Multi-layer golf ball having velocity gradient from slower center to faster cover
AssigneeAcushnet Company
InventorsHerbert C. Boehm, Michael J. Sullivan, Steven Aoyama, David A. Bulpett, Derek A. Ladd
Life of this patent
Estimating the term…
Abstract
The present invention is directed to multi-layer golf balls having a center, a cover layer, and at least one intermediate layer between the core and the cover layer. The center, the at least one intermediate layer and the cover are constructed to have different initial velocities and COR such that the gradients of initial velocities and COR progress from a slower center to a faster cover.
Claims25
A multi-layer golf ball comprising a center, a cover layer, and at least two intermediate layers between the center and the cover layer, wherein
- each subassembly of the golf ball has a combined coefficient of restitution value that is less than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.003,
- wherein the subassembly comprises at least the center, and
- wherein the center has a coefficient of restitution value of less than 0.800.
A multi-layer golf ball comprising a center, a cover layer, and at least two intermediate layers between the center and the cover layer, wherein
- each subassembly of the golf ball has a combined coefficient of restitution value that is less than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.003,
- wherein the subassembly comprises at least the center, and
- wherein the change in coefficient of restitution from one subassembly to the next larger assembly per the thickness of the next larger subassembly is less than 0.00010 per thousandth of an inch.
A multi-layer golf ball comprising a center, a cover layer, and an intermediate layer between the core and the cover layer, wherein
- each subassembly of the golf ball has a combined coefficient of restitution value that is less than the combined coefficient of restitution of said subassembly plus the next outer layer by a value of at least 0.015,
- wherein the subassembly comprises at least the center,
- and wherein the change in coefficient of restitution from one subassembly to the next larger assembly per the thickness of the next larger subassembly is less than 0.00020 per thousandth of an inch.
Dependencies are inferred from the claim text.