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US 2002/0173383 A1Published application
Golf ball
AssigneeAcushnet Company
InventorMichael J. Sullivan
Life of this patent
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Abstract
A golf ball with a precise spin rate is disclosed. The distribution of weight among the layers within the golf ball relative to a centroid radius is realized to precisely control the moment of inertia of the ball. In accordance to one aspect of the present invention, the innermost core of the ball is made from a specific gravity reduced material, and a thin dense layer is accurately located either inside or outside of the centroid radius to create a high spin ball or a low spin ball, respectively, with a high compression and soft feel.
Claims14
A golf ball comprising:
- an inner core having a specific gravity of less than 0.9,
- a high-specific-gravity layer disposed around the core, said layer having a thickness between about 0.001 and about 0.03 inches and a specific gravity of greater than 1.8,
- and a cover of at least one layer disposed around the high-specific-gravity layer,
- wherein said inner core comprises a specific-gravity-reducing agent.
1 more element
Dependencies are inferred from the claim text.