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US 6,599,203 B1Granted
Golf ball
AssigneeSpalding Sports Worldwide, Inc.
InventorsMichael J. Sullivan, John L. Nealon, Thomas J. Kennedy, III, Mark L. Binette
Life of this patent
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AssigneeSpalding Sports Worldwide, Inc.
InventorsMichael J. Sullivan, John L. Nealon, Thomas J. Kennedy, III, Mark L. Binette
Estimating the term…
The present invention is directed to improved multi-layer golf ball compositions and the resulting regulation balls produced using these compositions. In this regard, a lighter core is produced and metal particles, or other heavy weight filler materials, are included in the cover compositions. This results in a molded golf ball exhibiting enhanced interior perimeter weighting. Preferably, the particles are included in an inner cover layer (or mantle) of a solid, three-piece multi-layered golf ball. The weight of the core is reduced in order to produce an overall golf ball which meets, or is less than, the 1.62 ounce maximum weight limitation specified by the United States Golf Association. It has been found that the combination of the present invention produces a golf ball with an increased moment of inertia and/or a greater radius of gyration and thus generates lower spin. This results in a golf ball exhibiting enhanced distance without substantially effecting the feel and durability characteristics of the ball.
A multi-layer golf ball comprising a core, an inner cover layer and an outer cover layer having a dimpled surface, wherein said core has a diameter from 1.46 to 1.51 inches and a weight of 31-33 grams, an inner cover layer having a thickness of from 0.045-0.55 inches, a weight, with core, of 37-40 grams and an outer cover layer having a thickness of from 0.050-0.060 inches, and a weight, with core and inner core layer, of 45 to 46 grams.
A golf ball having a greater moment of inertia comprising a solid diene core, an inner ionomer resin cover layer and an outer ionomer resin cover layer having a patterned contoured surface, wherein said core has a diameter of 1.46 to 1.48 inches and a weight of 31 to 33 grams, and the inner cover layer has a thickness of 0.045 to 0.055 inches and a weight, with core, of 37 to 40 grams.
Dependencies are inferred from the claim text.