Patent Number: 6,945,878

Title: Perimeter weighted multi-layer golf ball

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.

Inventors: Binette; Mark L. (Ludlow, MA), Nesbitt; R. Dennis (Beverly Hills, FL), Kennedy, III; Thomas J. (Wilbraham, MA), Nealon; John L. (Springfield, MA), Sullivan; Michael J. (Barrington, RI)

Assignee: Callaway Golf Company

International Classification: A63B 45/02 (20060101); A63B 45/00 (20060101); A63B 37/00 (20060101); A63B 43/00 (20060101); A63B 37/12 (20060101); A63B 037/06 ()

Expiration Date: 9/20/02017