| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 04/15/1987 | CN86102782A Electricity-saving compensation technique for electric-arc furnaces |
| 04/14/1987 | CA1220503A1 Tiltable arc furnace with discharge orifice in extension bay base |
| 04/14/1987 | CA1220381A1 Feeder for pulverized coal |
| 04/14/1987 | CA1220351A1 Melting scrap metal and ingestion of solids in molten metal |
| 04/14/1987 | CA1220347A1 Recovery of aluminium scrap |
| 04/09/1987 | WO1987002124A1 Melting and holding furnace |
| 04/08/1987 | EP0217208A2 Bottom of an electric smelt furnace, in particular of a direct current one |
| 04/07/1987 | US4655436 Method and apparatus for recovering and reusing energy from a melting furnace |
| 04/07/1987 | CA1220023A1 Method for operating a metallurgical melting furnace and metallurgical melting furnaces |
| 04/02/1987 | DE3533755A1 Furnace vessel of an electric arc furnace |
| 04/01/1987 | EP0216187A2 Metallurgical-furnace vessel, in particular of an arc furnace |
| 04/01/1987 | CN86106511A Gas collector for metallurgical vessels |
| 03/31/1987 | US4654858 Cold hearth melting configuration and method |
| 03/31/1987 | US4654076 Smelting |
| 03/24/1987 | US4653067 Current feed for an electrode of an electric smelting furnace |
| 03/24/1987 | US4653065 Preheating mechanism for use with duplex electric-arc furnace system |
| 03/24/1987 | US4653064 Gas collector for metallurgical vessels |
| 03/24/1987 | US4651810 Checkerwork for upright regeneration chambers of a glass melting furnace |
| 03/17/1987 | US4651326 Electric furnace arrangement |
| 03/12/1987 | DE3611948A1 Discharging control device for a rotary roaster, burner and/or calciner |
| 03/12/1987 | DE3601621C1 Method and device for renovating damaged and/or worn linings in industrial furnaces |
| 03/03/1987 | US4647021 Apparatus for introducing filling material which is capable of flow into a tap hole disposed in the bottom of a metallurgical vessel |
| 02/26/1987 | WO1987001137A1 Method and device for treatment of melt |
| 02/25/1987 | EP0211167A1 Aluminium vacuum furnace |
| 02/25/1987 | CN85202632U Automatic regulator of voltage for hydraulic transmission arc-furnace |
| 02/24/1987 | US4646318 Crucible furnace with adjustable electrodes |
| 02/24/1987 | US4646316 Electric connecting device for contacting a molten metallic mass |
| 02/24/1987 | US4646315 Arc furnace burner control method and apparatus |
| 02/17/1987 | US4644558 Roof assembly for an electric arc furnace |
| 02/17/1987 | US4643404 Tiltable metallurgical vessel arrangement |
| 02/04/1987 | CN86200508U Self-locking clack-shell type material charge pot |
| 02/03/1987 | US4641319 Method for quantitative discharge of molten material |
| 01/28/1987 | EP0209735A1 Arc furnace |
| 01/27/1987 | US4639928 Disc means for an electrode for use in electric arc furnaces |
| 01/20/1987 | US4638488 Fine grains producing apparatus |
| 01/20/1987 | US4638487 Shroud for arc furnace |
| 01/20/1987 | US4637590 Method and apparatus for opening and closing a taphole in furnaces |
| 01/20/1987 | EP0190313A4 Method and apparatus for continuous steelmaking. |
| 01/20/1987 | CA1216754A1 Process of making steel by melting sponge iron in an electric arc furnace |
| 01/13/1987 | US4637034 Cooling panel for electric arc furnace |
| 01/13/1987 | US4637033 Bottom electrode for a direct current arc furnace |
| 01/13/1987 | CA1216618A1 Plasma arc furnaces |
| 01/13/1987 | CA1216423A1 Apparatus for submerging, entraining, melting and circulating metal charge in molten media |
| 01/10/1987 | CN85101332A Bottom, particularly for direct current arc furnace |
| 01/07/1987 | EP0207929A1 Electric furnace, in particular a plasma furnace |
| 01/07/1987 | EP0207656A1 Recovery of metals from their alloys with lead |
| 01/02/1987 | DE3541873C1 Furnace vessel of an electric arc furnace |
| 12/31/1986 | CN85203441U Energy-saving unit of coal dry heat stepping for industrial boiler |
| 12/31/1986 | CN85202481U Non-consumable electrode electroarc furnace for magnetic control smelting |
