Patent ID: 7264557

Claim:
A golf putter comprising a shaft and a putting head connected to the shaft, the putting head comprising: (a) a first contact surface, wherein the first contact surface is partially-spherical and further comprises a first radius, wherein the radius of the partially-spherical face is at least the same measurement as a golf ball radius, a first perimeter edge, a second perimeter edge, a first apex, and a first depth, wherein the first depth is defined as a distance between the first apex and a first plane defined by the first perimeter edge and the second perimeter edge, and wherein the first depth is at least one-half the radius of a golf ball; (b) a rear wall, the rear wall being opposite the first contact surface wherein the rear wall comprises a second contact surface that is concave and further comprises a second radius, wherein the second radius is at least the same measurement as a golf ball radius, a third perimeter edge, a fourth perimeter edge, a second apex, and a second depth, wherein the second depth is defined as a distance between the second apex and a second plane defined by the third perimeter edge and the fourth perimeter edge, and wherein the second depth is at least one-half the radius of a golf ball; (c) a top surface, the shaft being connected to the putting head at the top surface, the top surface being connected to the first contact surface and to the rear wall; and (d) a sole, wherein the sole is opposite the top surface and connected to the first contact surface and the rear wall; (e) wherein the distance between the top surface and the sole is at least one-half the radius of a golf ball.