. Stanczak, Sanjay Kuttappa
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Patent number: 6740727Abstract: A thermoplastic polyurethane (TPU) elastomer and p-phenylene diisocyanate (PPDI)/polycaprolactone-based composition therefor having a unique chain extender combination for improved injection moldability. The elastomer is formed as the reaction product of: (A) from about 60 to 80% by weight of a hydroxyl-terminated poly(caprolactone) diol; (B) from about 17 to 22% by weight of a p-phenylene diisocyanate; (C) from about 3 to 10% by weight of a first hydroxyl-functional chain extender; and (D) less than about 2% by weight of a second hydroxyl-functional chain extender different from the first chain extender, the second chain extender being selected as effective to modify the crystallinity of the elastomer.Type: GrantFiled: November 27, 2002Date of Patent: May 25, 2004Assignee: Parker-Hannifin CorporationInventors: Thomas L. Plummer, Val C. Comes, George R. Wallace
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Patent number: 6719646Abstract: A urethane-covered three-piece golf ball with a liquid-filled center, having a combination of center weight, thread windings, dimple configuration and compression that allows it to travel great distances, and to match the classic feel of ‘Balata’ balls, said combination at the same time complying with USGA regulations.Type: GrantFiled: January 25, 2000Date of Patent: April 13, 2004Assignee: Dunlop Slazenger SportsInventors: John A. Calabria, Sanjay M. Kuttappa, Matthew B. Stanczak, Jens A. John, George R. Wallace, Lane D. Lemons
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Publication number: 20030122282Abstract: A thermoplastic polyurethane (TPU) elastomer and p-phenylene diisocyanate (PPDI)/polycaprolactone-based composition therefor having a unique chain extender combination for improved injection moldability. The elastomer is formed as the reaction product of: (A) from about 60 to 80% by weight of a hydroxyl-terminated poly(caprolactone) diol; (B) from about 17 to 22% by weight of a p-phenylene diisocyanate; (C) from about 3 to 10% by weight of a first hydroxyl-functional chain extender; and (D) less than about 2% by weight of a second hydroxyl-functional chain extender different from the first chain extender, the second chain extender being selected as effective to modify the crystallinity of the elastomer.Type: ApplicationFiled: November 27, 2002Publication date: July 3, 2003Applicant: Parker-Hannifin CorporationInventors: Thomas L. Plummer, Val C. Comes, George R. Wallace
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Patent number: 6572494Abstract: The golf ball comprises all known cores provided with a cover produced by a polymer blend that combines the durability of a conventional cover with the feel of a traditional balata cover having a plurality of dimples in a modified dodecahedron pattern. The dodecahedron consists of twelve pentagons, which are subdivided into a total of sixty triangles. The triangles are then further subdivided into rows into which various diameter dimples are placed. The dimple pattern can be arranged to produce a pattern of ten great circles, which are free of dimples. The cover formulation is a blend of various ethylene/methacrylic acid copolymers wherein at least one copolymer has a high modulus and at least one copolymer has a moderate modulus forming a miscible blend having a PDI index that maximizes durability while still maintaining feel and playability.Type: GrantFiled: June 19, 2001Date of Patent: June 3, 2003Assignee: Dunlop Slazenger ManufacturingInventors: Brent D. Emerson, George R. Wallace, Matthew B. Stanczak, Sanjay Kuttappa
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Patent number: 6521164Abstract: A thermoplastic polyurethane (TPU) elastomer and p-phenylene diisocyanate (PPDI)/polycaprolactone-based composition therefor having a unique chain extender combination for improved injection moldability. The elastomer is formed as the reaction product of: (A) from about 60 to 80% by weight of a hydroxyl-terminated poly(caprolactone) diol; (B) from about 17 to 22% by weight of a p-phenylene diisocyanate; (C) from about 3 to 10% by weight of a first hydroxyl-functional chain extender; and (D) less than about 2% by weight of a second hydroxyl-functional chain extender different from the first chain extender, the second chain extender being selected as effective to modify the crystallinity of the elastomer.Type: GrantFiled: December 23, 1996Date of Patent: February 18, 2003Assignee: Parker-Hannifin CorporationInventors: Thomas L. Plummer, Val C. Comes, George R. Wallace
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Publication number: 20020098914Abstract: A urethane-covered three-piece golf ball with a liquid-filled center, having a combination of center weight, thread windings, dimple configuration and compression that allows it to travel great distances, and to match the classic feel of ‘Balata’ balls, said combination at the same time complying with USGA regulations.Type: ApplicationFiled: January 25, 2000Publication date: July 25, 2002Inventors: John A. Calabria, Sanjay M. Kuttappa, Matthew B. Stanczak, Jens A. John, George R. Wallace, Lane D. Lemons
