Patents for H05B 7 - Heating by electric discharge (3,980)
03/1992
03/18/1992EP0474883A1 Dc electric furnace for melting metal
03/18/1992EP0474682A1 Closed remelting furnace with a plurality of horizontally mobile bottom elements
03/18/1992CN1059594A Dc electric arc furnace
03/17/1992US5095828 Thermal decomposition of waste material
03/11/1992EP0473809A1 Direct-current arc furnace
03/10/1992CA1297145C Electrode joint thread form
03/04/1992EP0472721A1 Direct current electric furnace.
03/04/1992CN1059252A Compensation energy-saving technique for mine smelting furnace
03/04/1992CN1015770B Electrode jib arrangement
03/04/1992CA2049853A1 Direct-current arc furnace
02/1992
02/27/1992DE4026897A1 Metallurgical vessel for electric arc furnace - has two=part electrode in base with connections for current and cooling water
02/26/1992EP0472254A2 Metallurgical vessel with metal electrode
02/25/1992CA2023993A1 Replacement electrode
02/23/1992WO1992003896A1 Treatment of oxide-containing dusts
02/23/1992CA2089755A1 Treatment of oxide-containing dusts
02/18/1992US5088917 Gas electroburner with electric power supply and assisted ignition
02/13/1992DE4025249A1 Steel scrap DC arc furnace - has oval crucible with offset cathode, copper lined walls and enclosed feed chute
02/13/1992DE4025084A1 DC arc furnace with air-cooled electrodes - has steel plate bottom housing forming anode connection via several conductor attachments
01/1992
01/23/1992DE4022720A1 Untergefaess eines gleichstromlichtbogenofens Untergefaess a DC arc furnace
01/22/1992EP0467770A1 Discharge circuit having a high impedance chocke and use thereof in pressure wave generating apparatus
01/22/1992EP0205439B1 A method for controlling an electrothermal process
01/22/1992CN1058087A Dc arc torch power supply
01/18/1992WO1992002112A1 D.c arc furnace
12/1991
12/16/1991WO1991020176A1 A dc arc torch power supply
12/16/1991CA2085594A1 Dc arc torch power supply
11/1991
11/27/1991EP0457994A1 Gas-electroburner with electrical power supply and ignition aid
11/27/1991CN1056568A Dc electric-arc furnace
11/27/1991CN1056483A Hot spraying method for treatment of graphite electrode
11/13/1991EP0456085A1 Direct current arc furnace
11/12/1991US5064995 Heating device for generating very high temperature
11/10/1991CA2040494A1 Direct-current arc furnace
11/06/1991CN1014590B Controlling form of electron-beam unit
10/1991
10/23/1991EP0453073A2 Improved graphite electrode nipple
10/23/1991EP0452599A2 Arc furnace with consumable electrode
10/16/1991EP0440634A4 Electric arc reactor
10/16/1991EP0436576A4 Electric arc generating device
10/08/1991US5056104 Apparatus for adjusting the position of an electrode in a metal smelting furnace
10/03/1991WO1991014912A1 Direct current electric furnace
10/03/1991CA2057882A1 Direct current electric furnace
10/02/1991EP0449258A2 Furnace bottom structure of direct current electric furnace
10/02/1991DE4010353A1 Operating metallurgical furnace with self-baking electrode - lockable traction rod within electrode
10/01/1991US5054033 Tiltable arc furnace
09/1991
09/24/1991US5052018 Anode for a direct current arc furnace
09/24/1991CA1289311C Baking furance for electrodes
09/20/1991WO1991014911A1 Dc electric furnace for melting metal
09/17/1991US5050185 Process and apparatus for measuring the instability of an arc in an electrical arc furnace for processing liquid metal
09/03/1991US5046145 Improved arc reactor with advanceable electrode
09/03/1991CA1288202C Protection of graphite electrodes
08/1991
08/28/1991CN2083826U Electric stove electrode shutoff proof device
08/20/1991CA1287862C Oxidation retarded graphite or carbon electrode and method for producing the electrode
08/14/1991EP0441733A1 Metallurgical vessel with at least one electrode passing through the bottom wall
08/14/1991EP0440634A1 Electric arc reactor.
