Lapping tool
OwnerHing Yiuinventor
Life of this patent
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Abstract
A lapping tool has an elongate shank mechanically coupled to a platform, having a generally planar working surface, by a universal joint comprising a ball and socket. A cavity is provided for entrapping grinding paste. Normally, the parts are made of electrically conductive materials so that current can be passed from the shank via the working surface to surface of a workpiece that is to be polished.
Claims11
A lapping tool for treating a workpiece surface, the tool having an elongate shank and a platform with a generally planar lower operative surface, in which the platform and an end of the shank are connected together by a pivotable joint, and including an electrical conductor extending from the shank to the lower operative surface to enable an electrical discharge to be applied to the workpiece surface.
Dependencies are inferred from the claim text.