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 |
| 7402275 | Powder body melting burner A powder body melting burner which injects a powder body, fuel and oxygen into a furnace individually from a burner head and melts the powder body in flames in which the fuel is burned under oxygen support. The burner includes a single powder body injection hole pro... | 07/22/2008 |
| 7384594 | Method for the pyrometallurgical treatment of metals, metal melts and/or slags and injection device In the metallurgical treatment of metals, metal melts and/or slags in a metallurgical unit or melting vessel, especially in electric arc furnaces, injection devices (1) are used for blowing in or up oxygen-rich gases (6) and/or carbonaceous substances,... | 06/10/2008 |
| 7364690 | Device for injecting a treatment gas into a molten metal The invention relates to a device (8) which is used to inject a treatment gas into a molten metal contained in a tank (1) and which is designed to be fixed in one of the walls of said tank. The inventive device comprises at least one injection nozzle (... | 04/29/2008 |
| 7297180 | Method for operating a vacuum vessel with a coherent jet A method for operating a vacuum vessel with a coherent jet wherein vacuum conditions are established within the vessel and an anchored or attached flame envelope resulting from subsonic velocity fuel and oxidant is provided around at least one supersonic gas stream.... | 11/20/2007 |
| 7273510 | Arrangement and method for tapping a molten phase from a smelting furnace The invention relates to an arrangement (1, 12, 16) for continuously tapping a molten phase, such as matte, from a smelting furnace, such as a flash smelting furnace, said arrangement comprising a matte tapping hole (5) provided in the furnace wall for... | 09/25/2007 |
| 7238118 | Foldable golf swing training aid for use by a right-handed golfer and a left-handed golfer A foldable golf swing training aid for use by a right-handed golfer and a left-handed golfer. A base receives a golf tee and includes a pair of members pivotally attached to each other so as to allow the base to be foldable. A pair of arms are pivotally attached to ... | 07/03/2007 |
| 7172413 | Laundry dryer having gas combustion apparatus A gas combustion apparatus of a laundry dryer is provided, by which an initial ignition power is improved to enhance an ignition property. The gas combustion apparatus includes a gas supply; a mixing pipe, having a mixing passage extending from an inlet end to an ou... | 02/06/2007 |
| 7024750 | Method for the manufacture of layered metal product slabs and layered metal product slabs A method for the production of a layered metal slab by casting, which strip contains a central layer (2) and surface layers (3) on either side of it. The central layer (2) is introduced as a strip through a mould (4), into which is introd... | 04/11/2006 |
| 6875398 | Coherent jet system with outwardly angled flame envelope ports A coherent jet lance and operating method employing two sets of ports for delivering fuel and oxidant respectively for formation of a flame envelope around one or more gas jets wherein the ports of at least one set and preferably of each set are angled outwardly on ... | 04/05/2005 |
| 6805831 | Mechanical waves generator system in a converter or pyrometallurgical furnace A system for generating mechanical waves for use in smelting and conversion processes that occur in furnaces and converters for a higher production of refined metals, consisting in a electrical signal generator, transducers that convert said electrical signals in me... | 10/19/2004 |
| 6802887 | Method and device for feeding a gas to a metallurgical vessel A method is for feeding a gas into a metallurgical vessel having a condensable and/or evaporable component entrained by the gas. The gas is fed to the metallurgical vessel via one or more gas supply means. According to the method, if there are a number of the gas su... | 10/12/2004 |
| 6790406 | Mechanical waves generator system in a converter or pyrometallurgical furnace A system for generating mechanical waves for use in smelting and conversion processes that occur in furnaces and converters for a higher production of refined metals, consisting in an electrical signal generator, transducers that convert said electrical signals in m... | 09/14/2004 |
| 6787099 | Mechanical waves generator system in a converter or pyrometallurgical furnace A system for generating mechanical waves for use in smelting and conversion processes that occur in furnaces and converters for a higher production of refined metals, consisting in an electrical signal generator, transducers that convert said electrical signals in m... | 09/07/2004 |
