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