Patents for F27D 11 - Arrangement of elements for electric heating in or on furnaces (4,538)
06/1979
06/12/1979CA1056427A1 Electroslag melting of shaped castings
06/05/1979US4157001 Furnace linings
06/05/1979CA1055694A1 Cylindrical elongated furnace for heat treating material
05/1979
05/29/1979CA1055553A1 Extended arc furnace and process for melting particulate charge therein
05/15/1979US4154975 Method and apparatus for supporting electric heating elements in a furnace insulated with ceramic fiber
05/01/1979US4152572 Method of applying electrodes to high temperature heating elements for use in resistance furnaces
04/1979
04/17/1979CA1052875A1 Series reactor
04/10/1979US4149024 Arc furnace for reducing metal oxides and method for operating such a furnace
04/03/1979US4147888 Electric heating element for electric resistance furnaces
03/1979
03/27/1979CA1051492A1 Electro slag furnace removal of hydrogen and oxygen
03/20/1979US4145562 Uniform electric conductivity
03/20/1979US4145403 Arc heater method for producing metal oxides
03/20/1979CA1051075A1 Stoking device for rotatable furnace pot
03/20/1979CA1051074A1 Rotatable furnace pot for smelting furnaces
03/06/1979CA1050091A1 Force sensing control apparatus and method for electric arc furnaces
02/1979
02/27/1979US4142063 High-frequency electric furnace
02/27/1979US4142062 Material heating furnace and heating element
02/27/1979CA1049268A1 Leech alloying
02/06/1979CA1048092A1 Outdoor mound furnace
01/1979
01/30/1979US4137422 Airtight metal melting furnace
01/16/1979US4135053 Heating assembly for a heat treating furnace
01/16/1979US4135052 Dc arc furnace arc control
01/02/1979CA1045666A1 Electric resistance furnaces for high temperature heating
12/1978
12/12/1978US4129742 Plasma arc vertical shaft furnace
11/1978
11/28/1978US4127737 Apparatus for reactivation of active carbon and the like
11/14/1978CA1042494A1 Apparatus for movement of charge within an electric smelting furnace
10/1978
10/31/1978US4123617 Electric arc furnace
10/31/1978CA1041612A1 Graphite bedding for grounding of ingot molds
10/31/1978CA1041583A1 Electric arc furnaces and refractory shapes therefor
10/24/1978US4121955 Treatment of electrodes
10/17/1978US4121043 Preheating metallurgical enclosures
10/17/1978US4121042 Composite electrode with non-consumable upper section
10/10/1978US4119792 Melting furnace
09/1978
09/26/1978US4117252 High temperature furnace
09/19/1978CA1038937A1 Plasma heat treatment of particulate material
09/19/1978CA1038917A1 Method and device for continuous control and regulation of the thermal parameters in metallurgical ovens
09/12/1978US4113977 Preheating system with gas recirculation
09/12/1978CA1038432A1 Resistance heating mound furnace
08/1978
08/29/1978US4110546 DC arc furnace having a rotating arc
08/22/1978CA1036813A1 Apparatus for the production of metals by a smelting metallurgical process
08/15/1978US4107445 Titanium and zirconium production by arc heater
07/1978
07/25/1978US4103100 Cell adapted for producing high temperatures and high pressures
07/25/1978US4103099 Electric furnaces
07/18/1978US4101724 Furnace conversion method and apparatus
07/11/1978US4100365 Housing for an induction furnace
07/11/1978US4100364 DC Electric arc furnace melt connection
07/04/1978US4099019 Electric furnace waste heat recovery method and apparatus
07/04/1978US4097978 DC Arc furnace hearth electrode installation
06/1978
06/20/1978US4096344 Electric arc furnace control system
06/06/1978US4093816 Furnace heating apparatus
05/1978
05/16/1978US4090054 Electrical preheating apparatus
05/09/1978US4088258 Apparatus and method for vacuum hot press joining, compacting and treating of materials
04/1978
04/04/1978US4082914 Method of stabilizing arc voltage in plasma arc furnace and apparatus for effecting same
04/04/1978US4082544 Electric induction heating of materials of low electrical conductivity
03/1978
03/21/1978US4080511 Direct current electric arc furnace
03/21/1978US4079920 Metal-melting furnace
03/14/1978US4079185 Direct current arcing electrodes
02/1978
02/07/1978US4072814 Furnace for melting metal by the Joule effect
01/1978
01/31/1978US4071687 Electric arc furnace for continuous melting of directly reduced iron or directly reduced iron ore
12/1977
12/27/1977US4065634 Skull furnace for melting highly reactive metals under vacuum or neutral atmosphere
12/06/1977US4061493 Method for removing undesired elements, particularly H2 and O2, in electroslag remelting and an arrangement for carrying out the method
11/1977
11/29/1977US4060692 Induction melting furnace
11/29/1977US4060381 Shield for pyrometric cones used in ceramic firing kilns
11/08/1977US4057438 Glassware, metal parts
11/01/1977US4056601 Process for the production of yellow phosphorus
09/1977
09/20/1977US4049901 Electroslag furnace
09/13/1977US4047555 Method of and apparatus for positioning consumable electrodes in an electroslag remelting bath
08/1977
08/23/1977US4044199 Apparatus for applying torque to electrodes
08/09/1977US4041236 Furnace having ceramic heating elements
08/09/1977US4040610 Apparatus for refining molten metal
07/1977
07/26/1977US4038483 Means for direct current arc furnaces
07/26/1977US4038201 Polycrystalline bodies and means for producing them
07/19/1977US4037044 Power control system for single phase induction melting or heating furnace
07/19/1977US4037043 Extended arc furnace and process for melting particulate charge therein
07/05/1977US4034146 Method and apparatus for equalizing the wall lining wear in three phase alternating current electric arc furnaces
06/1977
06/28/1977US4032705 Consumable electrode furnace crucibles
06/21/1977US4031308 Direct current arc furnace hearth connection installation
05/1977
05/17/1977US4024338 High temperature heat insulation
05/17/1977US4024337 DC arc furnace and starting electrode construction
05/10/1977US4022446 Quenching in hot gas isostatic pressure furnace
05/10/1977US4022264 Electroslag refining
05/03/1977US4021602 Channel furnace for melting metals and alloys with a single inductor coil assuring the heating and forced circulation of the molten metal
04/1977
04/26/1977US4020273 Vertical pyrolysis furnace for use in the production of carbon fibers
04/19/1977US4018974 Direct current arc furnace
04/19/1977US4018973 Furnace construction for plasma arc remelting of metal
04/12/1977US4017673 Method and apparatus for graphitization of carbon materials
04/05/1977US4016355 Device in direct current arc furnaces
03/1977
03/29/1977US4015068 Graphitization furnace
02/1977
02/08/1977US4007369 Tubular oven
02/08/1977US4007325 Furnace assembly
02/01/1977US4006284 Extended arc furnace and process for melting particulate charge therein
01/1977
01/25/1977US4004844 Electrical connector
01/11/1977US4002466 Method of reducing ores
12/1976
12/28/1976US4000361 Electroslag remelting furnace with relative displacement of a mould and an ingot being cast
12/14/1976US3997712 Electric arc furnace
12/14/1976US3997711 Reduction furnace control
12/07/1976US3996412 Aluminum melting furnace
11/1976
11/30/1976US3995101 Cylindrical elongated furnace for treating material at high temperature in a gaseous atmosphere under high pressure
11/23/1976US3993433 Cylindrical elongated furnace for treating material at high temperature in a gaseous atmosphere under high pressure
11/02/1976US3990074 Kiln alarm activated by kiln shutoff
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