Patent ID: 6860823
Filing Date: 2005-03-01
Classification: A63B

Abstract:
1. A golf club head comprising: a body having a crown, a sole, a front wall with an opening, the front wall having an upper edge and a lower edge defining a groove, the body composed of plies of pre-preg material; a face component having a striking plate and a return portion, the face component having a uniform thickness in the range of 0.040 inch to 0.250 inch, the face component composed of a metal material and having a mass ranging from 40 grams to 80 grams; and wherein the return portion of the face component and the upper edge and lower edge of the body form a sandwich structure having a thickness ranging 6.0 nm to 20 mm; wherein the golf club head has a coefficient of restitution of 0.80 to 0.94, and the golf club head has a volume ranging from 300 cubic centimeters to 600 cubic centimeters; wherein the moment of inertia about the Jzz axis through the center of gravity is greater than 3000 grams-centimeter squared, and the moment of inertia about the Iyy axis through the center of gravity is greater than 1990 grams-centimeter squared.