Self-locking screw - nut assembly

Details Self-locking screw - nut assembly Self-locking screw - nut assembly

1986-12-29

1988-09-06

Gall, Lloyd A.

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

Having structure to restrict rotation of threaded, mating...

Comprising a thread lock

29517, 295251, 411361, F16B 3912

Patent

active

047689080

ABSTRACT:
A self-locking screw-nut assembly is provided characterized in that the screw (2) has one or more median threads (4) of reduced diameter, whereas the nut (1) is designed to be deformed locally by an external action at the level of these reduced diameter threads after tightening to the desired torque, so that the displaced metal fills the gap (7) left free between the inner thread of the nut (1) and said reduced diameter threads (4) of the screw (2).

REFERENCES:
patent: 225121 (1880-03-01), Hackman et al.
patent: 891990 (1908-06-01), Henry et al.
patent: 2355253 (1944-08-01), Whitfield
patent: 2653641 (1953-09-01), Wellman
patent: 3055100 (1962-09-01), Kimpel
patent: 3163872 (1965-01-01), Rosan et al.
patent: 3426820 (1969-02-01), Phipard
patent: 3560124 (1971-02-01), Bergere
patent: 3750732 (1973-08-01), Moebius
patent: 4260005 (1981-04-01), Stencel
patent: 4544312 (1985-10-01), Stencel
patent: 4601623 (1986-07-01), Wallace

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