| Patents for H05B 7 - Heating by electric discharge (3,980) |
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| 03/04/1998 | EP0827365A2 Method for cooling graphite electrodes used for metal melting and refining in an electric arc furnace and a ladle |
| 02/17/1998 | CA2082000C Anode for a direct-current electric arc furnace |
| 02/03/1998 | US5715273 Secondary circuit with variable impedance for electric arc furnaces |
| 01/28/1998 | CN1171537A Method of operating arc furnace, and arc furnace |
| 01/27/1998 | US5712464 Method and apparatus of cooking food in a lightwave oven |
| 01/20/1998 | US5710830 Method of and apparatus for segmenting foreground and background information for optical character recognition of labels employing single layer recurrent neural network |
| 01/20/1998 | US5709835 Heating molten metal |
| 01/14/1998 | CN1037011C D. C. furnace for melting scrap iron |
| 01/13/1998 | US5708677 Arc voltage distribution skewness as an indicator of electrode gap during vacuum arc remelting |
| 01/08/1998 | WO1998000568A1 Arc furnace with an electrode receiving chamber |
| 01/08/1998 | DE19626389A1 Lichtbogenofen mit Elektrodenaufnahmeraum Arc furnace electrode receiving space |
| 01/08/1998 | CA2259180A1 Arc furnace with an electrode receiving chamber |
| 01/02/1998 | DE19625539A1 Thermal processing of substances in plasma furnace |
| 01/02/1998 | DE19624481A1 Carrier for large, long, brittle electrodes of electric arc furnace melting e.g. steel scrap |
| 12/31/1997 | WO1997050153A1 Device for electrically connecting an electrode in particular of a metallurgical furnace, with return means |
| 12/30/1997 | CA2070197C Lining for a direct-current electric arc furnace |
| 12/29/1997 | EP0814641A1 Arrangement for transmitting electric energy from a furnace transformer to the electrodes of a three-phase electric furnace |
| 12/24/1997 | WO1997049266A1 Method and apparatus for removing a molten material with a vacuum from a chamber |
| 12/24/1997 | CA2259130A1 Method and apparatus for removing a molten material with a vacuum from a chamber |
| 12/10/1997 | CN2270336Y Electric power rectifying device for silicon carbide smelting |
| 12/09/1997 | US5695669 Method and apparatus of cooking food in a lightwave oven |
| 12/03/1997 | EP0362253B1 Process for treating liquid metals |
| 11/19/1997 | EP0807154A2 Tunable, self-powered integrated arc plasma-melter vitrification system for waste treatment and resource recovery |
| 11/18/1997 | US5688417 DC arc plasma torch, for obtaining a chemical substance by decomposition of a plasma-generating gas |
| 11/11/1997 | US5687187 Process and device for regulating the position of the tip of an electric furnace electrode |
| 11/06/1997 | DE19617191A1 DC supply device for DC arc-furnace e.g. for steel industry |
| 10/14/1997 | US5677925 Power converter device for direct current power supply to an electric arc furnace |
| 10/01/1997 | EP0798389A2 Method of operating an arc furnace and arc furnace |
| 09/30/1997 | US5673285 Concentric electrode DC arc systems and their use in processing waste materials |
| 09/28/1997 | CA2198411A1 Method of operating an arc furnace, and an arc furnace |
| 09/24/1997 | EP0796351A1 Smelting installation with a current supply network with a relatively short-circuit rating |
| 09/24/1997 | CN1160439A Method of firing and stabilising combustion of low-grade coals and device for applying the method |
| 09/17/1997 | CN1159562A Electric arc controller |
| 09/16/1997 | US5666891 Waste conversion unit |
| 09/10/1997 | EP0793732A1 Direct current arc furnace with two or more electrodes |
| 09/10/1997 | EP0733299B1 Submerged arc furnace with vertically movable frame |
| 09/09/1997 | US5665259 Method of cooking food in a lightwave oven using visible light without vaporizing all surface water on the food |
| 09/03/1997 | EP0793401A1 Automatic system for connection of pneumatic and hydraulic hoses on a composite electrode for arc furnaces |
| 09/03/1997 | EP0793400A2 Adapter device for composite electrodes with an auxiliary reactance function on electric arc furnaces |
| 08/28/1997 | WO1997031232A1 Electric furnace assembly |
| 08/27/1997 | EP0733300B1 Process and device for regulating the position of the tip of an electric furnace electrode |
| 08/14/1997 | WO1997029617A1 Electrode and cooling element for a metallurgical vessel |
| 08/13/1997 | EP0737171B1 Glaze for refractory materials |
| 08/06/1997 | EP0616754B1 A torch device for chemical processes |
| 07/30/1997 | EP0786190A1 Method and apparatus of cooking food in a lightwave oven |
| 07/23/1997 | EP0784828A2 Method of and apparatus for segmenting foreground and background information for optical character recognition of labels employing single layer recurrent neural network |
| 07/23/1997 | CN1155228A Method for triggering-igniting CVD-plasma, and apparatus thereof |
