Variable density core golf balls
First Claim
1. A golf ball comprising a cover and at least three inner layers wherein the specific gravity of the inners layer follows a decreasing gradient from the center of the ball outward, wherein the specific gravity of an inside inner layer is at least about one and a half times the specific gravity of an adjacent outside inner layer, and wherein the innermost of the inner layers is a core and wherein the specific gravity of the innermost inner layer is greater than about 1.75.
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0 Petitions
Accused Products
Abstract
A golf ball is provided having a modified density gradient among the inner layers to produce a desired high or low moment of inertia and controlled spin rate is disclosed. The golf ball has three or more inner layers in addition to a cover, and the density of the inner layers is selected such that the layers inside the cover have a density progression from the core to the cover or from the cover to the core.
60 Citations
3 Claims
- 1. A golf ball comprising a cover and at least three inner layers wherein the specific gravity of the inners layer follows a decreasing gradient from the center of the ball outward, wherein the specific gravity of an inside inner layer is at least about one and a half times the specific gravity of an adjacent outside inner layer, and wherein the innermost of the inner layers is a core and wherein the specific gravity of the innermost inner layer is greater than about 1.75.
Specification
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- Resources
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Current AssigneeAcushnet Company (FILA Holdings Corp.)
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Original AssigneeAcushnet Company (FILA Holdings Corp.)
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InventorsLadd, Derek A., Sullivan, Michael J., DeSimas, Antonio U., Hebert, Edmund A.
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Primary Examiner(s)Gorden, Raeann
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Application NumberUS12/358,293Publication NumberTime in Patent Office1,145 DaysField of Search473/376, 473/373, 473/374US Class Current473/376CPC Class CodesA63B 37/0003 Golf ballsA63B 37/0066 Density; Specific gravityA63B 37/0082 Density; Specific gravityA63B 37/0091 Density distribution amongs...
