Electric arc welder system with waveform profile control

Details Electric arc welder system with waveform profile control Electric arc welder system with waveform profile control

2008-04-15

2008-04-15

Shaw, Clifford C. (Department: 1793)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

07358459

ABSTRACT:
An electric arc welder for creating a succession of AC waveforms between an electrode and workpiece by a power source comprising an high frequency switching device for creating individual waveforms in the succession of waveforms. Each of the individual waveforms has a profile determined by the magnitude of each of a large number of short current pulses generated at a frequency of at least 18 kHz by a pulse width modulator with the magnitude of the current pulses controlled by a wave shaper. The welder is provided with a profile control network for setting more than one profile parameter selected from the class consisting of frequency, duty cycle, up ramp rate and down ramp rate and a magnitude circuit for adjusting the waveform profile to set total current, voltage and/or power.

REFERENCES:
patent: 3424892 (1969-01-01), Wilcox
patent: 3539765 (1970-11-01), Duttera et al.
patent: 3560702 (1971-02-01), Arikawa et al.
patent: 3573426 (1971-04-01), Blake et al.
patent: 3778589 (1973-12-01), Smith et al.
patent: 3787658 (1974-01-01), Kammer et al.
patent: 4020320 (1977-04-01), Pijls et al.
patent: 4072845 (1978-02-01), Buckingham et al.
patent: 4186293 (1980-01-01), Gonzalez et al.
patent: 4246463 (1981-01-01), Shutt et al.
patent: 4319124 (1982-03-01), Johansson
patent: 4427874 (1984-01-01), Tabata et al.
patent: 4551610 (1985-11-01), Amata
patent: 4717536 (1988-01-01), Chai et al.
patent: 4717807 (1988-01-01), Parks et al.
patent: 4723061 (1988-02-01), Munz et al.
patent: 4794232 (1988-12-01), Kimbrough et al.
patent: 4833296 (1989-05-01), Crockett et al.
patent: 4866247 (1989-09-01), Parks et al.
patent: 4954691 (1990-09-01), Parks et al.
patent: 5003155 (1991-03-01), Chai et al.
patent: 5015823 (1991-05-01), Crockett et al.
patent: 5055655 (1991-10-01), Chai et al.
patent: 5091628 (1992-02-01), Chai et al.
patent: 5120931 (1992-06-01), Kotecki et al.
patent: 5132514 (1992-07-01), Chai et al.
patent: 5220151 (1993-06-01), Terayami et al.
patent: 5225660 (1993-07-01), Mita et al.
patent: 5225661 (1993-07-01), Chai et al.
patent: 5233160 (1993-08-01), Gordish et al.
patent: 5278390 (1994-01-01), Blankenship
patent: 5349159 (1994-09-01), Mita et al.
patent: 5365036 (1994-11-01), Crockett et al.
patent: 5369244 (1994-11-01), Kulikowski et al.
patent: 5676857 (1997-10-01), Parker
patent: 5742029 (1998-04-01), Stava et al.
patent: 5961863 (1999-10-01), Stava
patent: 5981906 (1999-11-01), Parker
patent: 5990445 (1999-11-01), Ogasawara et al.
patent: 6051810 (2000-04-01), Stava
patent: 6091048 (2000-07-01), Lanouette et al.
patent: 6093906 (2000-07-01), Nicholson et al.
patent: 6111216 (2000-08-01), Stava et al.
patent: 6160241 (2000-12-01), Stava et al.
patent: 6172333 (2001-01-01), Stava
patent: 6204478 (2001-03-01), Nicholson et al.
patent: 6207929 (2001-03-01), Stava
patent: 6215100 (2001-04-01), Stava
patent: 6291798 (2001-09-01), Stava
patent: 6472634 (2002-10-01), Houston
patent: 6501049 (2002-12-01), Stava
patent: 6515259 (2003-02-01), Hsu et al.
patent: 6617549 (2003-09-01), Ihde
patent: 6717107 (2004-04-01), Hsu
patent: 6723954 (2004-04-01), Nikodym et al.
patent: 6723957 (2004-04-01), Holverson et al.
patent: 6784401 (2004-08-01), North et al.
patent: 7053334 (2006-05-01), Stava
patent: 7145101 (2006-12-01), Tong
patent: 2002/0030043 (2002-03-01), Tong
patent: 2003/0116548 (2003-06-01), Blankenship
patent: 2004/0188407 (2004-09-01), Nikodym et al.
patent: 2005/0051524 (2005-03-01), Narayanan et al.
patent: 2005/0127054 (2005-06-01), Houston et al.
patent: 2005/0189334 (2005-09-01), Stava
patent: 2006/0226131 (2006-10-01), Stava et al.
patent: 1 036 637 (2000-09-01), None
patent: 1 595 634 (2005-11-01), None
patent: 53-67657 (1978-06-01), None
patent: 9-38772 (1997-02-01), None
European Search Report, App. No. EP 05 00 8352, The Hague, Sep. 1, 2005, D. Herbreteau.
Tom De Backer, European Search Report, EP 06 11 7981, Munich, Aug. 29, 2007.
Japanese Office Action in Japanese Application No. 2005-32411, Dec. 4, 2008.

Affiliated with

Also associated with

Rating

Electric arc welder system with waveform profile control does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric arc welder system with waveform profile control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric arc welder system with waveform profile control will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2771054