| 6749661 | Method for melting and decarburization of iron carbon melts A method and an apparatus for advantageously introducing a flame and a high velocity oxidizing gas into a furnace for metal melting, refining and processing, particularly steel making in an electric arc furnace. The steel making process of an electric arc furnace is... | 06/15/2004 |
| 6709630 | Metallurgical lance and apparatus A metallurgical lance for introducing gas from above into a volume of metal in a vessel includes a head having at least one ejector formed therein. The ejector includes a Laval nozzle surrounded by a shrouding gas passage. Both the Laval nozzle and the shrouding gas... | 03/23/2004 |
| 6565800 | Apparatus for injecting solid particulate material into a vessel An elongate metallurgical lance (27) for injecting solid particulate material into molten material held within a vessel (11) is disclosed. The lance includes a central core tube (31) through which to pass solid particulate material, an annular cooling jac... | 05/20/2003 |
| 6383445 | Supersonic coherent gas jet for providing gas into a liquid A system for establishing and maintaining a supersonic coherent gas jet, effective with either an oxidizing or an inert gas, employing a converging/diverging nozzle for establishment of a non-disruptive initial supersonic velocity, and a slower moving def... | 05/07/2002 |
| 6368550 | Variably insertable combined lance with displaceable burner and blower lance bodies A lance is provided for processing molten metal baths located in metallurgical tanks, and for heating the tanks. A first lance body is displaceable in a second lance body. A mechanism is provided for displacing the first lance body relative to the second ... | 04/09/2002 |
| 6334976 | Fluid cooled coherent jet lance A lance which may be used to generate a longer coherent gas jet having inflowing and outflowing coolant fluid passages which are in flow communication and which straddle the flame envelope fluid passages, all of which are coaxial with the main passageway.... | 01/01/2002 |
| 6319458 | Pulverized coal injecting apparatus A pulverized coal injecting apparatus includes a cylindrical inner pipe for feeding pulverized coal into a tuyere of a blast furnace. A cylindrical outer pipe coaxially surrounds the inner pipe. A spiral swirler is formed on the surface of the inner pipe ... | 11/20/2001 |
| 6245285 | Top injection lance A lance (5) for injecting a feed material, preferably a solid feed material, into a metallurgical vessel, is disclosed. The lance comprises: an inlet (21) for introducing the feed material into the lance; an outlet (23) at a forward end of the lance (5) f... | 06/12/2001 |
| 6221310 | System for extracting sodium metal from sodium hydroxide with methane as a reductant A reactor system that includes a reactor nozzle for use with a reactor vessel and process for its use for producing sodium metal, by a reaction of an alkali hydroxide, preferably sodium hydroxide, as a reactant, with methane gas as a reductant, at high he... | 04/24/2001 |
| 6187258 | Operating method and device for a shaft furnace A method for operating a blast furnace includes feeding metallic charge materials, alloy elements and energy carriers in the upper part of the furnace shaft. An oxidizing agent is fed in the lower part of the shaft. Filler material, namely, alloy elements... | 02/13/2001 |
| 6171544 | Multiple coherent jet lance A system for establishing a plurality of coherent gas jets proximate one another using a single lance wherein plurality of gas jets are ejected from a corresponding plurality of nozzles in a lance and a flame envelope is established around the plurality o... | 01/09/2001 |
| 6079866 | Mixing apparatus for mixing thermosetting and thermoplastic resin blends prior to molding A mixing process apparatus for discharging polymer material into a mold comprising a resin passage having an inlet for receiving polymer material and an outlet for discharge polymer material for molding, a first and second chamber communicates with said p... | 06/27/2000 |
| 6033621 | Oxygen lance head for treating molten masses Disclosed is a lance head for a water-cooled oxygen lance for treating melts, especially for oxygen top-blowing onto steel melts in a converter, with at least one expansion nozzle which widens conically in the direction of the bath surface proceeding from... | 03/07/2000 |
| 5858059 | Method for injecting feed streams into a molten bath First and second feed streams are injected into a molten bath, thereby creating first and second jets. The first and second jets combine to form a substantially planar, or fan jet, region within the molten bath. The first and second feed streams can inclu... | 01/12/1999 |
