Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1996-04-08
1997-09-02
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411280, 4119371, F16B 3928
Patent
active
056624433
ABSTRACT:
An article engagable and retainable about a threaded shaft, which in one embodiment is a self locking nut a first end, an opposing second end, and a threaded bore with an axial dimension for receiving the threaded shaft. A plurality of resilient posts extend along the body member and are inclined inwardly toward the bore axis to provide a prevailing torque on a threaded shaft disposed in the threaded bore. A pair of resilient arms with end portions extend from each resilient post. Each resilient arms is inclined toward the second end of the body member to provide a prevailing torque on the threaded shaft disposed in the threaded bore. The resilient posts and resilient arms contribute to retaining the body member about the threaded shaft. The lock nut has a relatively low first installation torque and a relatively consistent torque performance with reduced statistical spread over several nut installation and removal cycles, which meet an established torque specification.
REFERENCES:
patent: 815541 (1906-03-01), Leatherman
patent: 961063 (1910-06-01), Austin
patent: 2142820 (1939-01-01), Olson
patent: 2213353 (1940-09-01), Whitcombe
patent: 2221961 (1940-11-01), Allen et al.
patent: 2487219 (1949-11-01), Butler
patent: 3702628 (1972-11-01), Cosenza
patent: 5499893 (1996-03-01), Thurston et al.
Buckman Thomas W.
Illinois Tool Works Inc.
Saether Flemming
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