Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Lap bolt or fastener
Patent
1996-07-19
1998-04-21
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Lap bolt or fastener
411324, 411510, 411913, F16B 1900, F16B 2100
Patent
active
057411026
ABSTRACT:
The new fastener has a shank which is resiliently compressible along an axis perpendicular to the shank push-in axis and has teeth protruding from the shank along the axis of resilient compressibility. The teeth are inclined in the push-in direction and in the pull-out direction. When the shank is pushed into an existing screw hole, then inclines of teeth just past the far side of the screw hole are increased to resist motion in the pull-out direction so that the shank is secured in the screw hole and so that the fastener can be pulled-out without damage. The shank can be integrally part of a first structure being fastened to a second structure.
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Everett Gerald W.
Trimnell Ralph R.
Everett Industries Inc.
Moyer Don
Wilson Neill R.
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