Washer with integral flap and fastening assembly combining faste

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed bolt or screw with threads and complementary nut

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Details

411480, 411531, 411533, 411908, 52410, 52512, F16B 3900, F16B 4300

Patent

active

051182351

ABSTRACT:
A washer molded from a polymeric material and useful with a fastener having a head and a shank, such as, for example, a screw or a drive pin, and a fastening assembly comprised of the washer and such a fastener, is disclosed. The fastener head is contained within a washer socket with the fastener shank extending through a washer aperture. An integral flap hinged from a lateral wall portion of the washer socket is used to substantially cover the fastener head. The flap has a curved end, which is adapted to be snap-fitted under a locking formation, comprising a curved lip, formed upon a lateral wall portion of the socket which is disposed opposite the lateral wall portion upon which the flap is hinged.

REFERENCES:
patent: 4214505 (1980-07-01), Aimar
patent: 4380413 (1983-04-01), Dewey
patent: 4686808 (1987-08-01), Triplett
patent: 4884932 (1989-12-01), Meyer
patent: 4900206 (1990-02-01), Kazino et al.

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