Multi-layer core golf ball
First Claim
Patent Images
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 85 or less, an outer surface Shore C hardness (Hcenter surface) of 50 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 70 or greater;
wherein Hcenter<
Hintermediate, Houter core<
Hintermediate, and Houter core−
Hcenter is from 1 to 30.
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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 less than the Shore C hardness of the geometric center of the center.
50 Citations
20 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 85 or less, an outer surface Shore C hardness (Hcenter surface) of 50 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 70 or greater; wherein Hcenter<
Hintermediate, Houter core<
Hintermediate, and Houter core−
Hcenter is from 1 to 30. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. 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 55 to 83, an outer surface Shore C hardness (Hcenter surface) of from 50 to 80, wherein Hcenter surface<
Hcenter;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 70 or greater; wherein Hcenter<
Hintermediate, Houter core<
Hintermediate, and Houter core−
Hcenter is from 1 to 25. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification