Nut threaded fastener for applying a predetermined preload

Details Nut threaded fastener for applying a predetermined preload Nut threaded fastener for applying a predetermined preload

1992-01-21

1993-10-26

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Torque responsive nut or bolt driving connection

411360, 411427, 4119372, 295251, F16B 3100, F16B 1900

Patent

active

052560147

ABSTRACT:
Six lobes of a nut have axial surfaces falling on six tangent cylinders of equal radius and having axes lying on a right cylinder concentric with the axis of the nut. The surface of a second concentric right cylinder having a radius greater than the first defines furrows between the lobes. Successive lobes are tangent to an imaginary flat surface and the furrows are spaced away from the surface inside it.

REFERENCES:
patent: 2824481 (1958-02-01), Johnson
patent: 2940495 (1960-06-01), Wing
patent: 3741266 (1973-06-01), Frailly
patent: 3763725 (1973-10-01), Reiland
patent: 3842878 (1974-10-01), Duer
patent: 3854372 (1974-12-01), Gutshall
patent: 3929054 (1975-12-01), Gutshall
patent: 4068555 (1978-01-01), Volkman
patent: 4260005 (1981-04-01), Stencel
patent: 4408936 (1983-10-01), Williamson
patent: 4544312 (1985-10-01), Stencel
patent: 4784549 (1988-11-01), Wing
patent: 4858299 (1989-08-01), Wing

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