| 07/22/1997 | US5651024 Cooled bottom electrode for a direct current electric furnace |
| 07/17/1997 | DE19612383C1 Arc melting furnace |
| 07/15/1997 | US5648168 Outer dielectric layer and an undercoat of a copper layer; permits operation at lower temperature |
| 06/11/1997 | EP0777539A1 Flame-straightening process and device for metal parts |
| 06/10/1997 | US5638398 Method and apparatus for joining new electrode to consumed electrode of electric furnace |
| 06/04/1997 | CN2255708Y Short-net inductionless combined bus bundle structure for electric arc furnace |
| 05/22/1997 | DE19543374A1 Base electrode structure for direct-current arc furnace |
| 05/21/1997 | CN2254614Y Current density regulating device |
| 05/07/1997 | EP0752924A4 Apparatus and method for starting a plasma arc treatment system |
| 04/29/1997 | CA2108003C Improved control system for electric arc furnace |
| 04/22/1997 | CA2081295C Process for the continuous manufacturing of impurity and iron-free electrodes for electric arc furnaces |
| 04/17/1997 | WO1997013610A1 Device for soldering and welding with a light beam |
| 04/16/1997 | EP0768017A1 Method and furnace for making a molten product |
| 04/15/1997 | US5621751 Controlling electrode gap during vacuum arc remelting at low melting current |
| 04/09/1997 | CN1147277A Base electrode of DC heated metallurgical vessel |
| 04/09/1997 | CN1147191A Graphite electrode having joints |
| 04/02/1997 | EP0766374A2 DC power supply device |
| 04/02/1997 | CN1146706A Fastener for fixing electrode connector |
| 03/25/1997 | CA2080551C Light beam heating system |
| 03/19/1997 | EP0653147A4 On-site, biohazardous waste disposal system. |
| 03/19/1997 | CN2250003Y Holder for enlinking electrodes for electric furnaces |
| 03/11/1997 | US5610937 Regulation method for a DC arc furnace |
| 03/11/1997 | US5610935 Method for manufacturing a base anode for a metallurgical vessel |
| 03/05/1997 | CN1144322A Secondary circuit with vairable impedance for electric arc furnaces |
| 02/26/1997 | EP0759525A2 Waste-melting furnace and waste-melting method |
| 02/20/1997 | WO1997006653A1 Bottom electrode for an arc furnace operated with direct current and process for operating the furnace |
| 02/19/1997 | CN1143411A Charging device for arc furnaces |
| 02/05/1997 | CN1142309A Electrode seals for arc furnaces |
| 02/05/1997 | CN1141936A Technology for preparation of oxidation-preventive dip of graphite electrode |
| 01/22/1997 | CN2245841Y Electric stove conducting jaw |
| 01/22/1997 | CN1141113A Process and device for regulating the position of the tip of an electric furnace electrode |
| 01/22/1997 | CN1141112A Submerged Arc furnace with vertically movable frame |
| 01/21/1997 | CA2054774C Direct current electric furnace for melting metal |
| 01/15/1997 | EP0752924A1 Apparatus and method for starting a plasma arc treatment system |
| 01/09/1997 | WO1997000740A1 Flame-straightening process and device for metal parts |
| 01/02/1997 | DE19522642A1 Verfahren und Vorrichtung zum Flammrichten metallischer Bauteile Method and apparatus for flame straightening metal components |
| 12/31/1996 | US5590152 DC arc furnace |
| 12/31/1996 | US5590151 Process for melting scrap iron in an electric furnace and installation for implementing the process |
| 12/31/1996 | US5588982 Process for producing foudry iron |
| 12/27/1996 | EP0750446A1 Graphite electrode having joints |
| 12/27/1996 | EP0700577A4 Method and apparatus for glow discharge plasma treatment of polymer materials at atmospheric pressure |
| 12/24/1996 | US5588018 Metallurgical container comprising a hearth bottom electrode |
| 12/17/1996 | US5586140 Plasma melting method and plasma melting furnace |
| 12/11/1996 | EP0746737A1 Charging device for arc furnaces |
| 12/11/1996 | CN1033523C Technology for producing low-iron silicon-aluminium alloy and self-baking electrode |
| 12/10/1996 | US5583883 Electric arc-furnace stabilization using voltage pulse injection |
| 12/05/1996 | WO1996038691A1 Method of firing and stabilising combustion of low-grade coals and a device for applying the method (variants) |
| 12/05/1996 | WO1996038311A1 Method and apparatus for cleaning surfaces with a glow discharge plasma at one atmosphere of pressure |
| 12/05/1996 | CA2222620A1 Method and apparatus for cleaning surfaces with a glow discharge plasma at one atmosphere of pressure |
| 12/04/1996 | EP0745522A1 Anti theft device for vehicles |
| 11/27/1996 | CN1136462A Therapeutic device of electric arc discharging lamp |
| 11/20/1996 | EP0743811A1 Direct current arc plasma torch, specially conceived for the obtention of a chemical body by decomposition of a plasma gas |
| 11/20/1996 | CA2174571A1 Direct current arc plasma torch, especially for obtaining a chemical body through plasma gas decomposition |