Patent ID: 6354961
Filing Date: 2002-03-12
Classification: A63B

Abstract:
A golf club head designed to augment ball exit velocity, comprising: a club head body having a face wall, a generally rearwardly extending perimeter wall about at least a portion of the face wall, the face wall being relatively thin to maximize face deflection and face energy applied to the ball without exceeding the elastic limit of the face, said face thickness being selected so the face has a first low modulus of elasticity in a first lower portion in a lower swing speed range, and means in the club head body including the face wall for providing the face wall with a second higher modulus of elasticity in a second higher swing speed range, said means in the club head for providing the face wall with a second higher modulus of elasticity in a second speed range including a socket formed on the face wall and a shaft extending forwardly from the rear of the club head carrying a piston slidable in the socket, said piston being spaced from a bottom of the socket, the spacing between the piston and the bottom of the socket determining the face displacement at which the modulus of elasticity of the face increases.