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US 2016/0250522 A1Published application
Multi-Layer Golf Ball
AssigneeNIKE, Inc.
InventorsNicholas Yontz, Chen-Tai Liu
Life of this patent
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Abstract
A multi-layer golf ball that provides a consistent feel when struck with different golf clubs has a core center having a diameter D1 and a hardness H1; a first intermediate layer outward from and surrounding the core center; a second intermediate layer outward from and surrounding the first intermediate layer having a diameter D3 and a hardness H3; and a cover outward from and surrounding the second intermediate layer; wherein the ratio of H3 to D3 is at least about 94% of the ratio of H1 to D1 (H3/D3≧0.94 H1/D1).
Claims20
A golf ball, comprising:
- a core center having a diameter in millimeters Di and a Shore D hardness Hi;
- a first inter nediate layer outward from and surrounding the core center having a diameter in millimeters D2 and a Shore D hardness H2;
- a second intermediate layer outward from and surrounding the first intermediate layer having a diameter in millimeters D3, a thickness in millimeters T3, and a Shore D hardness H3;
- and
- a cover outward from and surrounding the second intermediate layer having a diameter in millimeters D4 and a Shore D hardness H4;
- wherein T3 is at least about 0.65 mm;
- and
- wherein the ratio of H3 to D3 minus the ratio of H1 to D1 (H3/D3−H1/D1) is at least about −0.1 (Shore D hardness/mm).
5 more elements
A golf bail, comprising:
- a core center having a diameter Di and a hardness H1;
- a first intermediate layer outward from and surrounding the core center;
- a second intermediatelayer outward from and surrounding the first intermediate layer having a diameter D3 and a hardness H3;
- and
- a cover outward from and surrounding the second intermediate layer;
- wherein the ratio of H3 to D3 is at least about 94% of the ratio of H1 to D1 (H3/D3≧0.94 H1/D1).
3 more elements
Dependencies are inferred from the claim text.