Rotary electric coupling

Claim 1

ROTARY ELECTRICAL CONNECTOR APPARATUS COMPRISING: A PAIR OF CONCENTRICALLY MOUNTED RELATIVELY ROTATABLE CYLINDERS COMPRISED OF STACKED MODULES OF INSULATING MATERIAL, EACH MODULE COMPRISING: A HOLLOW INNER MODULE UNIT HAVING A LARGE HOLLOW CYLINDRICAL HUB SERVING AS AND INNER HOLLOW RING OF SUBSTANTIAL WIDTH WITH A LARGE RIM AND A SMALL RIM AND HAVING AN ANNULAR FLANGE BETWEEN THE RIMS SERVING AS AND INNER WALL SECTION, AN INNER CIRCULAR CONDUCTING SURFACE SUPPORTED ON SAID INNER RING, AND OUTER CYLINDRICAL MODULE UNIT COMPRISED OF A HOLLOW OUTER MODULE CASE SECTIN AND AND OUTER CYLINDRICAL HOLLOW RING OF SUBSTANTIAL WIDTH OF LESSER DIAMETER AND HAVING AN ANNULAR OUTER WALL SECTION LOCATED CENTRALLY THEREOF, AN OUTER CIRCULAR CONDUCTING SURFACE SUPPORTED ON SAID OUTER CYLINDRICAL RING; SAID INNER MODULE UNIT BEING NESTED IN SAID OUTER MODULE UNIT WITH SAID WALL SECTIONS IN ALIGNMENT TO FORM ONE WALL OF SAID MODULE, AND A SLIDABLE ELECTRICAL CONNECTOR DISPOSED BETWEEN SAID CONDUCTING SURFACES COMPRISING A SINGLE LOOPED MEMBER ENCOMPASSING THE INNER CONDUCTING SURFACE BEYOND 180* AND CONTACTING BOTH INNER AND OUTER CIRCULAR CONDUCTING SURFACES IN AT LEAST TWO PLACES; SAID ASSEMBLY OF INNER AND OUTER MODULE UNITS ADATED TO NEST WITH AN ADJACENT IDENTICAL ASSEMBLY WITH THE SMALL RIM OUTER MODULE CASE SECTION OF THE ADJACENT ASSEMBLY NESTING IN SAID LARGE RIM AND OVER SAID OUTER RING, RESPECTIVELY, TO FORM A MODULE COMPARTMENT BOUNDED BY THE TWO RINGS AND TWO WALLS WHEREBY INNER AND OUTER RELATIVELY ROTATING COMPOSITE CYLINDERS ARE FORMED IN WHICH THE INNER CYLINDER IS COMPRISED OF ASSEMBLE INNER MODULE SECTIONS AND THE OUTER CYLINDER IS COMPRISED OF OUTER MODULE SECTIONS; AND AN ELECTRICAL CONDUCTOR FOR EACH OF SAID SURFACES ATTACHED TO THE FACE THEREOF.