Patent ID: 7086961

Claim:
A golf club head comprising: a putter club head body having a cavity formed therein, said cavity being defined by a pair of inner surfaces of said club head body; an insert comprising a plate mechanically coupled to a mass via a damper, wherein said plate has a striking surface and a pair of edge surfaces in mating engagement with said pair of inner surfaces of said club head body, wherein said mass is substantially unconstrained by said club head body, and wherein said insert is removeably integrated with said club head body and positioned within said cavity such that said striking surface of said plate is substantially coplanar with and rigidly coupled to a front face of said club head body; said mass and said damper are configured to produce a predetermined frequency response when said striking surface impacts an object: and said cavity having a width dimension greater than a width dimension of said mass and said damper such that said mass and said damper have no contact with said pair of inner surfaces.