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US 6,634,965 B2Granted
Golf ball
AssigneeCallaway Golf Company
InventorsMichael S. Yagley, Steven S. Ogg, Pijush K. Dewanjee, David M. Bartels, Geoffrey P. M. Goodman
Life of this patent
Estimating the term…
Abstract
The present invention is a golf ball having a core, a cover and a lattice structure aerodynamic pattern. The core has a diameter of 1.53 inches to 1.55 inches, and a PGA compression of 60 to 75 points. The cover has a thickness of 0.060 inch to 0.090 inch. The cover has a Shore D hardness less than 58 as measured on the golf ball. The golf ball has a COR that is greater than 0.782 points at 143 feet per second.
Claims4
A golf comprising:
- a core having a diameter of 1.50 inches to 1.56 inches, the core comprising polybutadiene, zinc oxide in an amount of 7 to 15 part per hundred parts of polybutadiene, zinc diacrylate in an amount of 20 to 50 parts per hundred parts of polybutadiene;
- an initiator in an amount of 0.1 to 1.0 parts per hundred parts of polybutadiene, and tungsten in an amount of 5 to 10 parts per hundred parts of polybutadiene, the core having a PGA compression of 60 to 80 points;
- and
- a cover having a thickness of 0.060 inch to 0.090 inch, the cover comprising a thermoplastic material, and a Shore D hardness ranging from 52 to 58 as measured on the golf ball;
- wherein the golf ball has a PGA compression ranging from 80 to 95 points and a COR at 143 feet per second of 78.2 to 80.5, and the golf ball has a lattice structure aerodynamic pattern.
2 more elements
A golf ball comprising:
- a core having a diameter of 1.50 inches to 1.56 inches, the core having a PGA compression of 60 to 80 points;
- and
- a cover having a thickness of 0.060 inch to 0.090 inch, the cover composed of a thermoplastic material, the cover having a Shore D hardness less than 58 as measured on the golf ball;
- wherein the golf ball has COR at 143 feet per second of 78.2 to 80.5, and wherein the golf ball has a innersphere having a diameter in the range of 1.60 to 1.78 inches, a plurality of smooth portions on the surface of the innersphere and a plurality of lattice members.
1 more element
A golf ball comprising:
- a core having a diameter of 1.53 inches to 1.55 inches, the core having a PGA compression of 60 to 80 points, the core comprising a polybutadiene material;
- and
- a cover composed of an ionomer blend formed from a high acid ionomer resin neutralized with zinc in a range of 20 to 40 weight percent of the ionomer blend, and a terpolymer neutralized with magnesium in a range of 80 to 60 weight percent of the ionomer blend, the cover having a thickness of 0.060 inch to 0.090 inch, the cover having a Shore D hardness less than 58 as measured on the golf ball;
- wherein the golf ball has COR at 143 feet per second of 78.2 to 80.5, and wherein the golf ball has an innersphere having a diameter in the range of 1.60 to 1.78 inches, a plurality of smooth portions on the surface of the innersphere and a plurality of lattice members.
1 more element
A golf ball comprising:
- a core having a diameter of 1.53 inches to 1.55 inches, the core having a PGA compression of 60 to 80 points;
- and
- a cover composed of a thermoplastic material, the cover having a thickness of 0.060 inch to 0.090 inch, the cover having a Shore D hardness less than 58 as measured on the golf ball;
- wherein the golf ball has a COR that is greater than 0.790 points at 143 feet per second, and a true spin greater than 5200 rotations per minute off a sand wedge at a swing speed of 50 miles per hour, and wherein the golf ball has an innersphere having a diameter in the range of 1.60 to 1.78 inches, a plurality of smooth portions on the surface of the innersphere and a plurality of lattice members.
1 more element
Dependencies are inferred from the claim text.