Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Member or portion thereof located between substructure and...
Patent
1995-07-17
1997-05-13
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Member or portion thereof located between substructure and...
411156, 411544, 411957, F16B 3924, F16B 4302
Patent
active
056285990
ABSTRACT:
In a first embodiment of this invention, a fastener having a flat thin body with sharp profusions thereon is anchored in a workpiece so that relative rotation is prevented between the anchored fastener and the workpiece. The sharp protrusions form anchoring legs which cut into the softer material of the work piece. These legs may be spike or tack shaped, and may be forced into the workpiece by pressing or hammering in a direction orthogonal to the surface of the workpiece. For sandwich applications between pairs of workpieces, the anchoring legs may be disposed on both sides of the body. In addition, individual anchoring legs may include a sharp edge which will cut into the work piece in the rotational direction. In a second embodiment, the thin surfaces of the body may be curved so that the body of the anchoring legs is deformed by the compression of a nut being tightened on a bolt. This elastic deformation provides an axial retention force in a manner similar to a lock washer. The surface curverture is generally that of a segment of a sphere, however multiple curvertures or corrugations can be used.
REFERENCES:
patent: 843720 (1907-02-01), Waddell et al.
patent: 2675844 (1954-04-01), Knohl
patent: 2735470 (1956-02-01), Poupitch
patent: 3032089 (1962-05-01), Gutshall
patent: 3194292 (1965-07-01), Borowsky
patent: 3332464 (1967-07-01), Castel
patent: 3480061 (1969-11-01), Leistner
patent: 4377275 (1983-03-01), Fager et al.
patent: 4543763 (1985-10-01), Ernst et al.
patent: 5188441 (1993-02-01), Rugel
patent: 5348432 (1994-09-01), Nagayama
Carroll Leo R.
Wilson Neill R.
LandOfFree
Anchored fastener does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anchored fastener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anchored fastener will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1380622