Rotating contact assembly for electrical supply

Claim 1

An electrical contact assembly constituting means for transferring electrical current from a source to an electrical device through a rotating mechanical linkage, comprising: a hollow post; a mechanical linkage assembly structurally associated with such post, said linkage assembly having first and second elements capable of 360° rotation with respect to each other; an arm member mounted transversely to said post through said first and second elements; an insulating core mounted inside said post, said core housing a plurality of contact terminals in electrical isolation from each other; an insulating collar concentric to said insulating core mounted external said post; a plurality of conductive contact rings concentric to said post, each said contact ring being electrically and mechanically connected to said contact terminal through said collar; an electrical brush assembly carried by said arm; a plurality of conductive brush elements, extending from said brush assembly, each said brush element being in electrically conductive association with a said conductive ring through a biased friction surface contact; a plurality of first conductors extending from electrical connection to respective said plurality of contact terminals through said hollow post, said first conductors constituting means for carrying electrical current from or to a first remote location; and a plurality of second conductors extending from electrical connection to respective of said plurality of brush elements through said arm, said second conductors constituting means for carrying electrical current to or from a second remote location.