| Patents for F27B 3 - Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces (6,383) |
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| 06/05/1985 | EP0143427A2 Method and aparatus for controlling an ablation liquefaction process |
| 06/04/1985 | US4521890 Plasma arc furnaces |
| 06/04/1985 | US4521238 Method and apparatus for controlling an ablation liquefaction process |
| 06/04/1985 | US4521235 Method and apparatus for controlling wall layer thickness in a liquefaction process |
| 06/04/1985 | CA1188095A1 Smelting furnace |
| 05/23/1985 | WO1985002251A1 Charge forming preheating apparatus and method |
| 05/14/1985 | US4517678 Apparatus for sealing electrodes in electric arc furnaces |
| 05/08/1985 | EP0140401A1 Cooled panel for furnaces |
| 03/27/1985 | EP0135103A1 Direct current arc furnace |
| 03/27/1985 | EP0134857A1 Method for the fabrication of special steels in metallurgical vessels |
| 03/26/1985 | US4506726 Method of controlling gas flow |
| 03/26/1985 | CA1184391A1 Method and device for recuperating combustible gas generated in a smelter oven |
| 03/19/1985 | US4506370 Arc furnace installation with shroud |
| 03/19/1985 | US4505210 Multiple hearth furnace chamber |
| 03/13/1985 | EP0133931A1 Cooling arrangement of a bottom electrode of a direct current arc furnace |
| 03/13/1985 | EP0133925A1 Bottom electrode arrangement for a direct current arc furnace |
| 03/12/1985 | US4504307 Method for carrying out melting, melt-metallurgical and/or reduction-metallurgical processes in a plasma melting furnace as well as an arrangement for carrying out the method |
| 03/06/1985 | EP0133652A1 Protective device for a bottom electrode of a direct current arc furnace |
| 02/05/1985 | US4497475 Nozzle assembly for a metallurgical furnace |
| 01/29/1985 | US4496316 Target wall air jet for controlling combustion air |
| 01/29/1985 | US4496315 Port wall air jet for controlling combustion air |
| 01/08/1985 | US4493088 Plasma melting furnace |
| 01/08/1985 | US4492587 Method of fusing vanadium pentoxide powder |
| 01/02/1985 | EP0129975A1 Recovery of aluminium scrap |
| 01/01/1985 | US4491952 Electric furnace dome |
| 01/01/1985 | US4491474 Metal scrap recovery system |
| 12/27/1984 | EP0128965A1 Process for operating a metallurgical melting-furnace, and metallurgical melting-furnace |
| 12/25/1984 | US4490827 Feeding electric current to twin-vessel arc furnaces |
| 12/25/1984 | US4490168 Process of making steel by melting sponge iron in an electric arc furnace |
| 12/05/1984 | EP0127504A1 Metallurgical melting process, and direct current arc furnace therefor |
| 11/28/1984 | EP0126328A2 Arc smelt furnace charging process and device for carrying it out |
| 11/27/1984 | US4485476 Apparatus and process for preparing high temperature reaction products |
| 11/27/1984 | US4484947 Method for melting a charge of bulk solid metal |
| 11/27/1984 | US4484730 Device for leaching copper from slags |
| 11/20/1984 | EP0112393A4 Oxygen-fuel burner with lancing capability and method of producing steel. |
| 11/20/1984 | CA1178022A1 Silicon carbide production and furnace |
| 11/14/1984 | EP0125200A1 Furnace vessel for a direct current arc furnace |
| 11/13/1984 | CA1177644A1 Pyrometallurgical furnace installation, more particularly for the melting of ore-concentrate and the after treatment of the melt |
| 10/31/1984 | EP0123168A1 Process and device for furnace cooling |
| 10/30/1984 | US4479778 Construction of regenerator furnaces |
| 10/24/1984 | EP0122875A1 Electrode of an electric arc furnace |
| 10/23/1984 | CA1176675A1 Furnace constructed with sectional removable refractory lining |
| 10/23/1984 | CA1176435A1 Process and apparatus for collection of gases and particulates in a furnace feed system |
| 10/17/1984 | EP0122120A2 Improvements in or relating to electric arc furnaces |
| 10/10/1984 | EP0121393A1 Method for quantitative discharge of molten material |
| 10/09/1984 | CA1175874A1 Plasma melting furnace |
| 10/03/1984 | EP0120684A1 Improvements in melting scrap metal and ingestion of solids in molten metal |
| 09/26/1984 | EP0119676A1 Refractory, heat-insulating articles |
| 09/25/1984 | US4473350 Oxy-fuel burner |
| 09/25/1984 | CA1175087A1 Cooling pipe structure for arc furnace |
