Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Nut – and means to engage substructure on its opposite faces...
Patent
1988-06-16
1990-03-06
Gall, Lloyd A.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Nut, and means to engage substructure on its opposite faces...
174138D, 411349, 411508, 411913, F16B 3704
Patent
active
049061526
ABSTRACT:
A screw retainer comprises a head portion, and a leg portion depending therefrom and provided with locking means, a screw retainer bore being formed so as to extend from the top of the head portion through the head and leg portions. An engagement portion projects from the upper surface of the head portion such that the screw retainer bore is open at the top of the engagement portion. The top of the engagement portion is provided with temporary engagment pawls for engaging an upper surface of a panel to be secured to a base panel within which the screw retainer is disposed by means of its dependent leg portion.
REFERENCES:
patent: 3220078 (1965-11-01), Preziosi
patent: 3588968 (1971-06-01), Heilman
patent: 4077300 (1978-03-01), Yoda
patent: 4285103 (1981-08-01), Inamoto
patent: 4422222 (1983-12-01), Notoya
patent: 4668145 (1987-05-01), Hirohata
patent: 4704059 (1987-11-01), Nakama et al.
patent: 4726722 (1988-02-01), Wollar
patent: 4743152 (1988-05-01), Nakayama et al.
Gall Lloyd A.
Nifco Inc.
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