Patent ID: 7431659

Claim:
A golf club head, comprising: a body having a striking face, a pair of side faces adjacent to the striking face, a rear face opposite the striking face, a top surface adjacent to the striking face, the pair of side faces, and the rear face, and a bottom surface opposite the top surface; an opening within the body extending throughout the thickness of the body, wherein the opening is sized and dimensioned to be greater than a diameter of a golf ball to receive the golf ball loosely such that the golf ball freely rolls along a playing surface during at least a portion of a swing of the golf club but so long as it remains in the opening it is restricted to moving only in the direction of the swing and only at the speed of the swing, wherein the opening is positioned behind the front surface for imparting a velocity to the golf ball during at least a portion of the swing and follow through of the golf club in the general direction of the swing and follow through and for thereafter releasing the golf ball when the golf club head is raised a distance above the ground at least equal to the diameter of the golf ball in order to hone a player's putting stroke, and wherein the opening is larger at the bottom surface of the golf club head than at the top surface of the golf club head to provide for early release of the golf ball during the swing; and an orifice for receiving a club shaft.