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Class Information
Number: 373/71
Name: Industrial electric heating furnaces > Arc furnace device > Furnace body detail
Description: Subject matter including details of the furnace structure.










Sub-classes under this class:

Class Number Class Name Patents
373/72 Hearth or crucible 146
373/73 Roof 56
373/75 Sidewall 40
373/77 With internal atmosphere control (e.g., pressure, vacuum, etc.) 31


Patents under this class:
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Patent Number Title Of Patent Date Issued
8693518 High temperature industrial furnace roof system Apr. 8, 2014
8693519 Sensor system for bottom electrodes of an electric arc furnace Apr. 8, 2014
8573141 Reversible jamb blocks and method of using the same Nov. 5, 2013
8428096 Removable filler module Apr. 23, 2013
8411723 Support structure of heater Apr. 2, 2013
8411724 Sill and door jamb assembly for electric arc furnace Apr. 2, 2013
8254427 Device for controlling an arc furnace installation Aug. 28, 2012
8217312 Method and device for heating a fluid Jul. 10, 2012
8089999 Heat exchange apparatus and method of use Jan. 3, 2012
8023550 Reactance ballast device Sep. 20, 2011
6999495 Method and apparatus for spatial energy coverage Feb. 14, 2006
6870873 Device for improved slag retention in water cooled furnace elements Mar. 22, 2005
6810068 Electric glass melting furnace, with pivoting wall elements Oct. 26, 2004
6693949 Method and device for operating electric arc furnaces and/or resistance furnaces Feb. 17, 2004
6608856 Crucible melting furnace Aug. 19, 2003
6574263 Method for charging anode into furnace and method for designing furnace Jun. 3, 2003
6563855 Water jacket of arc furnace May. 13, 2003
6501784 Thermal insulation to be inserted between two insulating structures Dec. 31, 2002
6404800 Charging material preheater with replaceable shaft wall portions Jun. 11, 2002
6404799 Water-cooling panel for furnace wall and furnace cover of arc furnace Jun. 11, 2002
6330269 Heat exchange pipe with extruded fins Dec. 11, 2001
6249538 Cooling device with panels for electric arc furnace Jun. 19, 2001
6246712 Arc furnace protection Jun. 12, 2001
6137823 Bi-metal panel for electric arc furnace Oct. 24, 2000
6084902 Electric arc furnace having monolithic water-cooled roof Jul. 4, 2000
5936995 Electric arc furnace with scrap diverting panel and associated methods Aug. 10, 1999
5787109 Furnace vessel for a DC arc furnace Jul. 28, 1998
5740196 End caps and elbows for cooling coils for an electric arc furnance Apr. 14, 1998
5648981 Cooling system for a two component furnace roof Jul. 15, 1997
5561685 Modular spray cooled side-wall for electric arc furnaces Oct. 1, 1996
5473628 Device for ring section furnace Dec. 5, 1995
5384804 Heat shielding cladding Jan. 24, 1995
5357540 High temperature industrial furnace roof structure Oct. 18, 1994
5323417 Metallurgical vessel for direct-current arc equipment Jun. 21, 1994
5299224 Wall assembly for induction furnace Mar. 29, 1994
5297160 Furnace electrode design Mar. 22, 1994
5297159 Direct current-light arc furnace Mar. 22, 1994
5289495 Coolant coils for a smelting furnace roof Feb. 22, 1994
5287382 Wall electrode for a DC electric metallurgical furnace Feb. 15, 1994
5268924 Bottom structure for a DC electric arc furnace Dec. 7, 1993
5257280 Gas introducing and stirring apparatus of metallurgical vessel Oct. 26, 1993
5241559 Electric arc furnace roof Aug. 31, 1993
5218615 Furnace lining and lining brick therefor with improved heat absorbing characteristics Jun. 8, 1993
5199043 Lining for a direct-current electric arc furnace Mar. 30, 1993
5177763 Furnace bottom structure of direct current electric furnace Jan. 5, 1993
5173920 Direct-current electric-arc furnace Dec. 22, 1992
5142650 Bottom electrode for a direct current arc furnace Aug. 25, 1992
5115184 Cooling system for furnace roof having a removable delta May. 19, 1992
5030335 Arrangement for gas collection in aluminium reduction cells having self baking Jul. 9, 1991
4887277 Electric arc furnace Dec. 12, 1989

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