| Patents for H05B 7 - Heating by electric discharge (3,980) |
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| 03/21/1989 | US4815097 Method and apparatus for stabilizing electric furnace arcs using an externally applied magnetic field |
| 03/21/1989 | US4813805 Joint for carbon electrodes |
| 03/14/1989 | US4813055 Furnace cooling system and method |
| 03/09/1989 | WO1989002211A1 Graphite electrode holder for electric furnace |
| 03/08/1989 | EP0306417A1 Method and device for measuring the position at the current lines and the ends of the electrodes in a multiphase electrical furnace with immersed arcs |
| 03/08/1989 | CN2033610U Electric warming shoes |
| 03/01/1989 | CN1031433A Microprosessor control of automatical regulator for electrodes in arc furnace |
| 02/28/1989 | US4808795 Method of continuously overheating large volumes of gas |
| 02/15/1989 | CN2032783U Controller for measuring position and arc length of double-electrode |
| 02/14/1989 | US4805186 Process for the continuous melting of scrap in an electric direct-current furnace and electric furnace for carrying out the process |
| 01/31/1989 | US4802188 Water trap manifold for water cooled electrodes |
| 01/26/1989 | DE3817855A1 Device for detecting and evaluating process parameters which arise during the remelting of an electrode to give a metal block in a vacuum arc furnace |
| 01/25/1989 | EP0300411A2 Melting retort and method of melting materials |
| 01/25/1989 | CN2031592U Electrode self clamp for calcium carbide furance |
| 01/11/1989 | EP0298218A2 Remelting furnace with ingot gravimetric control |
| 01/10/1989 | US4797897 Apparatus for controlling the distance of a melting electrode from the surface of the melted material in a vacuum arc furnace |
| 12/28/1988 | CA1247684A Graphite electrode for arc furnaces and method for manufacturing same |
| 12/22/1988 | DE3810354A1 Direct-current arc furnace system and method for its operation |
| 12/22/1988 | DE3719258A1 Heavy-current supply for smelting furnaces or crucible furnaces |
| 12/21/1988 | CN88202223U Electrode feeding device for mining heating furnace |
| 12/20/1988 | US4792124 Sub-lance installation for carrying out measurements and/or taking samples in a metallurgical furnace |
| 12/20/1988 | CA1247179A1 Electrical connecting device to be mounted on the wall of a metallurgical vessel in direct contact with a molten metal |
| 12/20/1988 | CA1247177A1 High power arc heater |
| 12/07/1988 | EP0293861A2 Electrode seal assembly |
| 12/01/1988 | WO1988009388A1 Process for treating liquid metals |
| 11/24/1988 | DE3714870A1 Electrode regulating device for an arc furnace |
| 11/23/1988 | EP0291680A1 Arc furnace with a charging area on the side |
| 11/08/1988 | US4783790 Direct-current arc furnace for steelmaking |
| 11/02/1988 | EP0288566A1 Induction plasma installation |
| 11/01/1988 | US4780944 Method and tool for the freeing of parts held fast together |
| 10/27/1988 | DE3704102C1 Sealing arrangement at the passage opening for an electrode |
| 10/20/1988 | DE3712341A1 Oxidation protection for graphite electrodes |
| 10/04/1988 | US4775982 Crucible for electric arc furnace |
| 10/04/1988 | US4775981 Melting furnace with weight-related control of the consumable electrode |
| 10/04/1988 | CA1242756A1 Signal generating circuit for reactive energy compensation of an arc furnace |
| 09/22/1988 | WO1988007315A1 Method of melting and refining metals, and an apparatus for cooling electrodes used therefor |
| 09/14/1988 | EP0281901A1 Device for generating a luminescent discharge |
| 09/14/1988 | CN87209721U Microcomputer automatic controlled system for electric stove electric stove electrode |
| 09/13/1988 | US4770825 Graphitization |
| 09/13/1988 | CA1242000A1 Plasma arc bulk air heating apparatus |
| 09/07/1988 | EP0281262A1 Self-baking electrode with pressure advancement |
| 08/31/1988 | EP0280349A1 Sub-lance installation for carrying out measurements and/or taking samples in a metallurgical furnace |
| 08/23/1988 | US4766598 Electric arc furnace and method with coaxial current flow |
| 08/16/1988 | US4764208 Method of igniting a plasma arc as well as an arrangement for carrying out the method |
| 08/16/1988 | CA1240482A1 Silicon melting and evaporation method and apparatus for high purity applications |
| 08/09/1988 | US4763337 Process for melting particulate material |
| 08/09/1988 | US4762165 Arc melting and casting method and apparatus thereof |
