Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Cap over the head
Patent
1998-09-28
2000-01-11
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Cap over the head
411373, 411431, 411908, F16B 1900, F16B 3300, F16B 3714
Patent
active
060128895
ABSTRACT:
A unitary cover includes a base and a cap portion which are moveable relative to one another into a closed operative condition to conceal a fastener head or nut. The generally flat base has an aperture therethrough for extension of the fastener's shank while the portions about the aperture serve as a washer for the fastener head or nut. The cap portion has an oblong and dome-like shape and shares a thin edge with an edge of the base which forms a living hinge therebetween to allow the base and cap to pivot between opened and closed operative positions with respect to one another. Free edge portions of the base and of the cap engage when moved into a closed operative position. Specifically, an inwardly projecting catch formation on the cap edge encounters a beveled formation on the base edge to flex the cap edge outward an allow the catch formation to be trapped by the bevel formation thereby securing the edges together. Release of the catch formation from the bevel formation is accomplished by squeezing the opposed ends of the cap portion which flexes the catch formation outward from the bevel.
REFERENCES:
patent: 4753405 (1988-06-01), Camilleri
patent: 5653564 (1997-08-01), Nakamura
Caplugs.RTM. "Finishing Parts", Catalog 595, Copyrighted 1995 by Protective Closure, Inc., p. 52.
Lucas Donald W.
Robbins Norman B.
Young Thomas R.
Chrysler Corporation
MacLean Kenneth H.
Wilson Neill
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