| Patents for H05B 7 - Heating by electric discharge (3,980) | 
|---|
| 01/13/1988 | EP0252843A1 Plasma-heated rotary drum furnace mechanically fed with materials to be treated | 
| 01/13/1988 | EP0252621A2 Protection of graphite electrodes | 
| 01/12/1988 | CA1231396A1 Spar type consumable electrodes for vacuum arc melting of zirconium or titanium alloys | 
| 12/29/1987 | US4716572 Method for coating carbon and graphite bodies | 
| 12/22/1987 | US4715041 Bath electrode for pot furnace | 
| 12/17/1987 | WO1987007813A1 Marks for controlling the assembly of conical nippled electrodes | 
| 12/16/1987 | EP0248829A1 Control device for a melt electrode. | 
| 12/15/1987 | CA1230387A1 Electric arc plasma torch | 
| 12/03/1987 | WO1987007468A1 Induction plasma furnace | 
| 12/03/1987 | WO1987007467A1 Induction plasma installation | 
| 12/03/1987 | WO1987007307A1 Method for melting a metal in an induction plasma furnace | 
| 12/02/1987 | EP0247064A1 Apparatus for conducting current to an electrode in arc welding, arc cutting or the like operations | 
| 11/26/1987 | DE3617428A1 Process and apparatus for preparing electrically conductive refractory building materials and use of these building materials | 
| 11/19/1987 | EP0245764A1 An electrically conductive and oxidation-stable graphite electrode coated with silicon, and process for its production | 
| 11/19/1987 | DE3616344A1 Method of determining the melting state of the charge in a three-phase-fed arc furnace | 
| 11/19/1987 | DE3616289A1 Electrode for electrothermal methods, especially for the production of steel | 
| 11/17/1987 | US4707583 Plasma heated sintering furnace | 
| 10/27/1987 | US4703493 Seal for an electrode hole in an electric arc furnace | 
| 10/27/1987 | US4703492 Joined carbon electrodes and method for the joining thereof | 
| 10/27/1987 | CA1228605A1 Carbonaceous articles having oxidation prohibitive coatings thereon | 
| 10/20/1987 | US4701932 Method for regulating the electrodes in a furnace having freely burning electric arcs | 
| 10/20/1987 | US4701931 Electrically conductive bricks | 
| 10/20/1987 | US4701249 Mobile apparatus for cleaning remnants of carbon anode blocks | 
| 10/20/1987 | CA1228388A1 Electrode holder system for electrothermic furnace | 
| 10/15/1987 | DE3612174A1 Method and apparatus for lengthening steel heating electrodes of an aftertreatment plant for molten steel | 
| 10/14/1987 | CN87102214A Process for the production of molded graphite articles having an electrically conductive and oxidation-stable coating | 
| 10/13/1987 | US4700356 Contact jaw for an electrode mount | 
| 10/13/1987 | US4700355 Electrical melting furnace exchangeable electrode assembly a method for changing a contact electrode assembly | 
| 10/13/1987 | US4700315 Method and apparatus for controlling the glow discharge process | 
| 10/07/1987 | EP0240444A1 Process and device to control the position of an injection lance in a metallurgical vessel | 
| 10/06/1987 | US4698825 Carbon embedded in ceramic matrix | 
| 10/06/1987 | US4698824 Method for controlling an electrothermal process | 
| 09/29/1987 | US4697273 Electrode structure for a bath of molten metal | 
| 09/29/1987 | CA1227306A1 Method for continuous production of elongated carbon bodies | 
| 09/24/1987 | WO1987005775A1 Induction plasma installation | 
| 09/23/1987 | EP0237780A2 Method of producing graphite articles provided with an electroconductive and oxidation-resistant film | 
| 09/22/1987 | US4696014 Self-baking electrodes | 
| 09/17/1987 | DE3608338A1 Hydraulic actuator for an electrode support arm of an arc furnace | 
| 09/15/1987 | US4694464 Plasma arc heating apparatus and method | 
| 09/09/1987 | EP0235465A1 Electrical connecting device to be arranged in a wall of a metallurgical direct current furnace | 
| 09/08/1987 | US4692930 Floor of electrically heated melting furnace, particularly a direct current furnace | 
| 09/08/1987 | US4692929 Self-baking electrode for electric arc furnaces and the like | 
| 09/08/1987 | CA1226609A1 Electrode for electric arc furnaces | 
| 09/02/1987 | EP0234477A1 Electrode for an arc furnace | 
| 09/02/1987 | EP0234270A1 Three-phase arc furnace | 
| 09/01/1987 | US4691325 Control apparatus for a direct current arc furnace | 
| 09/01/1987 | US4691324 Electrode connection | 
| 08/26/1987 | EP0233398A1 Graphite electrode with protective coating and method for its production | 
| 08/25/1987 | US4689800 Method of melting raw material with an electric arc furnace | 
| 08/25/1987 | US4689799 Scalloped nipple for water-cooled electrodes | 
