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U.S. Department of Energy
Office of Scientific and Technical Information

DC arc weld starter

Patent ·
OSTI ID:867503
A system for starting an arc for welding uses three DC power supplies, a high voltage supply for initiating the arc, an intermediate voltage supply for sustaining the arc, and a low voltage welding supply directly connected across the gap after the high voltage supply is disconnected.
Research Organization:
AT & T CORP
DOE Contract Number:
AC04-76DP00789
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4950864
OSTI ID:
867503
Country of Publication:
United States
Language:
English