Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Threaded fastener locked to a discreet structure – Design of fastener or substructure restricts rotation
Patent
1981-05-06
1984-08-28
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Threaded fastener locked to a discreet structure
Design of fastener or substructure restricts rotation
411181, 29509, 228 31, 228116, F16B 3706, B23K 2002
Patent
active
044681615
ABSTRACT:
In a preferred embodiment, a metal nut compacted and welded within the thickness of a metal sheet, within a sheet-aperture of lesser diameter than a top of the nut, spaced-apart compacted edge portions of the nut's top having a larger diameter than the nut's top at other edge locations in the compacted state, and the sheet's malleable metal of bottom portions thereof adjacent the aperture being compacted against and welded to malleable metal of a circumscribing side wall of the nut.
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patent: 2707821 (1955-05-01), Sowter
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patent: 3234987 (1966-02-01), Hentzi
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patent: 3883915 (1975-05-01), Steward
patent: 3909913 (1975-10-01), Tildesley
patent: 3948142 (1976-04-01), McKay et al.
patent: 4095327 (1978-06-01), Hartmann
Holko Thomas J.
Hough William T.
Wilson Neill
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