Stick arc welder with low voltage start

Details Stick arc welder with low voltage start Stick arc welder with low voltage start

2005-02-17

2010-10-26

Ralis, Stephen J (Department: 3742)

Electric heating

Metal heating

By arc

C219S130100, C219S130210, C219S130310

Reexamination Certificate

active

07820943

ABSTRACT:
A system and method for forming an arc between an electrode and a workpiece is disclosed. The present invention includes a method of initiating an arc that includes comparing voltage across output terminals of a stick welder to a voltage threshold, and if the voltage across the output terminals is less than the voltage threshold, increasing the voltage across the output terminals to an arc formation OCV. The output voltage of the stick welder will be driven to a lower OCV if an arc is not formed between an electrode and a workpiece within a given period of time.

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patent: 2004/0099649 (2004-05-01), DeCoster
patent: 0667205 (1995-08-01), None
patent: 61003672 (1986-01-01), None

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