Rotatable coupling for fluid and electrical services

Claim 1

A multiple purpose coupling a unitary nature interconnecting moving and stationary electrical, water and waste conduit components to provide services to a rotatable building structure, said coupling comprising, axially aligned upper and lower waste conduits having interengaging end segments adapted for rotational movement relative to one another, said upper waste conduit being rotatable with said building structure about a common axis, A stationary housing radially spaced from and supported by said lower waste conduit, a drum concentrically disposed within said housing and depending from said upper waste conduit, electrical conductor means carried by said stationary housing and in circuit with an electrical source, cooperating conductor means carried by said drum and in continuous circuit with said housing conductor means and with electrical leads to the building structure, said housing also in communication with a water source, a water collector ring movably mounted within said housing and defining annular water charged chambers receiving a water supply from the water source, water conduit means in continuous upstream communication with the chambers in said collector ring, said conduit means routed upwardly through said drum along a course intermediate the lower waste conduit and the exterior of said drum, and said electrical leads and water conduit means exiting the upper end of said housing in proximity to the upper waste conduit for rotation therewith in a compact manner and with the building structure to communicate their respective services to said structure.