Dual cores for golf balls
AssigneeSpalding Sports Worldwide, Inc.
InventorsMichael J. Sullivan, R. Dennis Nesbitt
Life of this patent
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Abstract
The present invention is directed to a golf ball comprising a dual core component. The dual core comprises an interior center component formed from a thermoset material, a thermoplastic material, or combinations thereof. The dual core also comprises a core layer disposed about the center component, formed from a thermoset material, a thermoplastic material, or combinations thereof. The present invention golf ball may further comprise an outer core layer that surrounds the dual core. The resulting multi-layered golf ball of the present invention provides for enhanced distance without sacrificing playability or durability when compared to known golf balls.
Claims15
A golf ball comprising:
- a core having at least a center component and a core layer disposed about said center component, wherein said core layer comprises more than one layer;
- and, a cover disposed about said core;
- wherein said center component comprises a thermoset material and said core layer comprises a thermoplastic material;
- wherein said cover includes an outer cover layer having a Shore D hardness of from about 40 to 55 and an inner cover layer having a Shore D hardness of 60 or more, and wherein said outer cover layer is softer than said inner cover layer.
A golf ball comprising:
- a core having at least a center component and a core layer disposed about said center component;
- and, a cover disposed about said core;
- wherein said center component comprises a thermoset material and said core layer comprises a thermoplastic material, wherein said thermoset material comprises a polyurethane;
- wherein said cover includes an outer cover layer having a Shore D hardness of from about 40 to 55 and an inner cover layer having a Shore D hardness of 60 or more, and wherein said outer cover layer is softer than said inner cover layer.
Dependencies are inferred from the claim text.