Self-locking nut having secured locking ring

Claim 1

A SELF-LOCKING NUT COMPRISING A BODY AND AN INTEGRAL EXTENSION, SAID BODY HAVING A THREADED BORE, SAID EXTENSION HAVING AN ENLARGED COUNTERBORE COAXIAL WITH SAID THREADED BORE AND DEFINING AN ANNULAR SEAT ADJACENT THERETO, SAID EXTENSION INCLUDING A GENERALLY AXIALLY EXTENDING FLANGE HAVING AN INNER WALL WHICH IS NON-CIRCULAR WHEN VIEWED IN A PLANE TRANSVERSE TO THE LENGTH OF THE NUT, AND A RESILIENT LOCKING RING HOUSED ENTIRELY WITHIN SAID EXTENSION AND BEING POSITIONED ON SAID SEAT, SAID RING HAVING AN OUTER NON-CIRCULAR SURFACE MATING WITH SAID FLANGE INNER WALL, SAID FLANGE INNER WALL COMPRISING AN ANNULAR ARRAY OF SUBSTANTIALLY FLAT SURFACES AND OUTWARDLY RECESSED SECTIONS INTERMEDIATE THE END PORTIONS OF SAID FLAT SURFACES, SAID RECESSED SECTIONS RECEIVING, IN KEYING RELATIONSHIP THEREWITH, RADIALLY OUTER PORTIONS OF SAID RING, SAID RECESSED SECTIONS BEING UNDERCUT WHEREBY THE DEPTH OF SAID SECTIONS IS GREATER AT THE END THEREOF CLOSER TO SAID BODY THAN AT THE END REMOTE FROM SAID BODY, SAID RING HAVING A HOLE DEFINED BY AN INNER SURFACE LOCKINGLY ENGAGEABLE BY A SCREW THREADABLE THROUGH SAID BODY, THE DIAMETER OF SAID HOLE BEING LESS THAN THE ROOT DIAMETER OF THE THREAD IN SAID BORE, WHEREBY SAID RING IS RESTRAINED AGAINST ROTATION AND AGAINST AXIAL MOVEMENT WHEN SAID SCREW IS THREADED INTO SAID RING, THE END OF SAID FLANGE OPPOSITE TO SAID BODY BEING BENT IN TOWARD SAID BODY TO COMPRESS SAID RING AGAINST SAID SEAT AND THEREBY RETAIN SAID RING AGAINST AXIAL MOVEMENT.