| 09/18/1984 | CA1174471A1 Regenerator flow distribution by means of a burner |
| 09/12/1984 | EP0118412A2 Method of carrying out melting, melt-metallurgical and/or reduction-metallurgical processes in a plasma melting furnace as well as an arrangement for carrying out the method |
| 09/12/1984 | EP0117928A1 Process for production of steel by the melt-down of iron-sponge in an electric-arc-furnace |
| 09/11/1984 | CA1174261A1 Atmosphere controlled electric melting |
| 09/04/1984 | US4469312 Melting furnace of a rigid structure |
| 09/04/1984 | CA1173880A1 Continuously fed scrap metal smelter |
| 08/30/1984 | WO1984003352A1 Furnace for melting metals |
| 08/29/1984 | EP0116696A1 Smelting furnace container |
| 08/28/1984 | US4468782 Method and device for operating a DC arc furnace |
| 08/28/1984 | US4468781 Tiltable arc furnace |
| 08/28/1984 | US4468780 Method of lining a steel-making furnace |
| 08/28/1984 | US4468008 Feeder apparatus for melting furnaces, particularly for plasma melting furnaces |
| 08/22/1984 | EP0116405A1 Steel production using channel induction furnace |
| 08/14/1984 | US4466104 Metallurgical plant |
| 08/08/1984 | EP0115369A1 A furnace for melting metals |
| 08/08/1984 | EP0115260A2 A method and apparatus for drying and/or pre-heating lump material, for example scrap metal |
| 08/07/1984 | US4464764 Device for moving solid material fed onto the surface of a melt and for breaking a slag crust formed on the surface of the melt or inside the charge |
| 08/07/1984 | CA1172035A1 Device for combined smelting and holding furnace |
| 07/31/1984 | CA1171897A1 Means for transporting/rotating the pot of a smelting furnace |
| 07/31/1984 | CA1171660A1 Regenerator flow distribution by means of air jets |
| 07/25/1984 | EP0114070A2 Burner or tuyere and its use in a metallurgical furnace and its arrangement in the wall of such a furnace |
| 07/24/1984 | CA1171285A1 Heat recovery and melting system for scrap metals |
| 07/17/1984 | CA1171124A1 Vessel for a metal-melting furnace |
| 07/04/1984 | EP0112393A1 Oxygen-fuel burner with lancing capability and method of producing steel |
| 07/03/1984 | US4458351 Membrane cooling system for metallurgical furnace |
| 07/03/1984 | US4457494 Metal melting furnace |
| 07/03/1984 | US4457459 Valve suitable for controlling teeming from furnace tapholes |
| 06/26/1984 | CA1169901A1 Waste gas apparatus for electric furnace |
| 06/26/1984 | CA1169663A1 Recovery of heavy metals from spent alumina |
| 06/19/1984 | US4455660 Inclined arrangement of the support surfaces of a furnace body and furnace lid for electric arc furnaces |
| 06/19/1984 | US4455017 Forced cooling panel for lining a metallurgical furnace |
| 06/05/1984 | CA1168683A1 Plasma melting furnace |
| 05/30/1984 | EP0109839A2 Method of making graphite electrodes |
| 05/29/1984 | US4451925 Charging system for electric arc furnaces |
| 05/29/1984 | CA1168039A1 Method of mixing a hot furnace gas with another gas before the removal of the furnace gas from the furnace, and a hood intended for this purpose |
| 05/22/1984 | USRE31589 Linings or coverings of refractory fibrous aluminum silicate mat, fillers, solid fuels, oxidizers and binders |
| 05/22/1984 | US4450003 Suctioning of carbon monoxide through apertures positioned above the sintering zone |
| 05/02/1984 | EP0107244A1 Furnace heated by means of a regenerator |
| 04/24/1984 | US4445220 Cover for casting ladle |
| 04/24/1984 | US4444378 Apparatus for separating slag from a molten metal |
| 04/24/1984 | US4444128 Heat generator |
| 04/18/1984 | EP0105866A1 Plasma melting furnace |
| 04/17/1984 | US4443880 Liquid-cooled cover for arc furnaces |
| 04/17/1984 | US4443879 In an electric smelting furnace |
| 04/17/1984 | US4443878 Method of mixing a hot furnace gas with another gas before the removal of the furnace gas from the furnace and a hood therefore |
| 04/04/1984 | EP0104747A1 Improvements in lancing in electric arc steelmaking |
| 04/03/1984 | US4441191 Apparatus for heating a continuous flow of molten metal |
| 03/27/1984 | US4439145 Aluminum furnace and preheater therefor |
| 03/21/1984 | EP0103545A2 Electrode for arc furnaces |
| 03/21/1984 | EP0103534A2 Crucible furnace |