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
1980-09-19
1983-03-15
Britts, Ramon S.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member or portion thereof located between substructure and...
301 9AN, 403408, 411531, F16B 4300
Patent
active
043766064
ABSTRACT:
A specially designed washer for attaching a plastic member to a metal substrate. The washer has a generally polygonal configuration with a metal-substrate-engaging member which projects through the plastic from an off-center location. This member provides some dissipation of the clamp load through a metal-to-metal contact path through the plastic and also acts as a pivot point for the washer to transfer another component outwardly from the aperture in the plastic and distribute it over a wide surface area to reduce plastic creep and eliminate loosening of the joint. A crowning of the washer body dissipates additional clamp loading from the resulting spring forces.
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Britts Ramon S.
Buckman Thomas W.
Illinois Tool Works Inc.
Mondul Donald D.
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