Self-locking nut and tightening tool

Details Self-locking nut and tightening tool Self-locking nut and tightening tool

1986-12-18

1988-07-26

Gall, Lloyd A.

Tools

Wrench, screwdriver, or driver therefor

Stud-removal and implacement

411 3, 411 5, 411277, 411281, 411427, 411937, 72 75, 29517, 29437, 81128, B25B 1350

Patent

active

047592370

ABSTRACT:
A self-locking nut is provided having, at its periphery, a number of longitudinal channels (3) with semi-circular section intended to cooperate with drive balls carried by an appropriate tightening tool, said balls causing, at the end of tightening, the formation of a circular groove (10) by forcing back the metal situated between the channels (3), which results in radial deformation of the inner threads of the nut (1) at the level of said groove (10).

REFERENCES:
patent: 2125276 (1938-08-01), Green
patent: 2743639 (1956-05-01), Lynch
patent: 3311147 (1967-03-01), Walker
patent: 4408936 (1983-10-01), Williamson
patent: 4513643 (1985-04-01), McKean
patent: 4539872 (1985-09-01), Bochman, Jr.
patent: 4544312 (1985-10-01), Stencel
patent: 4682520 (1987-07-01), Gray

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