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 |
| 8142539 | Method and arrangement for feeding an anode into a smelting reactor The invention relates to an arrangement for feeding an anode into a metallurgical smelting reactor (2), such as a flash converter, said arrangement including a feeding funnel (7) made of at least one part for feeding at least one anode (4) at a ... | 03/27/2012 |
| 8119063 | Austenitic iron and an iron product High-alloy austenitic stainless steels that are extra resistant to pitting and crevice corrosion in aggressive, chloride-containing solutions have a tendency for macro-segregation of Mo, at solidification of the melt. This problem is solved by a super austenite stai... | 02/21/2012 |
| 7758707 | Martensitic stainless steel and method of the manufacture The invention relates to a martensitic stainless steel to be used for making a razor, surgical and similar blades or other cutting tools, which steel contains 0.40 to 0.55 wt % carbon, 0.8 to 1.5 wt % silicon, 0.7 to 0.85 wt % manganese, 13.0 to 14.0 wt % chromium, ... | 07/20/2010 |
| 7744674 | Method in connection with steel production A method of producing a fluxing agent that can be used in production of steel, preferably stainless steel, employs as a raw material a hydroxide sludge that results from neutralization of metal-contaminated pickling liquid from a pickling step for a steel and contai... | 06/29/2010 |
| 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 |
| 7225863 | Plate-type heat exchanger with anodic corrosion protection To protect a plate-type heat exchanger (1) against corrosion due to the attack of sulfuric acid, it is proposed in accordance with the invention that the region through which flows sulfuric acid has at least one metal cathode (16, 17) and one reference... | 06/05/2007 |
| 7045734 | Spark induction power conditioner for high tension physical separators A D.C. voltage altering device includes at least one spark induction power conditioner including a first electrode connectable to a high voltage D.C. power source and a second electrode spaced from the first electrode and forming a discharging gap therebetween. The ... | 05/16/2006 |
| 7032808 | Thermal spray application of brazing material for manufacture of heat transfer devices The invention relates to a method of manufacturing and coating heat transfer parts for a heat exchanger such as tubes in an automobile radiator. The tubes are coated with brazing material by thermal spraying, such as plasma deposition or wire-arc deposition. The coa... | 04/25/2006 |
| 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 |
| 7004226 | Apparatus for continuous casting of metal strips Apparatus for continuous vertical casting of metal strips, comprising: a mould (10) having top and bottom ends an open-ended mould cavity (C), a tundish (11) having a discharge opening (11A) in direct communication with the mould cavity (C) to f... | 02/28/2006 |
| 6997371 | Thermal spray application of brazing material for manufacture of heat transfer devices The invention relates to a method of manufacturing and coating heat transfer parts for a heat exchanger such as tubes in an automobile radiator. The tubes are coated with brazing material by thermal spraying, such as plasma deposition or wire-arc deposition. The coa... | 02/14/2006 |
| 6997248 | High pressure high temperature charge air cooler A charge air cooler formed of copper or a copper alloy for withstanding high temperatures and high pressures is described. The charge air cooler is made to withstand temperatures over about 300° C. and pressures greater than about 40 bars in one embodiment, and tem... | 02/14/2006 |
| 6953123 | Pre-separation of feed material for hindered-bed separator A pre-separator feed well for use with hydrous slurry feed is provided in a hindered-bed separator that includes an elongate body defining an interior space with upper and lower portions. The feed well is elongate and includes a vertically adjustable conical plate a... | 10/11/2005 |
| 6951992 | Corona and static electrode assembly A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The coro... | 10/04/2005 |
| 6926752 | Method for the stabilization of a fluidized bed in a roasting furnace This invention relates to a method for stabilizing a fluidized bed used in roasting by adjusting the oxygen content of the roasting gas in the bed. The fine-grained material for roasting is fed into the furnace above the fluidized bed and the roasting gas, which cau... | 08/09/2005 |
| 6920773 | Method and apparatus for manufacturing tubes by rolling A method for manufacturing a tube made of a non-ferrous material, particularly a tube made of mainly copper, by rolling, in which method, in the first working step the tube billet is worked by rolling with conical rolls, so that mainly owing to the deformation resis... | 07/26/2005 |
| 6919024 | Press membrane from a rubber-elastic material The invention relates to a press membrane (9) for a filter plate (1′) of a filter press. Said press membrane consists of a rubber-elastic material and is supported by the filter plate (1′) while supporting a parallel filter cloth (14)... | 07/19/2005 |
| 6911176 | Cooling element The invention relates to a cooling element, in particular to be used in connection with furnaces and the like related to metal production processes, said element comprising a housing (1) provided with a channel system (2) for cooling water circulation.... | 06/28/2005 |
| 6892559 | Method and apparatus for manufacturing tubes A method for manufacturing a tube made of a non-ferrous material, particularly a tube made of mainly copper, in which method, in the first working step the tube billet is worked so that mainly owing to the deformation resistance, the temperature of the tube billet u... | 05/17/2005 |
| 6887298 | Method and equipment for smelting non-ferrous metal sulphides in a suspension smelting furnace in order to produce matte of a high non-ferrous metal content and disposable slag The present invention relates to a method and equipment, whereby matte with a high non-ferrous metal content and disposable slag are produced simultaneously in a suspension-smelting furnace from non-ferrous sulphide concentrate. According to the invention, a carbona... | 05/03/2005 |
| 6883598 | Cooling element for a heat exchanger A heat exchanger includes at least two ducts for separating a first heat exchange fluid, inside the ducts, from a second heat exchange fluid, outside the ducts, the ducts having longitudinal axes that are substantially parallel to one another. A substantially planar... | 04/26/2005 |
