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US 6,471,605 B2Granted
Golf ball with pyramidal protrusions
AssigneeCallaway Golf Company
InventorSteven S. Ogg
Life of this patent
Estimating the term…
Abstract
A golf ball approaching zero land area is disclosed herein. The golf ball has an innersphere with a plurality of pyramidal projections. Each of the plurality of projections has an apex that extends to a height to conform with the 1.68 inches requirement for USGA approved golf balls. The plurality of pyramidal projections extend 0.005 inch to 0.015 inch from the innersphere surface. The outermost 0.002 inch of the golf ball has a minimal volume.
Claims11
A golf ball comprising:
- a core;
- a cover disposed over the core, the cover having an innersphere with a surface and a plurality of pyramidal projections disposed on the innersphere surface, each of the pyramidal projections extending from 0.005 inch to 0.015 inch from the innersphere surface, each of the plurality of pyramidal projections having at least three concave sides defined by at least three edges, the at least three concave sides meeting at an apex.
A non-dimpled golf ball comprising:
- a sphere having a diameter in the range of 1.60 inches to 1.70 inches;
- a plurality of pyramidal projections extending outward from the sphere, each of the pyramidal projections having an apex that extends from a surface of the sphere in a range of 0.005 inch to 0.015 inch, each of the plurality of pyramidal projections having at least three concave sides defined by at least three edges, the at least three concave sides meeting at an apex;
- a plurality of smooth portions on the surface;
- and
- wherein the entire surface of the golf ball is composed of the plurality of pyramidal projections and the plurality of smooth portions.
2 more elements
A golf ball comprising:
- a solid core composed of a polybutadiene material and having a diameter of from 1.30 inches to 1.55 inches;
- an intermediate layer disposed over the core, the intermediate layer composed of a blend of ionomers and having a thickness ranging from 0.040 inch to 0.080 inch;
- and
- a cover disposed over the intermediate layer, the cover having a thickness of from 0.020 inch to 0.040 inch, the cover having a surface with a plurality of pyramidal projections thereon wherein an apex of at least one of the plurality of pyramidal projections defines the greatest extent of the golf ball, each of the plurality of pyramidal projections having at least three concave sides defined by at least three edges, the at least three concave sides meeting at the apex, wherein the total volume of the outermost 0.002 inch of all of the plurality of pyramidal projections is less than 0.00213 cubic inch.
1 more element
Dependencies are inferred from the claim text.