Barrel nut with retainer spring

Claim 1

IN A BARREL NUT ASSEMBLY FOR INSTALLATION IN A BODY HAVING A MOUNTING BORE AND A BOLT HOLE INTERSECTING SAID BORE AT RIGHT ANGLES, IN COMBINATION: A RETAINER CRADLE INCLUDING A BRIDGE HAVING A SEGMENTAL-CYLINDRICAL BEARING WALL FOR MATING ENGAGEMENT WITH THE WALL OF SAID BORE, A CHORDAL NUT SEAT, AND A PAIR OF LIPS PROJECTING RADIALLY FROM THE ENDS THEREOF, SAID LIPS HAVING IN THEIER DIAGONALLY OPPOSITE EXTREMITIES, RESPECTIVE RETAINING BORE EXTENDING PARALLEL TO THE SIDES OF SAID BRIDGE; A NUT INCLUDING A NON-CIRCULAR BASE SUPPORTED ON SAID SEAT AND ENGAGED BETWEEN SAID LIPS SO AS TO BE HELD AGAINST ROTATION, AND A NUT BODY PROJECTING FROM SAID BASE RADIALLY WITH REFERENCE TO SAID BEARING WALL, SAID NUT BODY HAVING AN INTERNAL BOLT THREAD; AND A RETAINER OF SPRING WIRE INCLUDING A CENTRAL COIL ADAPTED TO YIELDABLY BEAR AGAINST SAID BODY IN AN AREA CONCENTRIC WITH SAID BOLT HOLE AND DIAMETRICALLY OPPOSITE SAID CRADLE, A PAIR OF ARMS EXTENDING FROM SAID COIL LONGITUDINALLY OF SAID CRADLE TO DIAGONALLY OPPOSITE CORNERS THEREOF, A PAIR OF RETURN BENDS AT THE OUTER ENDS OF SAID ARMS, AND A PAIR OF RETAINER TIPS CONSTITUTING COMTINUATIONS OF SAID RETURN BENDS, EXTENDING INWARDLY FROM THE REMOTE END FACES OF SAID CRADLE THROUGH SAID BORES AND THEREBY ATTACHING SAID SPRING TO SAID CRADLE, AND TERMINATING IN RETAINER PORTIONS PROJECTING INWARDLY ABOVE THE RESPECTIVE CORNERS OF SAID NUT FACE; THE SHORTEST DISTANCE FROM THE ENDS OF SAID RETAINER TIPS TO THE OPPOSITE LIPS BEING LESS THAN THE SHORTEST DISTANCE FROM THE RESPECTIVE PORTIONS OF THE NUT BODY ADJACENT THE RESPECTIVE RETAINER TIPS TO SAID OPPOSITE LIPS.