Variable electrical impedance device

Claim 1

A VARIABLE ELECTRICAL IMPEDANCE DEVICE WHICH COMPRISES A BASE MEANS, A FIRST ELEMENT AND A SECOND ELEMENT, BOTH SUPPORTED BY SAID BASE MEANS AND DISPOSED FOR ROTATION RELATIVE THERETO AND FOR COOPERATION WITH EACH OTHER TO ESTABLISH AN ELECTRICAL IMPENDANCE THE MAGNITUDE OF WHICH IS A FUNCTION OF THEIR RELATIVE ANGULAR POSITION, AND DIFFERETIAL ROTARY GEAR DRIVE MEANS ININCLUDING A PAIR OF INTERNAL RING GEARS, ONE CONNECTED TO EACH OF SAID FIRST AND SECOND IMPEDANCE ESTABLISHING ELEMENTS, AND A PAIR OF PINION GEARS EACH DISPOSED FOR MESHING ENGAGEMENT WITH A CORRESPONDING RING GREAR AND MOUNTED ON A COMMOM DRIVE SHAFT FOR ROTATION THEREWITH TO ROTATE SAID RING GEARS AND THEIR RESPECTIVE IMPEDANCE ESTABLISHING ELEMENTS IN A COMMOM DIRECTION WITH RESPECT TO THE BASE MEANS AND THROUGH RESPECTIVE ANGULAR DISPLACEMENTS DIFFERING FROM EACH OTHER BY AN AMOUNT CORRESPONDING TO THE MAGNITUDE OF THE DRIVE SHAFT ROTATION TO SELECTIVELY VARY THE RELATIVE ANGULAR POSITIONS OF SAID ELEMENTS, AND HENCE THE MAGNITUDE OF THE ELECTRICAL IMPEDANCE ESTABLISH THEREBY.