Electric heating – Metal heating – By arc
Reexamination Certificate
2007-12-04
2007-12-04
Shaw, Clifford C. (Department: 1725)
Electric heating
Metal heating
By arc
C219S130210
Reexamination Certificate
active
10861958
ABSTRACT:
An electric arc welder for performing a pulse welding process by a current between an advancing electrode and workpiece where the welder comprises a short detecting circuit for creating a short signal upon occurrence of a short circuit between the advancing electrode and the workpiece and a boost circuit to create a plasma boost pulse after the short circuit is cleared during the time period when the welder is not outputting the peak pulse current.
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Shaw Clifford C.
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