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
1993-07-13
1995-12-12
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...
411149, 411231, 411536, 4119351, F16B 3900
Patent
active
054744091
ABSTRACT:
A locking fastener in which coacting ramp surfaces are provided on a nut and washer assembly to generate wedging forces in response to backing off movement of the nut which urge the nut into tighter engagement with the associated bolt and the workpiece and in which a spring member disposed radially from the ramp surfaces is biased by the final relative tightening movement of the nut and washer so as to bias the ramp surfaces for movement in the direction to augment the locking action of the fastener. A torque control fastener is disclosed in which the gap between the adjacent ramp shoulders on the nut and washer is indicative of the torque and the damping force exerted by the fastener.
REFERENCES:
patent: Re33827 (1992-02-01), Terry
patent: 1303715 (1919-05-01), Outlaw
patent: 3030996 (1962-04-01), Doerr
patent: 4708555 (1987-11-01), Terry
patent: 5180268 (1993-01-01), Richardson
patent: 5190423 (1993-03-01), Ewing
patent: 5203656 (1993-04-01), McKinlay
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