Patent ID: 8152652
Filing Date: 2012-04-10
Classification: A63B

Abstract:
1. A golf club head comprising: a striking face with a frontal surface area of greater than about 3500 mm a posterior body portion further comprising a crown portion and a sole portion, wherein said crown portion is coupled to an upper portion of said striking face and said sole portion coupled to a lower portion of said striking face; and said frontal surface area of said striking face further comprising, a bulge radius spanning in an approximately horizontal direction across said frontal surface area of said striking face from a heel portion to a toe portion; and a roll radius spanning in an approximately vertical direction across said frontal surface area of said striking face from a crown portion to a sole portion, wherein said bulge radius is tilted in a direction of high toe to low heel; and wherein said roll radius is tilted in a direction of high toe to low heel wherein a tilt angle of said bulge radius and said roll radius is between about 1 degree to about 16 degrees.