Electric heating – Metal heating – By arc
Patent
1994-04-05
1995-11-07
Paschall, Mark H.
Electric heating
Metal heating
By arc
2191304, 219137PS, 21912154, 21912157, B23K 1000
Patent
active
054649587
ABSTRACT:
A variable polarity device reverses the polarity of an electrically conductive workpiece and an electrode, having opposite polarities, between positive and negative in a low D.C. range of about 0.5-45 amps. Combined with the device is a control means which schedules a frequency of time rate of the reversing in the low time frequency of about 1-1000 cycles per second as well as the electric current at each polarity to provide a series of time and current defined polarity cycles for D.C. arc welding apparatus.
REFERENCES:
patent: 3071678 (1963-01-01), Neely et al.
patent: 3591759 (1971-07-01), Stand
patent: 3598954 (1971-08-01), Ireland et al.
patent: 3781508 (1973-12-01), Dauer et al.
patent: 4125754 (1978-11-01), Wasserman et al.
patent: 4142089 (1979-02-01), Lau et al.
patent: 4472619 (1984-09-01), Ueda et al.
patent: 4621183 (1986-11-01), Takeuchi et al.
patent: 4672171 (1987-06-01), Cusimano et al.
patent: 4689463 (1987-08-01), Shubert
patent: 4739146 (1988-04-01), Lindland et al.
patent: 4745256 (1988-05-01), Shubert
patent: 4808055 (1989-02-01), Wertz et al.
patent: 4822248 (1989-04-01), Wertz et al.
patent: 4878953 (1989-11-01), Saltzman et al.
patent: 4904843 (1990-02-01), Hori et al.
patent: 4928879 (1990-05-01), Rotolico
patent: 4990739 (1991-02-01), Zaplatynsky
patent: 5021629 (1991-06-01), Shimomura
patent: 5148986 (1992-09-01), Rusch
patent: 5264679 (1993-11-01), Martin
patent: 5349159 (1994-09-01), Mita et al.
Cohen Joel H.
Flowers Gilbert E.
Grubbs Gray W.
Kelly, Jr. Earl L.
Kyselica Stefan P.
General Electric Company
Hess Andrew C.
Narciso David L.
Paschall Mark H.
LandOfFree
Arc welding apparatus with variable polarity reversing device an does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arc welding apparatus with variable polarity reversing device an, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arc welding apparatus with variable polarity reversing device an will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-198355