Seal construction for rotary mechanisms

Claim 1

A ROTOR AND SHAFT STRUCTURE FOR USE IN A ROTARY MECHANISM HAVING A CAVITY WITH SPACED END WALLS AND WITHIN WHICH SAID ROTOR IS RECEIVED; SAID SHAFT BEING SUPPORTED BY SAID END WALLS AND HAVING AN ECCENTRIC PORTION ON WHICH SAID ROTOR IS JOURNALED; SAID ROTOR HAVING A PAIR OF END FACES IN SEALING COOPERATION WITH SAID END WALLS; SAID ROTOR HAVING AN ANNULAR GROOVE DISPOSED ON ONE OF SAID END FACES WITH SAID GROOVE HAVING A CONICAL SIDEWALL ON ITS RADIALLY INNER SIDE WHICH IS CO-AXIAL WITH THE ROTOR; AND AN OIL SEAL RING RECEIVED IN SAID GROOVE, COMPOSED OF RUBBERLIKE ELASTIC MATERIAL AND BEING ELASTICALLY STRETCHED TO FIT OVER SAID CONICAL WALL SO THAT SAID OIL SEAL RING SEALINGLY BEARS RADIALLY INWARDLY AGAINST SAID CONICAL GROOVE SIDEWALL AND SAID CONICAL WALL BEING ORIENTED SO THAT RADIAL PRESSURE OF SAID RING THEREAGAINST IS EFFECTIVE TO URGE THE RING AXIALLY OUTWARDLY OF THE GROOVE; SAID OIL SEAL RING HAVING A CONICAL FACE ON ITS AXIALLY OUTER SIDE WITH A TAPERED SEAL EDGE DIRECTED RADIALLY INWARDLY AND AXIALLY OUTWARDLY.