US PATENT SUBCLASS 373 / 65
.~.~ Arc between electrode and crucible exterior

Current as of: June, 1999
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373 /   HD   INDUSTRIAL ELECTRIC HEATING FURNACES

60  DF  ARC FURNACE DEVICE {9}
61  DF  .~ Indirect {3}
65.~.~ Arc between electrode and crucible exterior

DEFINITION

Classification: 373/65

Arc between electrode and crucible exterior:

(under subclass 61) Subject matter wherein the arc is drawn between the electrode tip and the exterior of the crucible.