Fluid coupling for an electric current

Abstract

A fluid coupling for transferring an electric current through a rotating joint includes a housing including an outer conductor and an outer insulator positioned between the housing and the outer conductor, a shaft including an inner conductor and inner insulator positioned between the shaft and the inner conductor, a first seal positioned between the housing and the shaft, a second seal positioned between the housing and the shaft, a first electrical wire connected to the outer conductor, a second electrical wire connected to the inner conductor, a third electrical wire connected to the housing, a chamber defined at least partially by the inner and outer conductors and the first and second seals, an electrically conductive fluid inside the chamber forming an electric connection between the inner and outer conductors.

Dependencies are inferred from the claim text.