Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Member or portion thereof located between substructure and...
Patent
1998-04-21
1999-07-06
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member or portion thereof located between substructure and...
411238, 411354, 411433, F16B 3912, F16B 3924
Patent
active
059190183
ABSTRACT:
A locking fastener (14) includes a threaded bolt (16) and a nut assembly (26) comprising a torque nut (28) and a lock nut (30). The lock nut (30) is threadably received on the bolt (16) and is shiftable to a locked condition in which the lock nut thread axis (76) is misaligned relative to the bolt thread axis (24) so as to restrict rotation of the lock nut (30) relative to the bolt (16). Such misalignment is achieved by cam surfaces (48,72) defined on the torque nut (28) and the lock nut (30), wherein the cam surfaces (48,72) cooperatively shift the lock nut (30) to the locked condition when the nuts (28,30) are moved relative to one another.
REFERENCES:
patent: 1627745 (1927-05-01), Madden
patent: 2244400 (1941-06-01), Miller
patent: 2301634 (1942-11-01), Nicholay
patent: 4808050 (1989-02-01), Landt
patent: 5104141 (1992-04-01), Grove et al.
patent: 5474409 (1995-12-01), Terry
patent: 5533849 (1996-07-01), Burdick
patent: 5692863 (1997-12-01), Louw
patent: 5700121 (1997-12-01), Minola
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