Patent ID: 7278927
Filing Date: 2007-10-09
Classification: A63B

Abstract:
1. A golf club head comprising: a body having a face wall, a crown wall, a sole wall, a heel wall, a rear wall, and a toe wall, wherein the face wall has an approximately rectangular shape and the face wall has a variable thickness; wherein the golf club head has a volume ranging from 420 cubic centimeters to 470 cubic centimeters and a mass ranging from 190 grams to 250 grams; wherein the face wall has an aspect ratio greater than 1.8 for a golf club head; wherein the golf club head has a moment of inertia about the Izz axis through the center of gravity of the golf club head which is greater than 4000 grams-centimeters squared, and a moment of inertia about the Ixx axis through the center of gravity of the golf club head which is greater than 3000 grams-centimeters squared; wherein the golf club head has a coefficient of restitution that ranges from 0.825 to 0.883, and the golf club head has a delta of the coefficient of restitution between a geometric face center of the face wall and a location 0.5 inch sole-ward from the face center is greater than zero and less than 0.065.