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US 6,743,123 B2Granted
Golf ball having a high moment of inertia and low driver spin rate
AssigneeAcushnet Company
InventorMichael J. Sullivan
Life of this patent
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AssigneeAcushnet Company
InventorMichael J. Sullivan
Estimating the term…
A progressive performance golf ball is disclosed. The progressive performance golf ball includes a low spin, high moment of inertia core assembly, which may comprise a low specific gravity core and/or non-continuous high specific gravity intermediate layer. This sub-assembly is encased within a soft cover with Shore D hardness less than 65. The low specific gravity core is preferably made from a foamed polymer, and the non-continuous high specific gravity core is preferably a geodesic or polyhedron screen or a perforated shell. The ball may comprise a non-continuous intermediate layer and a second intermediate layer, wherein one or both of the intermediate layers comprise high specific gravity materials. The cover is preferably made from thermoset polyurethane. Advantageously, the non-continuous screen or shell have a spring-like property, which allows the ball to readily regain its spherical shape after impact with a golf club.
A golf ball comprising an intermediate layer covering a core, wherein the intermediate layer is encased by a cover, wherein the intermediate layer comprises a non-continuous layer having a specific gravity of greater than 1.5 and a thickness from 0.025 mm to 1.27 mm, and the non-continuous layer is positioned at a radial distance outside of the centroid radius.
A golf ball comprising a cover, a core and an intermediate layer, wherein the cover has a hardness of less than 65 Shore D and wherein the moment of inertia of the ball is greater than about 0.46 oz·in2, wherein the intermediate layer is a non-continuous, thin dense layer having a thickness from about 0.127 mm to about 0.762 mm disposed radially outside of the centroid radius.
Dependencies are inferred from the claim text.