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Class Information
Number: 373/49
Name: Industrial electric heating furnaces > Electroslag remelting device > Power supply system > Control
Description: Subject matter wherein means are provided to control or regulate electrical power to the furnace.

Sub-classes under this class:

Class Number Class Name Patents
373/50 By changing electrode position 20

Patents under this class:

Patent Number Title Of Patent Date Issued
8077754 Pool power control in remelting systems Dec. 13, 2011
7995639 Pulse width modulated power inverter output control Aug. 9, 2011
7180931 Electrode immersion depth determination and control in electroslag remelting furnace Feb. 20, 2007
6226313 Power source circuit and its control for three-phase electric arc furnace to reduce flicker May. 1, 2001
6178191 Method for determination of the tip position of consumable electrodes used in electric smelting furnaces Jan. 23, 2001
5081640 Method of controlling a temperature of a molten metal Jan. 14, 1992
5050185 Process and apparatus for measuring the instability of an arc in an electrical arc furnace for processing liquid metal Sep. 17, 1991
4918705 Furnace enclosure having a clear viewpath Apr. 17, 1990
4852119 Arc exposure monitor Jul. 25, 1989
4698824 Method for controlling an electrothermal process Oct. 6, 1987
4569056 Consumable electrode remelting furnace and method Feb. 4, 1986
4395771 Method and apparatus for controlling process of casting thin walled ingots using electroslag melting process Jul. 26, 1983
3952139 Circuit arrangement for supplying electrode melting furnaces Apr. 20, 1976

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