Multi-layer core golf ball
First Claim
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 consists of:
- a center having a diameter of from 0.50 inches to 1.50 inches and a center hardness (H) of from 20 Shore C to 70 Shore C;
an intermediate core layer having a surface hardness (I) of from 70 Shore D to 80 Shore D; and
an outer core layer having a surface hardness (S) of from 20 Shore C to 70 Shore C;
wherein H<
I and S<
I; and
wherein the cover is a two-layered cover including an inner cover layer having a surface hardness of 60 Shore D or greater, and an outer cover layer having a surface hardness of 20 to 70 Shore D.
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Accused Products
Abstract
Golf balls having a multi-layer core and a cover are disclosed. The multi-layer core contains a center and an outer core layer that are both soft relative to a hard intermediate core layer. The outer core layer is thin relative to the center and outer core layer. In one embodiment, the relatively hard intermediate core layer has a surface hardness of 80 to 90 Shore C which is greater than the center hardness and surface hardness of the outer core layer. In another embodiment, the cover includes an inner cover layer having a surface hardness of 60 Shore D or greater and an outer cover layer having a surface hardness of 20 to 70 Shore D.
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Citations
10 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 consists of:
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a center having a diameter of from 0.50 inches to 1.50 inches and a center hardness (H) of from 20 Shore C to 70 Shore C; an intermediate core layer having a surface hardness (I) of from 70 Shore D to 80 Shore D; and an outer core layer having a surface hardness (S) of from 20 Shore C to 70 Shore C; wherein H<
I and S<
I; and
wherein the cover is a two-layered cover including an inner cover layer having a surface hardness of 60 Shore D or greater, and an outer cover layer having a surface hardness of 20 to 70 Shore D. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. 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 consists of:
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a center having a diameter of from 0.50 inches to 1.50 inches and a center hardness (H) of at least 70 Shore C; an intermediate core layer having a surface hardness (I) of from 70 Shore D to 80 Shore D; and an outer core layer having a surface hardness (S) of at least 70 Shore C;
wherein H<
I and S<
I, wherein the center, the intermediate layer, and the outer core layer each has a specific gravity of from 1.05 g/cc to 1.25 g/cc.
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Specification