Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Impact driven fastener – e.g. – nail – spike – tack – etc.
Patent
1993-10-14
1995-12-19
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Impact driven fastener, e.g., nail, spike, tack, etc.
411453, 411481, 470 40, F16B 1502, F16B 1508
Patent
active
054763517
ABSTRACT:
A method and apparatus for forming a head, having a controlled predetermined shape, on an end of an elongate member, such as a wire, which is formed into a fastener, where an end portion of the wire is secured in a predetermined position and axially compressed so as to expand a predetermined amount of wire material radially outwardly and thereby form the head on the wire, and where material flow is directed during axial compression so as to provide the controlled predetermined shape of the head.
REFERENCES:
patent: 1619944 (1927-03-01), Leonard
patent: 1699421 (1929-01-01), Bean
patent: 1944150 (1934-01-01), Brugge
patent: 1955924 (1934-04-01), MacLean
patent: 1968516 (1934-07-01), Dieter
patent: 2049259 (1936-07-01), Greenwell
patent: 2718647 (1955-09-01), Raible
patent: 2982166 (1961-05-01), Hobbs
Binder John
Gabriel William L.
Schniedermeier Henry W.
Shelton Lawrence S.
Sygnator Henry A.
Illinois Tool Works Inc.
Wilson Neill R.
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