Golf driver with variable weighting for changing center of gravity

Claim 1

In a golf club head having a sole plate and a face plate having front and rear surfaces extending upwardly substantially normally from said sole plate, said sole plate having opposing bottom and top surfaces, the improvement comprising: first and second similarly dimensional chambers formed along the rear surface of said face plate, said chambers running substantially the entire horizontal extent of said face plate in side by side substantially parallel relationship to each other, a plurality of sets of weight members, all of said weight members having the same dimensions which enable a plurality of said weight members to be fitted into said chambers, the weight members of each set being of a different density material, one end of each of said chambers being permanently closed, and removable cap means for removably capping the other ends of said chambers to retain the weights therein, said weight members being selectively installable in said chambers to variably shift the location to the center of gravity for said club head, both vertically and horizontally, said weight members being removable for replacement by means of said removable cap means.