Patent ID: 6719643
Filing Date: 2004-04-13
Classification: A63B

Abstract:
A golf club head comprising:a body having a crown, a sole, a ribbon, and a front wall with an opening, the crown having a thickness of 0.035 inch to 0.045 inch, the sole having a thickness of 0.035 inch to 0.045 inch, the body composed of a cast titanium alloy material, the crown, the sole, the ribbon and the front wall defining a hollow interior; and a striking plate insert positioned within the opening and welded to the body, the striking plate insert having a uniform thickness in the range of 0.080 inch to 0.120 inch, the striking plate insert composed of a formed titanium alloy material; an internal hosel positioned within the hollow interior of the body, the interior hosel extending from the crown to the sole; wherein the golf club head has a volume ranging from 360 cubic centimeters to 425 cubic centimeters; wherein the golf club head has a mass ranging from 185 grams to 215 grams; wherein the golf club head has a height ranging from 2.0 inches to 3.5 inches and a width ranging from 4.0 inches to 5.0 inches; wherein the golf club head has a coefficient of restitution ranging from 0.82 to 0.87; and wherein the golf club head has a moment of inertia, Izz, about the Z axis through the center of gravity of the golf club head ranging from 3400 g-cm2 to 3900 g-cm2.