Golf ball with an aerodynamic surface on a thermoset cover
AssigneeCallaway Golf Company
InventorSteven S. Ogg
Life of this patent
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Abstract
A dimple pattern for a golf ball with a thermoset polyurethane cover is disclosed herein. The dimple pattern has multiple sets of dimples, each set of dimples having a different diameter. A preferred set of dimples is seven different dimples. The dimples may cover as much as eighty-six percent of the surface of the golf ball. The unique dimple pattern allows a golf ball with a thermoset polyurethane cover to have shallow dimples with steeper entry angles. The unique dimple pattern also allows a golf ball with a thermoset polyurethane cover to have greater low speed lift with a lower high speed drag.
Claims16
A golf ball having a thermoset cover with a surface thereon, the golf ball comprising:
- a plurality of different sets of dimples disposed on the surface of the thermoset cover, each of the different sets of dimples having a different diameter than any other set of dimples, the plurality of different sets of dimples covering at least eighty percent of the surface of the golf ball;
- wherein the golf ball has a lift coefficient greater than 0.18 at a Reynolds number of 70,000 and 2000 rpm, and a drag coefficient less than 0.230 at a Reynolds number of 180,000 and 3000 rpm.
The golf ball according to claim 11 wherein a first row of dimples on either side of an equator of the golf ball consists of the fifth plurality of dimples, a second row of dimples on either side of the equator of the golf ball consists of the fifth plurality of dimples, and a third row of dimples on either side of the equator of the golf ball consists of the fourth plurality of dimples.
A golf ball having a thermoset cover with a surface thereon, the golf ball comprising:
- a plurality of different sets of dimples disposed on the surface of the thermoset cover, each of the different sets of dimples having a different diameter than any other set of dimples, the plurality of different sets of dimples covering at least eighty percent of the surface of the golf ball;
- wherein the golf ball has a lift coefficient greater than 0.18 at a Reynolds number of 70,000 and 2000 rpm, and a drag coefficient less than 0.228 at a Reynolds number of 180,000 and 3000 rpm.
A golf ball having a thermoset cover with a surface thereon, the golf ball comprising:
- a plurality of different sets of dimples disposed on the surface of the thermoset cover, each of the different sets of dimples having a different diameter than any other set of dimples, the plurality of different sets of dimples covering at least eighty percent of the surface of the golf ball;
- wherein the golf ball has a lift coefficient greater than 0.20 at a Reynolds number of 70,000 and 2000 rpm, and a drag coefficient less than 0.230 at a Reynolds number of 180,000 and 3000 rpm.
Dependencies are inferred from the claim text.