Did You Know...
...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.
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| Number | Title | Issue Date |
| 8029594 | Method and device for introducing dust into a metal melt of a pyrometallurgical installation A method for introducing dust into a molten bath of a pyrometallurgical installation is described. According to the method, a carrier gas containing dust particles is guided through a heating zone of an electrode less plasma torch, the gas being converted to a plasm... | 10/04/2011 |
| 7413590 | Use of an induction furnace for the production of iron from ore A method of using an induction furnace to process iron ore into an iron product such as pig iron in which iron ore is the main or exclusive source of iron fed into the induction furnace. ... | 08/19/2008 |
| 7070743 | Induction-heated reactors for gas phase catalyzed reactions Elevated temperature, gas-phase, catalyzed processes for preparing HCN in which induction heating is used as a source of energy, and novel apparatus for carrying out said processes. ... | 07/04/2006 |
| 6648942 | Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus The invention is a method and apparatus for iron-making/steel-making using a modified rotary hearth furnace, that is a finisher-hearth-melter (FHM) furnace. In the method the refractory surface of the hearth is coated with carbonaceous hearth conditioners... | 11/18/2003 |
| 6616724 | Method and apparatus for evaporating components of multiple substance mixtures and multiple substance systems For the evaporation of given components from initial multiple-substance mixtures and systems at subatmospheric pressure, individual portions (P1, P2, P3, P4, P5) of the multiple-substance mixture and systems are placed in ring crucibles (17) stacked at se... | 09/09/2003 |
| 6537342 | Induction furnace for a metal reduction and melting process Apparatus for a metal reduction and melting process, in which a metal and carbon-containing burden is heated in an induction furnace including a heating vessel in which the burden can float in at least one heap on a liquid metal bath in the vessel, is cha... | 03/25/2003 |
| 6409790 | Method and apparatus for practicing carbonaceous-based metallurgy An energy efficient, coal-based method and apparatus that are environmentally friendly which produce under pressure metallized/carbon product and molten metal directly from abundant coal or other carbonaceous material, and low cost fines (or ore concentra... | 06/25/2002 |
| 6241797 | Process for reducing oxidic slags There is disclosed a process for reducing oxidic slags or combustion residues above a metal bath. The metal bath is formed of an iron alloy containing metals nobler than iron and whose redox potential is adjusted such FeO is reduced to Fe not at all or on... | 06/05/2001 |
| 6221123 | Process and apparatus for melting metal An apparatus and a method for melting solid metals, including iron, are provided. The apparatus includes a vertical shaft furnace through which the metal is fed. The shaft furnace is mounted on a horizontal induction furnace containing a molten pool of me... | 04/24/2001 |
| 6206948 | Metal reduction and melting process and apparatus A metal reduction and melting process which involves the heating of a burden comprising a metal containing component and a carbon containing component in a channel type induction furnace in order to reduce such metal containing component, in which at leas... | 03/27/2001 |
| 6146437 | Metal containing compound reduction and melting process The present invention provides a metal containing compound reduction and melting process which entails feeding a burden made of a mixture of the metal containing compound and a suitable reductant in particulate form into an electrically heatable vessel wh... | 11/14/2000 |
| 6136059 | Process for reducing the electric steelworks dusts and facility for implementing it A process for processing electric steelworks dusts containing oxidized high-iron, zinc-bearing materials in order to recover iron and zinc from [them] said dusts. The process includes the steps of: feeding the dusts to an induction furnace partially fille... | 10/24/2000 |
| 6096109 | Chemical component recovery from ligated-metals A method for converting a ligated-metal into chemical components of the ligated-metal includes forming an ionized zone that can convert the ligated-metal to a reduced ligated-metal intermediate. The ligated-metal is directed into the ionized zone, whereby... | 08/01/2000 |
