Patent ID: 7270609
Filing Date: 2007-09-18
Classification: A63B

Abstract:
1. A golf putter head having a heel, a toe and a face surface for hitting a ball, the head having a weight distribution that establishes first, second and third inertial moments of the head about three axes passing through the center of gravity of the head in a state in which the head is placed on a horizontal plane at a specified lie angle and loft angle, wherein: the first inertial moment occurs about a horizontal axis which extends along the direction between the heel and the toe, passes through the center of gravity of the head and is parallel to the face surface; the second inertial moment occurs about a vertical axis which passes through the center of gravity of the head; the third inertial moment occurs about an axis which passes through the center of gravity of the head and is perpendicular to said first and second axes; and wherein the second inertial moment is (1) smaller than the first inertial moment and (2) smaller than the third inertial moment.