| 08/09/1988 | US4761892 Apparatus for measuring the length of electrodes in an electric furnace |
| 07/27/1988 | EP0275384A1 Metallurgic vessel, particularly an electric furnace with one or more bottom electrodes |
| 07/19/1988 | US4759032 Electrode seal assembly |
| 07/13/1988 | EP0273975A1 Induction plasma furnace |
| 07/12/1988 | US4756813 Self-baking electrode |
| 07/05/1988 | US4756004 Self baking electrode with pressure advancement |
| 07/05/1988 | US4755137 Process and installation for maintaining the lining of a furnace shell |
| 07/05/1988 | US4754542 Process of fabricating spar-type consumable electrode for vacuum arc melting of zirconium or titan alloys with wedged-on segment |
| 06/28/1988 | US4754464 Bottom electrodes for arc furnaces |
| 06/28/1988 | US4754463 With a central channel for feeding material into the furnace |
| 06/22/1988 | EP0271578A1 Method for meltin metal in an induction plasma furnace |
| 06/09/1988 | DE3640298A1 Elektrodentragvorrichtung Electrode support device |
| 06/08/1988 | EP0270520A2 Plasma arc igniting method |
| 06/08/1988 | EP0269735A1 Induction plasma furnace |
| 06/08/1988 | CN87106972A Electrode jib arrangement |
| 06/07/1988 | US4750188 Electrode arrangement for electroarc or reducing furnaces |
| 06/07/1988 | US4750187 Three layers of aluminum and aluminum, iron and nickel, titanium, boron and silicon alloys |
| 06/07/1988 | US4749408 Method of bottom blowing operation of a steel making electric furnace |
| 06/02/1988 | WO1988004128A1 Electrode support device |
| 06/01/1988 | EP0269604A2 Process and furnace for smelting fines, in particular metal or metal-oxide dusts |
| 06/01/1988 | EP0269465A1 Process for the continuous melting of scrap in a DC-arc furnace, and DC-arc furnace for performing said process |
| 05/25/1988 | EP0267963A1 Induction plasma installation |
| 05/19/1988 | WO1988003741A1 Induction plasma installation |
| 05/17/1988 | US4745619 Electrode assembly for electric arc furnaces |
| 05/17/1988 | US4745338 For refining raw material |
| 05/03/1988 | US4742529 Three-phase arc furnace |
| 05/03/1988 | US4742528 Compensation for power feed line weight in weight measurement devices |
| 04/26/1988 | US4740990 Graphite electrode with protective coating and method for its production |
| 04/14/1988 | DE3633517A1 Process for melting a ceramic material and electric arc furnace for carrying out the process |
| 04/05/1988 | US4736384 Electrode adding apparatus |
| 03/30/1988 | EP0261477A1 Plasma reactor |
| 03/29/1988 | CA1234595A1 System for control of the electroslag remelting |
| 03/23/1988 | EP0260529A1 Electrode joint |
| 03/22/1988 | CA1234402A1 Tubular graphite electrode compressed by inner tensioned coolant pipe |
| 03/16/1988 | EP0259503A1 Induction plasma installation |
| 03/08/1988 | US4730338 Coupling construction for an electric furnace |
| 03/08/1988 | US4730337 Method and apparatus for operating a direct-current arc furnace |
| 03/08/1988 | US4729689 Electrode member and process for the production thereof |
| 03/02/1988 | EP0258101A1 Process for melting scrap, and electric furnace for performing the process |
| 02/23/1988 | US4726995 Oxidation retarded graphite or carbon electrode and method for producing the electrode |
| 02/16/1988 | US4725939 System for supply of direct current to at least two electrical loads with a common polarity, in particular for multiple electric arcs |
| 02/16/1988 | US4725161 Bonding material of pitch particles and a foaming agent |
| 02/16/1988 | CA1232933A1 Conductive bottom for direct current electric arc furnaces |
| 02/11/1988 | DE3627126A1 Electrode holder for electric arc furnaces |
| 02/10/1988 | EP0255793A1 Electrical direct current furnace for the fusion of iron scrap |
| 02/09/1988 | CA1232632A1 Tubular graphite electrode capable of composite or tip use |
| 02/03/1988 | EP0255273A1 Plasma arc heating apparatus and method |
| 02/02/1988 | US4722684 Arrangement for suspension of a baking furnace for electrodes |
| 01/26/1988 | CA1231997A1 Stuffing system for electrodes |
| 01/20/1988 | EP0253509A1 Electrodes and joints therefor |
| 01/20/1988 | EP0253435A1 Process and device for igniting an arc in an environment with reduced pressure |
| 01/19/1988 | US4720838 Contact connection between a contact electrode and a cooling medium and a current supply lines for an electrical melting furnace |
| 01/14/1988 | WO1988000426A1 Induction plasma furnace |