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
1985-12-19
1987-11-24
Ridgill, Jr., James L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member or portion thereof located between substructure and...
F16B 3924
Patent
active
047085550
ABSTRACT:
A locking fastener in which coacting ramp surfaces are employed to generate wedging forces in response to backing-off movement of the associated nut which urges the nut into tighter engagement with the associated bolt and workpiece and in which spring means are provided which are compressed during the tightening operation and which bias the ramp surfaces for movement in a direction to augment the locking action of the fastener.
REFERENCES:
patent: 423738 (1890-03-01), Collins
patent: 524895 (1894-08-01), Fulton
patent: 910712 (1909-01-01), McCoy
patent: 1066761 (1913-07-01), Semon et al.
patent: 1894631 (1933-01-01), Owen
patent: 2016000 (1935-10-01), Freeland
patent: 2262439 (1941-11-01), Simpson
patent: 2665729 (1954-01-01), Terry
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