Patent ID: 7704160

Claim:
A device for selectively weighting the handle end of a hand-held implement with a hollow shaft, comprising: an upper cylindrical member sized to fit within said shaft, comprising a first axial bore extending through said upper member; a lower cylindrical member sized to fit within said shaft, and comprising a first post, coaxial with said member and extending downward therefrom, and a second axial bore, extending through said lower member including through said first post; a hollow rod, coaxial with said first and second bores, with an upper end and a lower end, the upper end coupled to said upper cylindrical member and said lower end coupled to said lower cylindrical member; a screw comprising an elongate barrel, at least part of which is threaded and sized to fit through said bores, and a cap larger in diameter than said barrel; a nut, sized to fit within said shaft and comprising a second post extending upward from said nut and a third axial bore extending through said second post and sized and threaded to receive the barrel of said screw; and a deformable expansion ring located between said lower cylindrical member and said nut, said ring sized to fit within said hollow shaft when in an non-deformed state and sized to fit snugly onto said posts; wherein the barrel of said screw extends through said second bore and said ring and is threaded into said third axial bore, with the cap of said screw bearing against the lower member, such that when said device is inserted into said hollow shaft and said screw is tightened, said lower member and nut axially compress said ring and cause it to expand radially against the inner wall of said hollow shaft.