Method of making self-locking nut

Details Method of making self-locking nut Method of making self-locking nut

1981-04-24

1982-11-09

Rosenbaum, Mark

Plastic and nonmetallic article shaping or treating: processes

Outside of mold sintering or vitrifying of shaped inorganic...

Including plural heating steps

264267, B21D 5324

Patent

active

043577261

ABSTRACT:
Disclosed herein are prevailing torque type self-locking nut comprising a one-piece nuts each body having an internal screw thread surmounted by a well portion having an internal surface spaced from the thread axis a distance greater than one-half the major thread diameter, and a thin-walled self-locking element of thread impressionable thermoplastic material at least partly in the well portion and having an external surface secured by adhesion to the internal surface of the well portion and an internal surface spaced from the thread axis a distance less than one-half the major thread diameter. Also disclosed herein are a method of making such nuts, the method involving melting powder of the thermoplastic material in situ in the nut body, a pin useful in carrying out the method and nut body components of the self-locking nuts.

REFERENCES:
patent: 3830902 (1974-08-01), Barnes
patent: 4070724 (1978-01-01), Newnom

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