Arc welding system and method

Details Arc welding system and method Arc welding system and method

2006-09-12

2006-09-12

Shaw, Clifford C. (Department: 1725)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

07105772

ABSTRACT:
A welder using a circuit or method of changing polarity of an AC welding current comprising: the generation of a polarity changing signal, commanding a change in the polarity of the current a given time after generation of the polarity changing signal and reducing the given time upon detection of a short in the welding current.

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European Search Report, Application No. EP 04 00 0936, Dated Mar. 23, 2005, Examiner H. Jaeger.

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