Variable radio frequency resonator without sliding contacts

Claim 1

IN A VARIABLE RESONATOR RF TUNING DEVICE, A CONDUCTIVE MATERIAL PRIMARY DISC; MEANS MOUNTING SAID PRIMARY DISC; A CONDUCTIVE MATERIAL TUNING CONTROL DISC; MEANS ROTATABLY MOUNTING SAID TUNING CONTROL DISC IN SPACED PARALLEL RELATION RELATIVE TO SAID PRIMARY DISC; A DIELECTRIC BETWEEN SAID DISCS; SAID DISCS BEING OF SUBSTANTIALLY THE SAME SHAPE AND SIZE WITH THE CONDUCTIVE MATERIAL OF EACH DISC DEFINING SUBSTANTIALLY A PLANAR AREA CONTAINED WITHIN AN OUTER CIRCUMFERENCE, AND BETWEEN THE OUTER CIRCUMFERENCE AND A PERIPHERAL EDGE DEFINING AN OPENING OF SUBSTANTIALLY SMALLER SIZE THAN THE AREA OF THE DISC, AND WITH THE OPENING ECCENTRICALLY LOCATED WITHIN THE AREA DEFINED BY THE CIRCUMFERENCE OF THE DISC; A SLOT IN EACH DISC DEFINED BY A GAP IN THE CONDUCTIVE MATERIAL OF THE RESPECTIVE DISC AND WITH THE SLOT EXTENDING FROM THE OPENING WITHIN THE DISC TO THE CIRCUMFERENCE OF THE DISC; AND WITH THE SLOT IN ONE DISC BEING PASSED THROUGH THE CONDUCTIVE MATERIAL AREA OF SUBSTANTIALLY MAXIMUM BREADTH, AND WITH THE SLOT IN THE OTHER DISC BEING PASSED THROUGH THE AREA OF SUBSTANTIALLY NARROWEST BREADTH BETWEEN THE OPENING AND THE CIRCUMFERENCE OF THE RESPECTIVE DISCS.