| Patents for H05B 7 - Heating by electric discharge (3,980) |
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| 03/21/1978 | US4080509 Arc furnace, melting, smelting, alloying, silicon, beryllium, copper, carbides |
| 03/21/1978 | US4080508 From silica and coke, arc furnace |
| 03/14/1978 | US4079185 Direct current arcing electrodes |
| 03/07/1978 | US4077357 Apparatus for the application of a protective coating to a graphite electrode |
| 02/07/1978 | US4072599 Carbon electrodes having stabilized binders derived from the entire organic fraction of bituminous coal |
| 01/31/1978 | US4071687 Electric arc furnace for continuous melting of directly reduced iron or directly reduced iron ore |
| 01/24/1978 | US4070228 Coating carbon electrodes |
| 12/20/1977 | US4063931 Refractory coating, corrosion resistance |
| 12/06/1977 | US4061871 Electron gun for heating, melting and vaporizing purposes, with deflection systems |
| 11/15/1977 | US4058699 Radiant zone heating apparatus and method |
| 11/01/1977 | US4056704 Process and apparatus for heating gases |
| 10/25/1977 | US4055722 Electrode holder |
| 09/20/1977 | US4049900 Continuous graphitizing furnace with a vertical displacement of the charge |
| 09/13/1977 | US4048436 Heat treating |
| 08/30/1977 | US4045707 System for the power control of high voltage electron beam generators |
| 08/23/1977 | US4044199 Apparatus for applying torque to electrodes |
| 08/16/1977 | US4042802 Three-phase arc heater |
| 08/02/1977 | US4039738 Device for charging an electric arc furnace through its inner electrode pipe and permitting connection of additional lengths of pipes thereto |
| 07/26/1977 | US4038512 Self-stabilizing arc heater |
| 07/26/1977 | US4038483 Means for direct current arc furnaces |
| 07/19/1977 | US4037043 Extended arc furnace and process for melting particulate charge therein |
| 07/05/1977 | US4034146 Method and apparatus for equalizing the wall lining wear in three phase alternating current electric arc furnaces |
| 06/21/1977 | US4031308 Direct current arc furnace hearth connection installation |
| 06/14/1977 | US4030018 Power converter system |
| 06/14/1977 | US4029888 Arc furnace control system |
| 05/31/1977 | US4027092 Electrode holder of a multielectrode furnace |
| 05/24/1977 | US4025414 Device for clamping a body against downward movement |
| 05/17/1977 | US4024337 DC arc furnace and starting electrode construction |
| 04/19/1977 | US4018975 Suspension means for electric furnace transformer secondary buses |
| 04/19/1977 | US4018974 Direct current arc furnace |
| 04/19/1977 | US4018973 Furnace construction for plasma arc remelting of metal |
| 04/12/1977 | US4017672 Plasma-arc furnace for remelting metals and alloys |
| 04/05/1977 | US4016355 Device in direct current arc furnaces |
| 03/29/1977 | US4015069 Apparatus for extracting metals from ore |
| 03/29/1977 | US4014102 Method of and an apparatus for measuring the electrode length in an electric furnace |
| 03/22/1977 | US4013867 Polyphase arc heater system |
| 03/01/1977 | US4010313 Device for effecting a gastight closure |
| 03/01/1977 | US4010090 Process for converting naturally occurring hydrocarbon fuels into gaseous products by an arc heater |
| 02/08/1977 | US4007324 Graphite, coal tar pitch |
| 02/01/1977 | US4006284 Extended arc furnace and process for melting particulate charge therein |
| 01/18/1977 | US4004076 Nonconsumable electrode for melting metals and alloys |
| 01/11/1977 | US4002942 Process for joining electrodes and product resulting therefrom |
| 01/11/1977 | US4002816 Device for measuring mass of consumable electrodes being remelted in electric furnaces |
| 01/04/1977 | US4001461 Method of producing electrode units for plasmatrons |
| 12/28/1976 | US4000361 Electroslag remelting furnace with relative displacement of a mould and an ingot being cast |
| 12/28/1976 | US4000026 Method and cement for bonding carbon articles |
| 12/28/1976 | US3999976 Preserving inner walls of the furnace |
| 12/21/1976 | US3999000 Self-commutating DC arc furnace having starting electrode and method of its operation |
| 12/14/1976 | US3997712 Electric arc furnace |
| 11/30/1976 | US3994660 Molding machine |
| 11/16/1976 | US3992564 Electroslag remelting plant |
| 11/02/1976 | US3989512 Plasma heat treatment means and method |
| 10/26/1976 | US3988565 Nuclear reactor fuel rod thermal simulator |
| 10/26/1976 | US3988525 Direct current arc furnace with charging means |
| 10/12/1976 | US3985945 Direct-current arc furnace |
| 10/05/1976 | US3984617 Electric arc furnace |
| 10/05/1976 | US3984612 Method and apparatus for protection of metal heating electrodes of melting furnaces by DC current |
| 09/28/1976 | US3983310 Connection between a socket and a liquid cooled cable |
| 09/14/1976 | US3980802 Method of arc control in plasma arc furnace torches |
| 09/14/1976 | US3980467 Method of operating a batch type annealing furnace using a plasma heat source |
| 08/24/1976 | US3976496 Lignin sulfonate, thermoplastic |
| 08/17/1976 | US3975578 Indirect arc metal melting furnace method |
| 08/10/1976 | US3974436 Circuit arrangement for an electric melting furnace |
| 08/10/1976 | US3974398 Wire and steel tube as AC cable |
| 08/03/1976 | US3973075 High temperature furnace |
| 06/22/1976 | US3964924 Protective coating for graphite electrodes |
| 05/11/1976 | US3956611 High pressure radiant energy image furnace |
| 05/11/1976 | US3956572 Cooling means for electric arc furnaces |
| 04/27/1976 | US3953705 Controlled arc gas heater |
| 04/20/1976 | US3952138 Power control system for electric arc or refining furnace electrically directly coupled to independent power generating unit or units |
| 04/13/1976 | US3950601 Electric furnace |
| 04/06/1976 | US3949151 Arc furnaces |
| 02/24/1976 | US3940552 Water-cooled panel for arc furnace |
| 02/17/1976 | US3939028 Protection of carbon articles |
| 02/10/1976 | US3937869 Force sensing control apparatus and method for electric arc furnaces |
| 02/10/1976 | US3937867 Coupler for electric furnace electrodes |
| 02/10/1976 | US3937866 Process of striking an arc for a plasma beam inside an enclosure and a stick-electrode for carrying out the process |
| 02/03/1976 | US3936586 Arc furnaces and to methods of treating materials in such furnaces |
| 01/27/1976 | US3935371 Plasma heated batch-type annealing furnace |
| 01/13/1976 | US3932171 Process for high temperature treatment of materials |