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
1992-02-24
1993-01-19
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member or portion thereof located between substructure and...
411326, F16B 3932
Patent
active
051802651
ABSTRACT:
A lock nut to be threaded onto a threaded shank which has a keyway. The lock nut has a base, a key on the base to fit in the keyway, a peripheral wall with axial angularity spaced apart recesses, and a wave spring. The wave spring has ridges and radial tabs to fit in the recesses. An internally threaded nut has radially-extending grooves complementary to the ridges to hold the nut against rotation relative to the wave spring when the ridges fit in the grooves. The tabs can be contacted by a drive member to compress the wave spring and remove the ridges from the grooves to enable the nut to turn during installation and removal.
REFERENCES:
patent: 292513 (1884-01-01), Shailer
patent: 572489 (1896-12-01), Lehmann
patent: 779632 (1905-01-01), Wolf
patent: 1394740 (1921-10-01), Klocke
patent: 1646805 (1927-10-01), Bell
patent: 3581609 (1971-06-01), Greenwood
patent: 3851690 (1974-12-01), Wing et al.
patent: 3942570 (1976-03-01), Bochman, Jr. et al.
patent: 4971501 (1990-11-01), Chavez
Hi-Shear Corporation
Lindsey Rodney M.
Mon Donald D.
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