Patent ID: 7473189
Filing Date: 2009-01-06
Classification: A63B,Y10T

Abstract:
1. A putter club head comprising: a club head body having a toe, a heel, a sole having a radius of curvature, a front face; a top surface opposite the sole, the top surface being concave and having a radius of curvature, wherein the top surface radius of curvature is greater than the sole radius of curvature; a back opposite and parallel to the front face; a hosel coupled to the top surface and configured to accept a shaft, wherein the shaft connects to the hosel at substantially the midpoint of the top surface, wherein the midpoint of the top surface comprises the intersection of the midpoint measured form the front face to the back, and from the toe to the heel; wherein the toe, extending from the sole to the top surface is thicker than the heel, extending from the sole to the top surface; a first cavity adjacent the toe that extends into the body from the back towards the front face; a second cavity adjacent the heel that extends into the body from the back towards the front face; wherein, the first cavity extends into the body from the back towards the front face a greater distance than the second cavity; wherein, the first cavity has a volume greater than the volume of the second cavity; a flange having a top flange surface and a bottom flange surface, wherein the flange extends outwardly substantially normal to the back of the body, and wherein the flange extends continuously along the length of the body, from the toe to the heel, adjacent the sole, wherein the flange comprises a variable thickness; wherein the club head body has a center of gravity along a shaft axis defined by a hosel; and wherein the club head body at the heel is weight compensated such that the center of gravity of the club head body lies on the shaft axis.