Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Member preassembled with substructure at through-passage or...
Patent
1983-08-29
1986-10-14
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member preassembled with substructure at through-passage or...
411107, 411108, F16B 3900, F16B 4100
Patent
active
046169679
ABSTRACT:
This invention provides a captive fastener in which a nut is held to a workpiece by a retainer ring held in a two-piece grommet attached to the workpiece, the retainer ring being flat and split, with its grain perpendicular to a diameter bisecting the split, and its inner and outer edges having alternate elongated recesses to increase the effective ring width without increasing spring force. The stud assembly includes a cage secured to the other workpiece, with side flanges removably and floatingly retaining a housing in which is a stud and spring biased ratchet washer. The notched outer end of the housing is bent over the head of the stud to secure the stud. The ratchet washer has tabs fitting in the housing wall, and ratchet teeth to engage teeth on the end of the nut. A cover fits over the housing.
REFERENCES:
patent: 2742072 (1956-04-01), Murphy
patent: 3192980 (1965-07-01), Sauter
patent: 3289726 (1966-12-01), Sauter
patent: 3712355 (1973-01-01), Schenk
patent: 3730243 (1983-05-01), Smith
patent: 3765465 (1973-10-01), Gulistan
patent: 4285380 (1981-08-01), Goustan
patent: 4324517 (1982-04-01), Dey
Deutsch Fastener Corp.
Holko Thomas J.
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