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| Number | Title | Issue Date |
| 5968457 | Apparatus for producing heat treatment atmospheres An endogenerator is provided in which CO and H2 are generated as primary products of hydrocarbon oxidation. The reactor is a compact reactor and operates autothermally without auxiliary heating means.... | 10/19/1999 |
| 5878699 | Process furnace A twin-cell furnace for process stream preheat and utility steam superheat. The furnace uses a pair of vertical radiant cells with top supported, bottom guided, single row, multiple pass vertical coils fired on opposite sides by floor-mounted burners. An ... | 03/09/1999 |
| 5535990 | Apparatus for annealing/magnetic annealing amorphous metal in a fluidized bed An apparatus for magnetic annealing of amorphous metal alloy cores. The apparatus includes a fluidized bed for heating the core, a conveyor for transporting the core and immersing the core in the fluidized bed and at least one winding for applying a magne... | 07/16/1996 |
| 5405122 | Apparatus for annealing/magnetic annealing amorphous metal in a fluidized bed A method of heat treating an amorphous metal alloy by immersing the alloy in a fluidized bed to heat the alloy to a temperature below its recrystallization temperature. The alloy is maintained in the fluidized bed for a time sufficient to reduce internal ... | 04/11/1995 |
| 5358223 | Hot-blast main for hot-blast stove system of a blast furnace A hot-blast main for a hot-blast stove system of a blast furnace has a refractory structure comprising a plurality of courses of refractory bricks. At least a first one of the courses has at least one part thereof comprised of a plurality of expansion-joi... | 10/25/1994 |
| 4981285 | Gas-fired steelmelting apparatus Process and apparatus for the rapid efficient melting of solid ferrous metal scrap without direct exposure to water vapor, carbon dioxide, oxygen or oxygen-containing gases, using natural gas and/or other caloric gaseous fuels. The apparatus includes a fu... | 01/01/1991 |
| 4775392 | Coal gasification installation The installation comprises mainly a reactor (1) for the gasification of powdered coal on a bath (2) of liquid iron, a cooling flue (9) constituting a boiler connecting the outlet of the reactor (1) to a vapor superheater (11) fed with vapor (26) issuing f... | 10/04/1988 |
| 4659375 | Method of heating, melting and coal conversion A method of heating gases for combustion, operating turbines, and heating of a material and the like comprises the steps of providing a melt deposited in a vessel including two vessel elements and selected from the group consisting of a metal, a slag whic... | 04/21/1987 |
| 4561886 | Method of heating, melting and coal conversion and apparatus for the same A method of and an apparatus for heating, melting and production of gaseous fuel include supplying air, coal, steam into a melt. The melt contains elements readily oxidized by air. These elements produce oxides readily reduced by carbon. The overall resul... | 12/31/1985 |
| 4363656 | Injection of hot gases into shaft furnace A tuyere for injecting hot reducing gases into a furnace is provided with an inlet pipe and a plasma oven whose gas outlet axis is inclined to the longitudinal axis of the tuyere. The angles which the outlet axis of the plasma oven and the inlet pipe form... | 12/14/1982 |
| 4309024 | Cupola with auxiliary gas generator A cupola for the melting of metal is provided with an auxiliary gas generator which supplies through the forehearth hot carbon monoxide rich gas to the bottom of the cupola as a source of heat. The heat of the gases maintains the cupola hearth and forehea... | 01/05/1982 |
| 4165865 | Crucible melting furnace A crucible furnace for high-temperature melting of metals or other materials which includes a capped vessel for serving as a crucible to hold a charge of material to be melted, a solid baffle surrounding and closely spaced from the vessel to form a restri... | 08/28/1979 |
| 4132394 | Furnaces A fuel-fired furnace for melting metal in a more efficient manner, the furnace having a burner with its combustion air being preheated by passage through an air chamber between spaced inner and outer walls of the furnace jacket and by passage through a he... | 01/02/1979 |
| 4090870 | Continuous smelting and refining of cement copper Use of a shaft kiln in continuous smelting and refining of cement copper is made possible with a mix preheater, a refined gas preheater, an air preheater, an air mix feeder and forehearths for cement oxidation and reduction, and wherein oxidation is achie... | 05/23/1978 |
| 4065111 | Cover for the ignition carriage in a sintering plant A cover for the ignition frame of a sintering apparatus is disclosed wherein the cover includes an enclosed space through which combustion air for the substantially horizontally disposed burners of the sintering apparatus is conducted. Combustion air deli... | 12/27/1977 |
| 4056262 | Cupola furnace to enable continuous smelting and refining of cement copper and method therefor Use of a shaft kiln in continuous smelting and refining of cement copper is made possible with a mix preheater, a refined gas preheater, an air preheater, an air mix feeder and forehearths for cement oxidation and reduction, and wherein oxidation is achie... | 11/01/1977 |
| 4055334 | Recycle burner system A reverberatory furnace which has an external passage for recycling hot exhaust gases from the furnace chamber back to the main burner port, means for introducing additional air or oxygen into the recycling passage, and a main burner which supplies fuel p... | 10/25/1977 |
| 3970290 | Arrangement for feeding A method of increasing the blast temperature in a shaft furnace, characterized in that the blast gas entirely or partially is passed through a plasma.... | 07/20/1976 |
