Back to results
US 7,841,956 B2Granted
Golf ball
AssigneeCallaway Golf Company
InventorsDavid M. Melanson, Michael J. Tzivanis
Life of this patent
Estimating the term…
Abstract
A two-piece golf ball having a reaction injection molded polyurethane cover is disclosed herein. The golf ball has a core with a diameter preferably ranging from 1.610 inches to 1.670 inches, and a cover having a thickness preferably ranging from 0.015 inch to 0.045 inch. The cover also preferably has a plurality of deep apertures extending through the cover.
Claims2
A golf ball consisting essentially of:
- a core having a diameter ranging from 1.610 inches to 1.670 inches, the core having multiple layers, the core having a volume ranging from 38 cubic centimeters to 40 cubic centimeters;
- a cover having a thickness ranging from 0.015 inch to 0.045 inch, the cover having a volume ranging from 2 cubic centimeters to 3 cubic centimeters, the cover having a plurality of deep apertures extending through the cover, the cover composed of a reaction injection molded material and having a Shore C hardness ranging from 40 to 75;
- wherein the golf ball has a diameter ranging from 1.680 inches to 1.685 inches.
A golf ball consisting essentially of:
- a core having a volume ranging from 90 to 95% of the volume of the golf ball, the core having a diameter ranging from 1.610 inches to 1.670 inches, the core having multiple layers;
- a cover having a volume ranging 5% to 10% of the golf ball, the cover having a thickness ranging from 0.015 inch to 0.045 inch, the cover having a plurality of deep apertures extending through the cover the cover composed of a reaction injection molded polyurea material and having a Shore C hardness ranging from 40 to 75;
- wherein the golf ball has a diameter ranging from 1.680 inches to 1.72 inches.
Dependencies are inferred from the claim text.