Patent ID: 6620056
Filing Date: 2003-09-16
Classification: A63B

Abstract:
A golf club head comprising:a face member composed of a forged metal material, the face member comprising a face plate for striking a golf ball having an exterior surface and an interior surface, the face plate extending from a heel section of the golf club head to a toe section of the golf club head, a face extension extending laterally inward from a perimeter of the face plate, and an interior tubing for receiving a shaft; a crown secured to the upper portion of the face extension at a distance ranging from 0.2 inch to 1.0 inch from the perimeter of the face plate; and a sole secured to the lower portion of the face extension at a distance ranging from 0.2 inch to 1.0 inch from the perimeter of the face plate; wherein the face plate comprises a central circular region having a base thickness ranging from 0.090 inch to 0.110 inch, a first concentric region having a first thickness ranging from 0.082 inch to 0.097 inch wherein the base thickness is greater than the first thickness, a second concentric region having a second thickness ranging from 0.070 inch to 0.94 inch wherein the first thickness is greater than the second thickness, a third concentric region having a third thickness ranging from 0.070 to 0.090 inch wherein the second thickness is greater than the third thickness, and a periphery region having a fourth thickness ranging from 0.061 inch to 0.069 inch wherein the fourth thickness is less than the third thickness; and wherein the golf club head has a volume no greater than 400 cubic centimeters and a coefficient of restitution of ranging from 0.80 to 0.93 under standard USGA conditions.