Patent ID: 8216082
Filing Date: 2012-07-10
Classification: A63B

Abstract:
1. A putter head comprising: a top and a bottom; a front face having a front width and a rear portion having a rear width; front and rear center sections with the front center section extending behind the front face and the rear section extending behind the front center section to the rear face; front and rear heel sections that extend laterally outwardly from a first side of the center sections and together comprise at least about 11% of a total mass of the putter head; front and rear toe sections that extend laterally outward from a second side of the center sections and together comprise at least about 11% of the total mass of the putter head; a center of gravity located in one of the center sections and approximately centered between the toe and the heel sections; wherein a medial axis parallel to the front face and spaced approximately equidistant between the front face and the rear face defines a boundary between the front and rear heel sections, the front and rear toe sections and the front and rear center sections, respectively; a Z axis and wherein the moment of inertia about the Z axis ranges between about 400 kg-mm an X axis and wherein the moment of inertia about the X axis ranges between about 160 kg-mm wherein the shortest distance between the center of gravity and the front face is at least as great as a shortest distance between the center of gravity and the rear portion; and wherein the shortest distance between the center of gravity and the top is at least as great as a shortest distance between the center of gravity and the bottom, and wherein the shortest distance between the center of gravity and the front face ranges between about 30 mm and 55 mm.