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
1988-09-13
1990-04-10
Smith, Gary L.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member preassembled with substructure at through-passage or...
411353, 411 82, 411258, 292251, F16B 3900
Patent
active
049155571
ABSTRACT:
A captive screw assembly for impeding the removal of a screw from a housing or other part. The assembly includes a housing having a hole and an annular flange projecting inwardly in the hole at a location spaced from the hole's two ends. A screw encircled by a coil spring extends through the housing hole with the spring being retained between the screw head and the inwardly-projecting flange. A stopnut, which is sized to be freely received in the housing hole, is threaded to a selected location on the screw. The screw is urged longitudinally upwardly from the housing by the coil spring, to a point where the stopnut abuts against the inwardly-projecting flange. A full removal of the screw from the housing is thereby impeded.
REFERENCES:
patent: 748078 (1903-12-01), Kaisling
patent: 1609772 (1926-12-01), Rank
patent: 1970078 (1934-08-01), Dillon
patent: 2460613 (1949-02-01), Whelan et al.
patent: 2640245 (1953-06-01), Becker
patent: 3018127 (1962-01-01), Dobrosielski
patent: 3343581 (1967-09-01), Martin
patent: 3368602 (1968-02-01), Boyd
patent: 3871429 (1975-03-01), Bosse
patent: 3893496 (1975-07-01), Wallace
patent: 4387497 (1983-06-01), Gulistan
patent: 4408940 (1983-10-01), Fischer
"Captive Screws", Tridair Fasteners, Catalog No. 900 C, 1986.
Rexnord Holdings Inc.
Saether F.
Smith Gary L.
LandOfFree
Captive screw assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Captive screw assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Captive screw assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2296233