| 08/12/1987 | EP0231880A2 Direct-current arc furnace for steelmaking | 
| 08/11/1987 | US4686687 Anode system for plasma heating usable in a tundish | 
| 08/04/1987 | US4685112 Electrical connection device intended to be placed through the wall of an electrical direct-current metallurgical furnace | 
| 07/30/1987 | WO1987004583A1 Three-phase arc furnace | 
| 07/29/1987 | EP0230180A1 Process and installation for maintaining the lining of a furnace vessel | 
| 07/29/1987 | EP0229968A1 Electrode adding apparatus | 
| 07/28/1987 | US4683577 Method and apparatus for regulating arc discharge furnace | 
| 07/21/1987 | US4682341 Electric arc furnace | 
| 07/21/1987 | CA1224516A1 Electric arc fired cupola for remelting of metal chips | 
| 07/16/1987 | DE3600662A1 Method and device for measuring the lowering depth of an electrode of an arc furnace | 
| 07/15/1987 | EP0228864A2 Process for sintering extruded powder shapes | 
| 07/15/1987 | CN86209427U Water injecting internally cooled conductive electrode | 
| 07/07/1987 | US4679206 Electrode joint thread form | 
| 07/07/1987 | US4678434 Baking furnace for electrodes | 
| 06/30/1987 | US4677643 Device for feeding one or a plurality of electrodes in an electrothermal furnace | 
| 06/23/1987 | US4675878 Method and device for the melting and heating of materials | 
| 06/18/1987 | WO1987003772A1 Control device for a melt electrode | 
| 06/16/1987 | US4674102 Electric arc furnace | 
| 06/16/1987 | US4674101 Arc-heating type extra-furnace refining apparatus | 
| 06/16/1987 | EP0225549A2 Electrically conductive brick | 
| 06/16/1987 | EP0225548A2 Brick for a bottom electrode, a rear lining or a hearth connection | 
| 06/10/1987 | EP0225200A1 DC power supply device for at least two electric loads with a common polarity, especially for supplying multiple electric arcs | 
| 06/09/1987 | US4672628 Assembly for the automatic cooling water connection to water-cooled combination electrodes for electric arc furnaces | 
| 06/09/1987 | US4671822 ZrB2 -containing sintered cermet | 
| 06/09/1987 | CA1222789A1 Method and means for connecting a plasma generator to a reactor | 
| 06/02/1987 | US4670884 Rotating carbon or graphite electrode column to be used both in open- and submerged-arc furnaces | 
| 05/27/1987 | EP0223205A1 Oxidation retarded graphite or carbon electrode and method for producing the electrode | 
| 05/26/1987 | US4669087 Control system for electroslag remelting | 
| 05/26/1987 | US4668853 Arc-heated plasma lance | 
| 05/26/1987 | US4668298 Silicon carbide, binders, adhesion, metal powder, sintering, melting point depressant | 
| 05/20/1987 | EP0222488A2 Electric arc furnace electrode control | 
| 05/19/1987 | US4666775 Process for sintering extruded powder shapes | 
| 05/13/1987 | EP0221270A1 Connexion for the contact electrode of a direct-current arc furnace or a resistance-melting furnace | 
| 05/12/1987 | US4665530 Apparatus for replacing the electrodes of electric arc furnaces | 
| 05/12/1987 | US4663844 Device for cutting an electrode casing | 
| 05/05/1987 | US4663764 Method and apparatus for electrically balancing three-phase arc discharge furnaces | 
| 05/05/1987 | US4663763 Charge-load support for a glow discharge furnace | 
| 04/30/1987 | DE3538490A1 Power supply to a self-clamping electrode | 
| 04/29/1987 | EP0219650A1 Arrangement of contact electrodes for direct-current arc furnaces or resistance-melting furnaces | 
| 04/29/1987 | EP0219649A1 Arrangement of contact electrodes for direct-current arc furnaces or resistance-melting furnaces | 
| 04/15/1987 | EP0218141A1 Scalloped nipple for water-cooled electrodes | 
| 04/15/1987 | EP0091907B1 A method and device for clamping the electrode contact shoes around the electrode of an electric furnace | 
| 04/15/1987 | CN85107255A Controlling form of the electron-beam unit | 
| 04/14/1987 | CA1220503A1 Tiltable arc furnace with discharge orifice in extension bay base | 
| 04/08/1987 | EP0217208A2 Bottom of an electric smelt furnace, in particular of a direct current one | 
| 04/07/1987 | CA1220023A1 Method for operating a metallurgical melting furnace and metallurgical melting furnaces | 
| 04/01/1987 | EP0216471A2 Sealing device for electrode openings in electric arc furnaces | 
| 03/31/1987 | CA1219890A1 Combination electrode for arc furnaces having a protective sheath of graphite-ceramic material | 
| 03/24/1987 | US4653067 Current feed for an electrode of an electric smelting furnace | 
| 03/24/1987 | US4653066 Electrode holder assembly and electrode clamp for electric arc furnaces |