| 5820816 | Purging device and method of making same A purging device for use in metal processing includes a shell, a body and a plurality of gas delivery tubes. The body comprises a refractory material and the tubes are disposed therein. Each tube has at least two passageways extending therethrough. The bo... | 10/13/1998 |
| 5746804 | Apparatus for melting fine particles containing carbon and method for melting such fine particles using the apparatus An apparatus for and a method of melting fine particles containing carbon, capable of uniformly burning and melting the fine particles throughout the entire zone of the combustion flame. The apparatus includes a triple tube structure including an inner ox... | 05/05/1998 |
| 5522916 | Method and apparatus for injecting liquid oxygen A high-speed jet of liquid oxygen (21) with a speed higher than 100 meters per second is delivered into the tuyeres of a blast furnace of cupola furnace together with pulverised carbon. The jet reaches the opposite wall of the cavity (9) formed at the out... | 06/04/1996 |
| 5465942 | Tuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangement To increase the service life of a tuyere arrangement for the introduction of agents into a molten bath, comprising an apertured block (3) refractory material which can be fitted into the wall (1) of a vessel (12) and which includes a cylindrical body (4) ... | 11/14/1995 |
| 5458320 | Accretion controlling tuyere A tuyere for refining molten metals or melting metal scrap or oxides charged into a vessel. The tuyere comprises three concentric pipes of copper or stainless steel encased in refractory. An annular stream of natural gas surrounds an annular stream of oxy... | 10/17/1995 |
| 5451034 | Device for the injection of pulverized coal into a blast furnace crucible A method and device is provided for the combined injection of pulverized coal and a gaseous oxidant into a crucible of a shaft furnace, especially a blast furnace, through a hot-air blast tuyere. In the region of the nozzle end of the tuyere in the crucib... | 09/19/1995 |
| 5436210 | Method and apparatus for injection of a liquid waste into a molten bath A method and apparatus are disclosed for injecting liquids into a molten bath. The method includes forming a suitable liquid dispersion of a liquid phase disposed in a gas phase. The liquid phase has a ratio of surface area to volume which is sufficient t... | 07/25/1995 |
| 5350439 | Process and apparatus for the replacement of a first flow of gas accompanying a flow of particles with a second flow of gas A first flow of gas (C) accompanying a flow of solid particles (S), is sent at supersonic speed into a first conduit (1) prolonged by a third conduit (8) and intersecting a second conduit (6) supplying a second flow of gas (G) which is deflected into the ... | 09/27/1994 |
| 5328157 | Method and an apparatus for sealing tuyeres in the surrounding refractory lining The invention relates to a method and an apparatus for sealing tuyeres and feed pipes installed in a refractory vessel lining. Seals known per se, in particular prestressable packings, are installed in the gap between the tuyere or feed pipe and the surro... | 07/12/1994 |
| 5217366 | Process for heating a thermic enclosure and burner To heat a thermic enclosure, flames are generated in a burner having a plurality of injectors, from an oxy-combustible mixture, the flames extending in different directions and having different power and/or oxidizing reducing capacity. Application for exa... | 06/08/1993 |
| 5176875 | Tubular water-cooled jacket for furnaces A tubular water-cooled jacket for furnaces is disclosed which includes a tubular member having a plurality of axial apertures and a plurality of transverse apertures. Each transverse aperture is formed therein so as to bring at least two of the axial aper... | 01/05/1993 |
| 5050847 | Staged valve multi-hole injection block and method An injection block of an injection valve intended for bottom injection but optionally operable on the side of a teeming vessel for side injection is disclosed. The invention is directed specifically to a multi-passageway multi-orifice injection block in w... | 09/24/1991 |
| 5037072 | Injection block and method An injection block of an injection valve is disclosed which is normally intended for installation in a metallurgical vessel or holding vessel containing ferrous metal. Other metals can be similarly treated by injection metallurgy, but the maximum utility ... | 08/06/1991 |
