Patent ID: 6638182
Filing Date: 2003-10-28
Classification: A63B

Abstract:
A wood-type golf club head comprising:a body having a crown, a sole, a ribbon, a striking plate and a hollow interior, the body composed of a titanium alloy material, the striking plate having an interior surface toward the hollow interior and a smooth exterior surface opposite the interior surface, the striking plate having a thickness range of 0.010 inch to 0.200 inch, the body having a volume of 250 cubic centimeters to 400 cubic centimeters; and a thin layer disposed on the exterior surface of the striking plate, the thin layer composed of a material having a density lower than the density of the striking plate and selected from the group consisting of polyurethanes, polycarbonates, polyimides and polyamides, the thin layer having a thickness of 0.005 inch to 0.025 inch, the thin layer having a plurality of scorelines thereon.