Patent ID: 7261641

Claim:
A device for adding weight to a hollow shaft of a golf club, said device comprising: a screw comprising an elongate barrel, at least part of which is threaded, and a cap larger in diameter than said barrel; an upper wedge member substantially shaped as a cylinder with its lower face diagonal to its axis, and comprising a first axial bore larger than the barrel of said screw, and wherein the upper end of said first bore is enlarged to receive the cap of said screw and is threaded to facilitate removal of said device; a lower wedge member substantially shaped as a cylinder with its upper face diagonal to its axis, and comprising a second axial bore larger than the barrel of said screw and a cylindrically shaped cavity transverse to and intersecting said axial bore; and a receptacle within said cavity, sized and shaped to rotate therein, said receptacle having a bore threaded to receive said screw; wherein the diagonal faces of said wedge members are complementary to one another and abut one another, substantially forming a cylinder slightly less in diameter than the internal diameter of said shaft, with the barrel of said screw extending through said axial bores in said wedge members and threading into the bore of said receptacle, with its cap seated into the enlarged portion of said first axial bore.