Electric heating – Metal heating – By arc
Reexamination Certificate
2005-01-25
2005-01-25
Shaw, Clifford C. (Department: 1725)
Electric heating
Metal heating
By arc
C219S137420
Reexamination Certificate
active
06847009
ABSTRACT:
A welding contact tip and diffuser assembly for use in a welding apparatus. The assembly includes an electrically conductive contact tip having a tapered exterior surface, a diffuser having a cavity with a tapered interior surface, and a releasable connection for holding the contact tip in the diffuser. The connection includes at least one detent element in either the diffuser or the contact tip, at least one recess forming a ramp in the other of the diffuser or contact tip, and at least one spring. The spring biases the detent element into the recess and against the ramp to generate an axial force against the ramp. The axial force tends to urge the tapered surfaces of the contact tip and diffuser into contact with one another.
REFERENCES:
patent: 1119276 (1914-12-01), Griffith et al.
patent: 1324654 (1919-12-01), Ferguson
patent: 2279146 (1942-04-01), Schneller
patent: 2297548 (1942-09-01), Fox et al.
patent: 2761049 (1956-08-01), McElrath et al.
patent: 3007033 (1961-10-01), Newman et al.
patent: 3178984 (1965-04-01), Barothy
patent: 3514570 (1970-05-01), Bernard et al.
patent: 3576423 (1971-04-01), Bernard et al.
patent: 3596049 (1971-07-01), Ogden
patent: 4017198 (1977-04-01), Mason
patent: 4049943 (1977-09-01), Pratt
patent: 4147920 (1979-04-01), Merrick et al.
patent: 4282419 (1981-08-01), Auer
patent: 4645901 (1987-02-01), Scholz et al.
patent: 4914271 (1990-04-01), Delzenne et al.
patent: 4945208 (1990-07-01), Lian
patent: 5018900 (1991-05-01), Darrin
patent: 5338917 (1994-08-01), Stuart et al.
patent: 5440100 (1995-08-01), Stuart et al.
patent: 5585013 (1996-12-01), Truty
patent: 5664312 (1997-09-01), Sasaki et al.
patent: 5726420 (1998-03-01), Lajoie
patent: 5760373 (1998-06-01), Colling
patent: 5911894 (1999-06-01), Colling
patent: 6075227 (2000-06-01), Lajoie
patent: 6163008 (2000-12-01), Roberts et al.
patent: 6307179 (2001-10-01), Walters, III
patent: 6657162 (2003-12-01), Jung et al.
patent: 20020113046 (2002-08-01), Altekruse et al.
patent: 20020113047 (2002-08-01), Doherty
patent: 20020113048 (2002-08-01), Altekruse
patent: 0 896 850 (1999-02-01), None
International Search Report, PCT/US03/14498, from the European Patent Office dated Aug. 25, 2003.
Longhofer Rondell L.
Stuart Kyle
Harness & Dickey & Pierce P.L.C.
Shaw Clifford C.
Tweco Products, Inc.
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