| 6007597 | Electron-beam melt refining of ferroniobium Niobium, Nb, is refined from FeNb by electron beam melt refining. The amount of the impurities in the FeNb which form suboxides with oxygen is optionally determined. Sufficient oxygen is added to form oxides with these impurities. The electron beam melt r... | 12/28/1999 |
| 6001148 | Process for obtaining metal from metal oxide A process for producing metals in the reduced state from their oxides using a simple and less expensive facility with lower running cost. A metal oxide in the form of particles is supplied into a high temperature flame from an oxygen burner in a reactor f... | 12/14/1999 |
| 5753004 | Method for refining molten metal and apparatus for same A method of refining molten metal includes the steps of reduced-pressure-refining molten metal in a heated vessel, adding slag-forming agents into the refined molten metal while keeping the molten metal in the vessel, or after pouring the molten metal int... | 05/19/1998 |
| 5547487 | Amorphous metal alloy and method of producing same A process is described for producing amorphous metal alloys wherein impure ferrophosphorus slag, a by-product from a phosphorus-producing electric furnace, is used to supply phosphorus, chromium, vanadium and iron values to such alloys by mixing it with i... | 08/20/1996 |
| 5518518 | Amorphous metal alloy and method of producing same A process is described for producing amorphous metal alloys wherein impure ferrophosphorus slag, a by-product from a phosphorus-producing electric furnace, is used to supply phosphorus, chromium, vanadium and iron values to such alloys by treating the fer... | 05/21/1996 |
| 5490869 | Process and device for treating pollutant, fusible materials The invention relates to a process and device for treating pollutant fusible materials which are conductors of electricity in the molten state. The process consists in introducing the waste into an induction furnace (11, 40) comprising an inductor circuit... | 02/13/1996 |
| 5346528 | Continuous automatic steel making method and facility The present invention provides a continuous automatic steel making method and a facility which make it possible to make steel continuously and automatically by systematizing all steps of the steel making process. Steel is tapped from an electric furnace w... | 09/13/1994 |
| 5322543 | Simplified method for producing ductile iron A method for producing ductile iron in a single reactor without the utilization of further processor like converters, tundishes, plunging etc. is disclosed. The method is applied in a modified induction furnace with a removable bottom injection device sta... | 06/21/1994 |
| 5280496 | Induction furnace with cooled crucible An induction furnace includes a crucible having a plurality of cooled metallic segments (6A, 6B) electrically insulated from each other and an electromagnetic induction coil (5) arranged around the crucible, wherein the electromagnetic induction coil is e... | 01/18/1994 |
| 5160531 | Vaccum refining method utilizing induction heater around a ladle in a vacuum container A vacuum refining method for refining a mass of molten metal which is obtained from a steel-making furnace or a steel-making secondary smelting furnace, which method includes the steps of: pouring the molten metal into a ladle; setting the ladle inside an... | 11/03/1992 |
| 5139567 | Process for recovering valuable metals from a dust containing zinc There is disclosed a process for recovering valuable metals from a dust containing zinc comprising mixing the dust containing zinc with a reductant and a flux for regulating the basicity of slag, forming the mixture into pellets with a pelletizer, chargin... | 08/18/1992 |
| 5090022 | Cold crucible induction furnace A coreless induction furnace comprising a crucible for holding a quantity of metal to be heated by the furnace. The crucible has an open top, side walls and a closed bottom. An induction coil is operatively associated with the crucible for generating a ti... | 02/18/1992 |
| 5084089 | Method for in-line induction heating of molten metals for supplying continuous casting devices The present invention provides a method and apparatus for in-line heating of molten metals for supplying continuous casting devices, particularly for use in the continuous casting of non-ferrous metals.... | 01/28/1992 |
| 5021084 | Process for improving high-temperature alloys This invention is the electron beam evaporation and deposition(EBED) process which produces high purity and ultrafine grain size in high-temperature and reactive metal alloys. These properties are important in metals used in aircraft gas turbine component... | 06/04/1991 |
