Multi-layer core golf ball
First Claim
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1. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and comprises:
- a center having a diameter of from 0.50 inches to 1.50 inches, a center Shore C hardness (Hcenter) of 80 or less, an outer surface Shore C hardness (Hcenter surface) of 30 or greater, wherein Hcenter surface>
Hcenter;
an intermediate core layer having an outer surface Shore C hardness (Hintermediate) of 75 or greater; and
an outer core layer having an outer surface Shore C hardness (Houter core) of 60 or greater;
wherein Hcenter surface<
Hintermediate, Houter core<
Hintermediate, and Houter core−
Hcenter≦
20.
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Abstract
Golf balls comprising a multi-layer core and a cover are disclosed. The multi-layer core comprises a center and an outer core layer that are both soft relative to a hard intermediate core layer. The Shore C hardness of the outer surface of the center is preferably greater than the Shore C hardness of the geometric center of the center.
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Citations
15 Claims
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1. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and comprises:
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a center having a diameter of from 0.50 inches to 1.50 inches, a center Shore C hardness (Hcenter) of 80 or less, an outer surface Shore C hardness (Hcenter surface) of 30 or greater, wherein Hcenter surface>
Hcenter;an intermediate core layer having an outer surface Shore C hardness (Hintermediate) of 75 or greater; and an outer core layer having an outer surface Shore C hardness (Houter core) of 60 or greater; wherein Hcenter surface<
Hintermediate, Houter core<
Hintermediate, and Houter core−
Hcenter≦
20. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A golf ball comprising a core and a cover, wherein the core has an overall diameter of from 1.40 inches to 1.60 inches and comprises:
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a center having a diameter of from 0.50 inches to 1.50 inches, a center Shore C hardness (Hcenter) of from 20 to 75, an outer surface Shore C hardness (Hcenter surface) of from 25 to 85, wherein Hcenter surface−
Hcenter≧
1;an intermediate core layer having an outer surface Shore C hardness (Hintermediate) of 80 or greater; and an outer core layer having an outer surface Shore C hardness (Houter core) of 60 or greater; wherein Hcenter surface<
Hintermediate, Houter core<
Hintermediate, and Houter core−
Hcenter≦
20. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification