Grease gun adapter

Claim 1

A grease gun adapter mateable, at its rearward end, with a conventional grease gun coupler and, at its forward end, frictionally engageable in the rearward end of an elongate needle having a passageway formed longitudinally therethrough, the forward end of the needle being adapted for insertion into sealed lubricating areas, the grease gun adapter comprising: a. a ball-shaped rearward portion mateable with the coupler; b. a flange tangentially disposed and rigidly affixed to said ball-shaped rearward portion, said flange having a diameter at least equal to the diameter of the forward end of the coupler in a plane normal of the longitudinal axis of the coupler, said flange being juxtaposable with the forward end of the coupler; c. an elongate tube having a rearward end and a forward end, said tube being affixed at said rearward end centrally and normally to said flange and on the side of said flange opposite said ball-shaped rearward portion, the outside surface of said tube being tapered inwardly from said rearward end to said forward end; d. an aperture formed along the longitudinal axis of said adapter through said tube, said flange and said rearward portion, said aperture having a diameter greater at said forward end of said tube than at the rearward end of said ballshaped rearward portion.