| 12/30/1986 | US4633480 Liquid cooled cover for electric arc furnace |
| 12/30/1986 | US4633184 Device for generating a signal corresponding to a variable magnitude associated with the reactive power of an arc furnace in order to control a reactive power compensator |
| 12/30/1986 | EP0206262A1 Checkerwork for vertical regenerator chambers of glass furnaces |
| 12/17/1986 | CN86102473A Cold hearth melting configuration and method |
| 12/16/1986 | US4630281 Arc furnace with variable capacity |
| 12/10/1986 | CN85104310A An electrode-breaking safety device for the electrode of an electric arc furnace |
| 12/09/1986 | CA1214941A1 Method for the fabrication of special steels in metallurgical vessels |
| 12/03/1986 | EP0203339A2 Device to raise and pivot the top of an arc furnace |
| 12/03/1986 | EP0203301A1 Process and device for operating a direct current arc furnace |
| 12/02/1986 | US4626654 Metallurgical plasma melting process |
| 11/26/1986 | CN86103303A Machinery for cutting outer skin of carbon electric pole |
| 11/20/1986 | EP0201669A1 Direct current arc furnace or ladle |
| 11/20/1986 | EP0201569A1 Carbon electrode electric furnace for smelting and refining ores |
| 11/18/1986 | CA1214192A1 Plasma melting furnace with other added gas streams |
| 11/12/1986 | EP0201379A1 Process and tilting control system for vessels containing liquid metal |
| 11/12/1986 | EP0201178A2 Plasma-heated sintering furnace |
| 11/05/1986 | EP0200671A2 Furnace, particularly a metal-smelting or heat-retaining furnace |
| 11/05/1986 | CN85103458A Technique for reforming rotary furnace |
| 10/29/1986 | EP0199199A2 Cold hearth melting configuration and method |
| 10/21/1986 | US4618963 Direct current arc furnace |
| 10/21/1986 | CA1212978A1 Electrode assembly for arc furnaces |
| 10/15/1986 | CN85102902A Process for boiling smelting |
| 10/14/1986 | US4617673 Electric arc furnace having a space provided on one side of the furnace vessel for accommodating charging material |
| 10/14/1986 | US4617672 Electric furnace arrangement |
| 10/14/1986 | CA1212709A1 Furnace panel for use in an arc furnace |
| 10/14/1986 | CA1212542A1 Melting furnace of a rigid structure |
| 10/09/1986 | WO1986005865A1 Furnace heating |
| 10/08/1986 | EP0196432A1 Arc furnace |
| 10/01/1986 | CN85100456A Electricity saving high productivity electric-arc furnace |
| 09/30/1986 | US4615035 Bottom electrode arrangement for an electric furnace |
| 09/24/1986 | CN86101289A Electrical connection device intended to be placed through the wall of a direct-current metallurgical furnace |
| 09/23/1986 | CA1211777A1 Plasma melting furnace arrangement |
| 09/23/1986 | CA1211629A1 Submerged oxygen-hydrogen combustion melting of glass |
| 09/03/1986 | EP0192991A1 Metallurgical melting furnace |
| 09/03/1986 | EP0093117B1 Electric furnace dome |
| 09/02/1986 | US4610016 Industrial furnace |
| 09/02/1986 | US4609400 Method and apparatus for preheating charge materials for continuous steelmaking |
| 08/19/1986 | US4607374 Method for controlling arc furnace |
| 08/19/1986 | CA1210039A1 Method and means of charging electrothermic smelting furnaces |
| 08/19/1986 | CA1210038A1 Arc furnace installation with shroud |
| 08/13/1986 | EP0190313A1 Method and apparatus for continuous steelmaking. |
| 08/12/1986 | US4606055 DC arc furnace having starting equipment |
| 08/05/1986 | US4604135 Apparatus and process for the metallurgical aftertreatment of premelted metals |
| 07/29/1986 | US4603423 Process and device for the cooling of furnaces |
| 07/29/1986 | US4602768 Apparatus for determining the presence of a metallic melt in a passage channel of a metallurgical furnace or of a casting ladle |
| 07/29/1986 | CA1208439A1 Construction of regenerator furnaces |
| 07/22/1986 | CA1208008A1 Method and apparatus for charging a furnace |
| 07/16/1986 | EP0187592A1 Process and device for smelting light metals |
| 07/15/1986 | US4601042 Electric arc furnaces |
| 07/08/1986 | CA1207143A1 Metal melting furnace |
| 06/05/1986 | WO1986003282A1 Carbon electrode electric furnace for smelting and refining ores |