Multi-layered core golf ball
AssigneeAcushnet Company
InventorsMichael J. Sullivan, Christopher Cavallaro, Jeffrey L. Dalton
Life of this patent
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Abstract
The present invention is directed towards a multi-layered core golf ball that comprises a center, a cover and a thin laminate comprising of at least one core layer formed around the center to create an inner ball, wherein the laminate includes at least one outer core layer that is relatively stiff and hard relative to the center, at least one outermost core layer that is heavily filled with a density increasing material and at least one core layer that functions as a moisture vapor barrier. One core layer may serve to provide all the functions in a single layer.
Claims16
A golf ball comprising:
- a multi-layer core having:
- a center having a Shore C surface hardness of less than about 80 and a compression of less than 70,
- at least one outer core layer having a Shore C hardness of greater than 80, and a specific gravity of greater than 1.25 g/cc;
- and
- a cover having a Shore D hardness of less than 65,
- wherein at least one outer core layer has a moisture vapor transmission rate that is lower than that of the cover.
A golf ball comprising:
- a multi-layer core having:
- a center having a Shore C surface hardness of less than about 80 and a compression of less than 70,
- a diameter from 1.58 inches to 1.66 inches,
- at least one outer core layer having a Shore C hardness of greater than 80, and a specific gravity of greater than 1.25 g/cc;
- and
- a cover having a Shore D hardness of less than 65.
A golf ball comprising:
- a multi-layer core having:
- a center having a Shore C surface hardness of less than about 80 and a compression of less than 70,
- at least one outer core layer having a Shore C hardness of greater than 80, and a specific gravity of greater than 1.25 g/cc;
- at least one cover layer;
- the at least one cover layer having a Shore D hardness of less than 65;
- and
- the at least one cover layer is selected from a cast or reaction-injection moldable thermosetting material.
Dependencies are inferred from the claim text.