| 4851039 | Process for the production of pig iron using cyclone A process for the production of pig iron from fine ore is described, in which initially the fine ore undergoes prereduction to a degree of metallization of preferably 65 to 75%. The sponge iron obtained is then melted down and under goes a final reduction... | 07/25/1989 |
| 4836273 | Micro mill continuous steel process A method of refining steel utilizing induction melting furnaces sized for use in micro mills consists of charging a medium frequency induction melting furnace having a maximum production rate of about 50 tons per hour with pre-refined steel, and melting s... | 06/06/1989 |
| 4808219 | Method for treating metal melts and apparatus for carrying out the method A treatment of metal melts comprising the addition of chemically active substances or alloying elements with subsequent mixing taking place as a result of electromagnetic force exerted on the metal melt. The melt, which fills a substantially cylindrical v... | 02/28/1989 |
| 4775521 | Process for the production of ferrous sulphide Ferrous sulphide is produced by forming a melt of a source of sulphur, suitably flotation grade iron pyrites, and a source of iron, suitably steel, in an electric induction furnace until reaction has ocurred, allowing a slag to form and removing the slag ... | 10/04/1988 |
| 4762554 | Process to eliminate hazardous components from the electric arc furnace flue dust and recovering of metals A method and apparatus for the pyrometallurgical treatment of the environmentally hazardous steel mill flue dust or similar materials recovering the volatile metals from such materials in reduced form and converting the remaining iron into steel and slag.... | 08/09/1988 |
| 4752327 | Dephosphorization process for manganese alloys A method for dephosphorizing a manganese alloy by first desiliconizing the alloy to a level below 0.6%, and then dephosphorizing the low silicon alloy with barium carbonate or barium oxide in combination with an oxidizing agent. The lower the silicon cont... | 06/21/1988 |
| 4675048 | Electrothermal process and plant for the separation and refining of metal from waste The invention relates to an electrothermal process of separation and refining of metals from recovery materials containing a distillable metal, characterized by the fact that it consists: on the one hand, in a melting stage where the process materials are plac... | 06/23/1987 |
| 4612041 | Process for recovering valuable metals from an iron dust containing a higher content of zinc A process for recovering valuable metals from an iron dust with a high concentration of zinc comprising (1) pelletizing said dust into a pellet in a pelletizer, (2) preheating the resulting pellets by charging a hot gas to remove water, the loss on igniti... | 09/16/1986 |
| 4589916 | Ultra clean stainless steel for extremely fine wire An ultra clean stainless steel which allows wire drawing of extremely fine wire with a diameter of 30 micron or less is disclosed. This steel contains 0.006% or less of Al, 10 ppm or less of O, with an inclusion particle size of less than 10 micron. This ... | 05/20/1986 |
| 4582531 | Method of heating a molten steel in a tundish for a continuous casting apparatus A method of heating a molten steel in a tundish for a continuous casting apparatus while the molten steel being introduced and circulated in a roundabout channel of a horizontal channel type induction heater attached to the side wall of the tundish. This ... | 04/15/1986 |
| 4494984 | Method for direct reduction of iron oxide utilizing induction heating A method of reducing iron oxide by induction heating. The method involves the following steps: (a) charging iron oxide and a carbonaceous material into the inlet end of a plurality of compartments whose walls comprise a material which is adaptable to bein... | 01/22/1985 |
| 4464197 | Method for making iron by induction heating An improved method and apparatus for making metallic iron from iron ore including low-grade ore by the use of a solid reductant such as coal in a completely enclosed system wherein the heat for reduction originates from induction coils surrounding a verti... | 08/07/1984 |
| 4436551 | Process for making steel from direct-reduced iron In a steelmaking process wherein direct-reduced iron is manufactured in a reducing furnace and smelted in an electric furnace or a converter, a method is disclosed in which a heating furnace is provided at the lower end of a hood connected so as to enclos... | 03/13/1984 |