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Patent number: 6383093Abstract: A two piece golf ball has a core compression in the range of 77 PGA to 87 PGA, a core diameter in the range of about 1.535 inches to 1.545 inches, a cover hardness in the range of 53 to 59 Shore D, and a dimple pattern based on the geometry of a rhombicosadodecahedron. An uninterrupted equatorial great circle path, corresponding to a mold parting line, is provided in the design for forming a cover of the golf ball in two parts. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.Type: GrantFiled: January 14, 2000Date of Patent: May 7, 2002Assignee: Dunlop Slazenger Group AmericasInventors: Sanjay M. Kuttappa, Lane D. Lemons, Matthew B. Stanczak, George R. Wallace
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Publication number: 20020049098Abstract: The golf ball comprises all known cores provided with a cover produced by a polymer blend that combines the durability of a conventional cover with excellent feel and playability. The cover formulation is a blend of various ethylene/methacrylic acid copolymers wherein at least one copolymer has a high modulus and at least one copolymer has a moderate modulus forming a miscible blend having a blend that maximizes durability while still maintaining feel and playability.Type: ApplicationFiled: June 5, 2001Publication date: April 25, 2002Inventors: Brent D. Emerson, George R. Wallace, Ronald L. Grey
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Publication number: 20020016229Abstract: A two piece golf ball has a core compression in the range of 75 PGA to 89 PGA, a core diameter in the range of about 1.535 inches to 1.545 inches, a cover hardness in the range of 42 to 60 Shore D, and a dimple pattern based on the geometry of a icosahedron. An uninterrupted equatorial great circle path, corresponding to a mold parting line, is provided in the design for forming a cover of the golf ball in two parts. A ball having such characteristics exhibits superior distance performance without compromising shot-making feel.Type: ApplicationFiled: June 19, 2001Publication date: February 7, 2002Inventors: Brent D. Emerson, George R. Wallace, Matthew B. Stanczak, Sanjay Kuttappa
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Publication number: 20020016227Abstract: The golf ball comprises all known cores provided with a cover produced by a polymer blend that combines the durability of a conventional cover with the feel of a traditional balata cover having a plurality of dimples in a modified dodecahedron pattern. The dodecahedron consists of twelve pentagons, which are subdivided into a total of sixty triangles. The triangles are then further subdivided into rows into which various diameter dimples are placed. The dimple pattern can be arranged to produce a pattern of ten great circles, which are free of dimples. The cover formulation is a blend of various ethylene/methacrylic acid copolymers wherein at least one copolymer has a high modulus and at least one copolymer has a moderate modulus forming a miscible blend having a PDI index that maximizes durability while still maintaining feel and playability.Type: ApplicationFiled: June 19, 2001Publication date: February 7, 2002Inventors: Brent D. Emerson, George R. Wallace, Matthew B. Stanczak, Sanjay Kuttappa
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Publication number: 20020016228Abstract: A golf ball with a conventional core covered with a polymer blend of at least two copolymers. The first blend polymer having a melt index of about 2 to 10 grams/10 min, a flexural modulus of 60,000 to 80,000 PSI, a shore D hardness of about 60 to 70; and the second blend copolymer having a melt index of about 0.2 to 2 grams/10 minutes, a flexural modulus of 2,000 to 8,000 PSI. The cover has dimples arranged in a pattern according to a dodecahedron, which is also arranged to coincide with pentagons, triangles and rows. In one embodiment the cover has 360 dimples of three different diameters and that optionally have a dual radius. Optionally the dimples are arranged to provide ten great circles free of dimples.Type: ApplicationFiled: June 19, 2001Publication date: February 7, 2002Inventors: Brent D. Emerson, George R. Wallace, Matthew B. Stanczak, Sanjay Kuttappa
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Publication number: 20010031672Abstract: An improved clear polyurethane coating for a golf ball comprises a coating that dries on-line at elevated temperatures in 10 minutes and without assistance of a plural machine; a method for coating golf balls with the fast-drying coating system. The coating system provides improved flight characteristics to the golf balls.Type: ApplicationFiled: December 20, 2000Publication date: October 18, 2001Inventors: Feng Cao, George R. Wallace