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
1993-06-08
1994-07-26
Lindsey, Rodney M.
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...
411435, 411437, 411508, F16B 3704
Patent
active
053323475
ABSTRACT:
A mat fastener comprises a cylindrical main body having a central insertion hole and engagement claws projecting from the inner surface of the insertion hole, a retainer provided around the lower periphery of the cylindrical body defining the main body and consisting of a pair of vertically spaced upper and lower retaining members, and an operating member provided on the upper periphery of the main body or the upper retaining member.
REFERENCES:
patent: 3309955 (1967-03-01), Turnbull et al.
patent: 4393551 (1983-07-01), Wollar et al.
patent: 4781504 (1988-11-01), Yuta
patent: 4810147 (1989-03-01), Hirohata
patent: 4828444 (1989-05-01), Oshida
patent: 4850773 (1989-07-01), Asami
Lindsey Rodney M.
Nifco Inc.
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