Reinforced seal for rotatable members

Claim 1

IN COMBINATION WITH A PAIR OF RELATIVELY ROTATABLE MEMBERS HAVING AN ANNULAR LUBRICANT CHAMBER THEREBETWEEN, AN ANNULAR CLOSURE EXTENDING ACROSS THE LUBRICANT CHAMBER, ONE OF SAID MEMBERS HAVING AN ANNULAR GROOVE RADIALLY OPENING TOWARDS SAID OTHER MEMBER, DIVERGENT SIDE WALLS IN SAID GROOVE, THE CLOSURE COMPRISING A MOLDED RUBBER SEALING WASHER HAVING A COMPRESSIBLY RESILIENT PERIPHERAL BEAD DEFORMABLY AND SEALINGLY SEATED AGAINST THE SIDE WALLS OF THE GROOVE, SAID BEAD BEING IN RADIALLY SPACED RELATION TO THE BOTTOM OF THE GROOVE, A REINFORCING DISC EMBEDDED IN AND BONDED TO SAID WASHER, A PLURALITY OF CIRCUMFERENTIALLY SPACED TEETH ON THE DISC AND EMBEDDED IN THE BEAD, AND EACH TOOTH BEING LATERALLY BENT AXIALLY AWAY FROM THE BODY OF THE DISC TO A SIDE WALL OF THE BEAD AND THEN EXTENDING ANGULARLY THROUGH THE BEAD IN AN OPPOSITE DIRECTION TO THE OPPOSITE SIDE WALL OF THE BEAD, SAID TEETH BEING RESILIENT TO FACILITATE DEFORMABLY SNAPPING THE BEAD INTO MOUNTED POSITION IN THE GROOVE WITH THE ENDS OF SAID TEETH TIGHTLY WEDGED AGAINST THE OPPOSITE WALLS OF SAID GROOVE.