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Class Information
Number: 373/65
Name: Industrial electric heating furnaces > Arc furnace device > Indirect > Arc between electrode and crucible exterior
Description: Subject matter wherein the arc is drawn between the electrode tip and the exterior of the crucible.

Patents under this class:

Patent Number Title Of Patent Date Issued
8240169 Vitreous silica crucible manufacturing apparatus Aug. 14, 2012
8009717 Process and equipment for the treatment of loads or residues of non-ferrous metals and their alloys Aug. 30, 2011
6980580 Electrode arrangement as substitute bottom for an electrothermic slag smelting furnace Dec. 27, 2005
5694413 Procedure and apparatus for continuous supply of heat in electrically conductive bulk goods Dec. 2, 1997
5544194 Apparatus for degreasing electrically conductive material Aug. 6, 1996
5365542 Anode for a direct current arc furnaces Nov. 15, 1994
5199043 Lining for a direct-current electric arc furnace Mar. 30, 1993
5189682 Method for increasing the efficiency of a direct current electric arc furnace Feb. 23, 1993
5173920 Direct-current electric-arc furnace Dec. 22, 1992
5132984 Segmented electric furnace Jul. 21, 1992

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