07/1991
07/17/1991EP0437037A2 Method and apparatus for closing the gap between an electrode and its furnace cover in an electric furnace
07/17/1991EP0436873A1 Stopper for obturating holes provided for anode rods in anode blocks during calcination treatment
07/17/1991EP0436576A1 Electric arc generating device.
07/10/1991CN1052878A Anti-oxidation coating for graphite electrode
07/02/1991US5028370 Sintering, Coal Mining Debris
07/02/1991US5028248 Method of melting materials and apparatus therefor
06/1991
06/29/1991CA2033296A1 Plug for sealing the recesses for anode rods in anode blocks during the calcination process
06/26/1991CN1052585A Direct-arc electric furnace fed with controlled current and method to feed direct-arc furnace with controlled current
06/12/1991CN1052153A Single-tank control cabinet for electrolysis of aluminium
06/05/1991EP0429774A1 Direct-arc electric furnace fed with controlled current and method to feed a direct-arc furnace with controlled current
05/1991
05/22/1991EP0428150A1 Bottom electrode for a direct current arc furnace
05/15/1991CN1012621B Antioxidation protective coating for carbon articles
05/14/1991US5015518 Graphite body
05/14/1991CA1284164C Arrangement for suspension of a baking furnace for electrodes
04/1991
04/24/1991EP0423370A1 Method of treatment with plasma and plasmatron
04/24/1991EP0288566B1 Induction plasma installation
04/17/1991EP0423003A1 Electrical connecting device to be placed on the wall of a metallurgical vessel and in contact with a molten metal
04/17/1991EP0422406A2 Anode for direct current arc furnace
04/10/1991EP0271578B1 Method for meltin metal in an induction plasma furnace
04/09/1991CA1282841C Mig welder attachment for an electric hand drill
04/02/1991CA1282459C Arc exposure monitor
03/1991
03/12/1991US4998709 Connector for graphite electrodes made by extrusion blending
03/12/1991CA1281355C Floor of electrically heated melting furnace, particularly a direct current furnace
03/12/1991CA1281354C Method and apparatus for regulating arc discharge furnace
03/12/1991CA1281353C Method and apparatus for electrically balancing three-phase arc discharge furnaces
03/06/1991EP0415280A2 Method for on-line monitoring of an electric arc furnace and method of control
03/06/1991CN1049714A Direct-current electric-arc furnace
02/1991
02/27/1991EP0413970A1 Direct current arc furnace
02/22/1991CA2023041A1 Direct-current electric-arc furnace
02/06/1991CN1049082A Method for control energy state of electric slag furnace with electrode put in melted slag
01/1991
01/29/1991US4988844 Process for controlling the strike positions of a plurality of electron beams on a melting bath
01/23/1991CN1011376B Directional electric arc heating device
01/16/1991EP0408476A2 Power-supply cable with internal fluid cooling
01/16/1991CN2069638U Water-cooling complex electrode
01/06/1991CA2017470A1 Process for reducing contamination of high temperature melts
01/06/1991CA2012238A1 Furnace enclosure having a clear viewpath
01/02/1991EP0405700A2 Lowering system for electrodes
01/01/1991US4982411 Wall electrode for direct current powered electric arc furnace
12/1990
12/27/1990CA1278346C Method of continuously overheating large volumes of gas
12/26/1990CA2019747A1 Apparatus for adjusting the position of an electrode in a metal smelting furnace
12/19/1990EP0403413A1 Procedure and device for measuring the instability of an arc in an electric furnace for the treatment of liquid metals
12/18/1990CA1278008C Electric arc melting apparatus and associated method
12/15/1990CA2019008A1 Process and apparatus for measuring the instability of an arc in an electric furnace used for molten metal treatment
12/13/1990WO1990015163A1 Closed remelting furnace with a plurality of horizontally mobile bottom elements
12/11/1990US4977576 Safety flow stopper for water-cooled electrode
12/11/1990CA1277486C Method and installation for the maintenance of an oven's lining
11/1990
11/22/1990EP0398699A1 A process for the treatment of liquid materials
11/14/1990CN1047006A Particulate electrode paste and making method
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