Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Patent
1997-01-16
1998-01-06
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Thread or shank structure
411414, 411426, F16B 3504
Patent
active
057047502
ABSTRACT:
A threaded screw has a first segment adjacent the screw head (10) with nontapered sides for engaging metal automotive fastener clip nuts (30) and a second segment with tapered sides for engaging plastic bosses (24). The second segment is adjacent the first segment but distant from the screw head (10). A single set of threads (36) is used for both the metal clip nut (30) and the plastic boss (24). The threads (36) have a helical pitch angle (P) of about nine degrees and form a flank angle (.beta.) of about thirty degrees relative to a horizontal axis (20) of the screw. The screw taper matches the taper of the boss opening (22) to promote even stress distribution.
REFERENCES:
patent: 1394608 (1921-10-01), Davern
patent: 1756186 (1930-04-01), Fenton
patent: 3030997 (1962-04-01), Collins
patent: 3083609 (1963-04-01), Lovisek
patent: 4472098 (1984-09-01), Kiefer
patent: 4595325 (1986-06-01), Moran et al.
patent: 4606688 (1986-08-01), Moran et al.
patent: 4750851 (1988-06-01), Thomey
patent: 4790702 (1988-12-01), Maganias
patent: 5098237 (1992-03-01), Harker
patent: 5131204 (1992-07-01), Hiendl
patent: 5141376 (1992-08-01), Williams
patent: 5252016 (1993-10-01), Schmid
Bartos Christopher James
Dapoz Albert James
Hughes Barry James
Rozmus Richard Joseph
Trapp Martin Arthur
Ford Global Technologies Inc.
Kelley David B.
May Roger L.
Saether Flemming
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