| 6877206 | Method for producing a metal strip The invention relates to a method for producing a metal strip from a cast by rolling in which method the technique of a profiled rolling in combination with a strip rolling is used. The material for the metal strip is first cast by using a casting technique to produ... | 04/12/2005 |
| 6877388 | Device for preparing a sample for analysis The invention relates to a device for preparing a sample meant for continuously operated on-line analysis and containing finely divided, pulverous material, so that the sample is suited for an analysing method designed to analysing the surface layer of the sample, a... | 04/12/2005 |
| 6861037 | Method of removal of impurities from gold concentrate containing sulfides The present invention focuses on the method for the removal of impurities, such as tellurium and bismuth, from gold concentrate containing sulfides. According to the present method, the impurities are leached from the gold concentrate with the aid of an acidic aqueo... | 03/01/2005 |
| 6858176 | Method for sintering ferroalloy materials The invention relates to a method for sintering ferroalloy materials in a continuously operated band sintering process, in which method the pellets to be sintered are arranged on the sintering underlay as an essentially even pellet bed, which pellet bed is conveyed ... | 02/22/2005 |
| 6858175 | Bottom structure for a smelting furnace The invention relates to a bottom structure of a suspension smelting furnace to be used in a smelting furnace (1), in the reaction space (2) whereof of sulfidic raw material containing metal, such as copper, nickel or lead, is smelted in the presence o... | 02/22/2005 |
| 6855262 | Method and apparatus for clarifying and/or thickening a slurry The invention relates to a method of clarifying and/or thickening a solution containing solids i.e. a slurry, and the apparatus for accomplishing this. Using the method and apparatus of the present invention, the slurry to be fed into the clarification or thickening... | 02/15/2005 |
| 6852220 | Filter plate of a filter press A filter press for filtering suspensions includes plural parallel filter plates that can be displaced relative to one another. In a filtering position, the filter plates are compressed to a package that forms a filter chamber provided with at least one filter cloth ... | 02/08/2005 |
| 6843379 | Corrosion-resistant filter element The invention relates to a filter element with improved corrosion and heat resistance and structural properties to be used in filtering solids containing material in order to achieve a filter cake of solid material on at least one external surface area of the filter... | 01/18/2005 |
| 6840312 | Cooling element for a heater exchange The invention relates to a cooling element provided with louvers to be used in a heat exchanger under the influence of passing cooling medium used for cooling another medium flowing inside a circulating element whereto the cooling element is bounded by a contact are... | 01/11/2005 |
| 6832690 | Guiding device for a flotation machine The Invention relates to a flotation machine (1) which at least consists of a flotation cell (2) having a means for feeding slurry in the flotation cell, a gas dispersion mechanism (3) for feeding gas into the slurry and producing froth, a means... | 12/21/2004 |
| 6821405 | Device for conveying electrodes used in the electrolytic refining or electrowinning of metals The invention relates to a device for conveying electrodes, used in the electrolytic refining or electrowinning of metals, from one station to another, particularly when the electrodes are conveyed in an essentially perpendicular direction with respect to the line c... | 11/23/2004 |
| 6813921 | Method for rolling metal material into a metal strip The invention relates to a method for rolling a metal profile into a metal strip in which method the technique of a profiled rolling in combination with a strip rolling is used, comprising that during the at least two-staged profiled rolling the metal rod is divided... | 11/09/2004 |
| 6814571 | Arrangement and method for reducing build-up on a roasting furnace grate The present invention relates to an arrangement and method that help to reduce the build-up formed on the grate of a fluidized-bed furnace in the roasting of fine-grained material such as concentrate. The concentrate is fed into the roaster furnace from the wall of ... | 11/09/2004 |
| 6805190 | Method and apparatus for casting metal An apparatus and a method for the casting of metals comprising the steps of: indexing a mould (3) in series on a rotating carousel (2) to a pouring station (2.1), skimming station (2.2) and a mould transfer station (2.3) casting mo... | 10/19/2004 |
| 6805235 | Device for continuously operated belt sintering The invention relates to a device for moving the belt of a belt conveyor used in continuously operated belt sintering between the drawing drum and the folding drum, and for aligning the belt sintering belt to be moved by the belt conveyor with respect to the sinteri... | 10/19/2004 |
| 6802711 | Apparatus for supporting material to be treated in continuously operated thermal treatment furnaces The invention relates to an apparatus for supporting material to be treated in continuously operated thermal treatment furnaces, where the supporting of the material is realized by means of support elements installed externally to the thermal treatment furnace, in t... | 10/12/2004 |
| 6799683 | Flotation mechanism and method for dispersing gas and controlling flow in a flotation cell The invention relates to a flotation mechanism (4) comprising a directional element (25) and vertical vanes (26) located in a flotation cell (2). The directional element is symmetrical and is fixed at the center to the lower section of th... | 10/05/2004 |
| 6797229 | Apparatus for removing dust accretions from a smelting furnace The invention relates to an apparatus for mechanically breaking up and detaching dust accretions created by process gases and accumulated on the inner walls of a suspension smelting furnace and/or a waste heat boiler permanently connected to the suspension smelting ... | 09/28/2004 |
| 6797908 | High-tension electrostatic classifier and separator, and associated method The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona element supplies mobile ions for bombarding particulate materials dropping down a passageway... | 09/28/2004 |
