Patent ID: 7582027
Filing Date: 2009-09-01
Classification: A63B

Abstract:
1. A golf ball comprising: an inner core having a first outer surface and a geometric center and being formed from a first substantially homogenous formulation throughout such that the inner core has a hardness of 30 Shore C to 45 Shore C; an outer core layer disposed about the inner core having a second outer surface and an inner surface and being formed from a second substantially homogenous formulation throughout such that the outer core layer has a hardness of 60 Shore C to 95 Shore C; and a cover layer disposed about the outer core layer; wherein the geometric center, the first and second outer surfaces, and the inner surface each have a hardness, the hardness of the first outer surface being lower than the hardness of the geometric center to define a negative hardness gradient, and the hardness of the second outer surface being greater than the hardness of the inner surface to define a positive hardness gradient.