Perimeter weighted multi-layer golf ball
AssigneeSpalding Sports Worldwide, Inc.
InventorsMark L. Binette, R. Dennis Nesbitt, Thomas J. Kennedy III, John L. Nealon, Michael J. Sullivan
Life of this patent
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Abstract
A golf ball is described that includes a spherical core, an inner cover or mantle layer, and an outer cover layer. A wide array of ionomeric materials are noted for use in the various cover layers. The mantle and the outer cover layers exhibit different Shore D hardness values and at least one of the layers includes a heavy weight filler material to enhance the interior perimeter weight of the ball. In several particular versions of the golf balls, the filler material is present in an amount of at least 10% by weight based upon the weight of the layer or layers within which the filler material is incorporated.
Claims29
A multi-layer golf ball, comprising:
- a core assembly;
- a first cover layer disposed on said core assembly;
- a second cover layer disposed about said first cover layer, said second cover layer defining a plurality of dimples along the exterior surface of said second cover, the hardness of said second cover being less than the hardness of said first cover;
- and
- at least 10 parts by weight of a density-increasing filler material disposed in at least one of said first cover layer and said second cover layer.
A multi-layer golf ball comprising:
- a core;
- a first cover layer disposed on said core, said first cover layer including an ionomeric material;
- a second outermost cover layer disposed on said first cover layer, said second cover layer defining a plurality of dimples along the exterior of said golf ball and said dimples constituting at least 70 percent of the surface area of said golf ball, said second cover having a hardness that is softer than the hardness of said first cover layer and within a range of from about 58 to about 65 on the Shore D scale;
- and
- at least 10 parts by weight of a density-increasing filler material disposed in at least one of said first cover layer and said second cover layer, said parts by weight based on the weight of the respective layer(s) within which is disposed said filler material.
Dependencies are inferred from the claim text.