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| Number | Title | Issue Date |
| 7815846 | Agitator and melting furnace with agitator An agitator for applying an alternating field to a melting furnace main body in order to melt a row material to form a melt includes a plurality of magnets, which are arranged so that magnetic lines of force emitted from one of the magnets pass through the melt in t... | 10/19/2010 |
| 7666347 | Melting apparatus and method A melting apparatus facilitates the melting of pieces of solid metal in a bath of molten metal (10). The melting apparatus comprises a device (18) having a lower portion (22), an upper portion (20), and a body portion (24) extendin... | 02/23/2010 |
| 7297238 | Ultrasonic energy system and method including a ceramic horn An acoustic system for applying vibratory energy including a horn connected to an ultrasonic energy source. The horn defines an overall length and wavelength, and at least a leading section thereof is comprised of a ceramic material. The leading section has a length... | 11/20/2007 |
| 7010941 | Coating of cooled devices A structural component for a device for the treatment of melts, especially of glass melts, having a base body of metal or of a metal alloy and a cooling system in which a cooling medium is led through the structural component for the leading-off of heat. The base bo... | 03/14/2006 |
| 6893607 | Elevated discharge gas lift bubble pump and furnace for use therewith A metal melting closed furnace which includes a main chamber, a circulation well connected to the main chamber by a communications passageway and a vortex well having a exit outlet for molten metal into the main chamber. A cover is emplaced over the vortex well. An ... | 05/17/2005 |
| 6843959 | Mixer A mixer (10) for mixing molten metal in a kettle is disclosed. The mixer (10) broadly includes a housing (12), a drive train assembly (14) supported on the housing (12), and an impeller assembly (16) rotatably coupled to the... | 01/18/2005 |
| 6824702 | Device and method for producing molten salts and use thereof The invention relates to an apparatus and a process for the preparation of salt melts, and mixtures thereof, by means of a stirred reactor and a tubular reactor, in which the starting materials are melted and brought to reaction, and the reaction products are subseq... | 11/30/2004 |
| 6723276 | Scrap melter and impeller A device for submerging scrap metal includes: (a) a drive source, (b) a drive shaft having a first end and a second end, the first end being connected to the drive source, and (d) an impeller connected to the second end of the drive shaft, the impeller preferably ha... | 04/20/2004 |
| 6645270 | Method of heating a crucible for molten aluminum A method of heating molten aluminum in a container utilizing gas stirring means.... | 11/11/2003 |
| 6461404 | Ladle for enhanced steel vacuum decarburization A ladle is equipped with properly positioned side and bottom injectors for enhanced steel decarburization in a vacuum tank degasser. To facilitate the circulation of liquid steel in the tank the bottom injectors are positioned in a common segment in order... | 10/08/2002 |
| 6357264 | Apparatus for melting molten material This apparatus is a furnace for heating molten material which employs oxygen-fuel burner assemblies. Preferably, the assemblies are submerged in the molten material. They are water cooled top down units with burner nozzles being off-set from the supply co... | 03/19/2002 |
| 6303074 | Mixed flow rotor for molten metal pumping device A molten metal pumping device is disclosed that comprises a pump base including at least one input port, a pump chamber, a chamber wall, and a discharge leading to an output port. A rotor is retained within the chamber and is connected to a rotor shaft. T... | 10/16/2001 |
| 6224648 | Method and device for separating metals and/or metal alloys of different melting points In order to separate metals and/or metal alloys of different melting points from one another, a mixture of these metals and/or metal alloys is brought to a temperature at which the metal or the metal alloy of relatively low melting point is molten and the... | 05/01/2001 |
| 6168753 | Inert pump leg adapted for immersion in molten metal A graphite support leg for positioning an object, such as a pump, in a bath of molten metal. The leg is enclosed in a ceramic sleeve, and an inert material is disposed in a clearance between the leg and the sleeve to protect the leg from the heat of the m... | 01/02/2001 |
| 6068812 | Inert gas bubble-actuated molten metal pump with gas-diffusion grid An inert gas bubble-actuated molten metal pump, for the movement of molten metal in a molten-metal bath, which obviates the necessity of a heatproof and flameproof cover to counteract splashing and spattering at the surface of the molten metal bath above ... | 05/30/2000 |
| 6060013 | Rotary gas dispersion device for treating a liquid aluminium bath A rotary gas dispersion device for use in a liquid aluminium treatment vessel is disclosed. The device is useful for reducing surface disturbance, splashing and vortices while maintaining the effectiveness of the treatment. Said device includes a rotor (1... | 05/09/2000 |
| 6039917 | Jet column reactor pump with coaxial and/or lateral intake opening Apparatus for moving and degassing molten metal in a conduit by delivering a gas jet into the conduit in the same direction as the metal is moving, so the momentum of the gas jet pushes the metal along its path of motion.... | 03/21/2000 |
| 6036745 | Molten metal charge well In a charge well for adding scrap metal pieces or particles to a molten metal bath, a stationary diverter is provided within a charge well for diverting the circular flow of molten metal, caused by the orientation of the inlet port, in a downward directio... | 03/14/2000 |
| 6027685 | Flow-directing device for molten metal pump A system and device for introducing gas into molten metal comprises: 1) a pump having a pump chamber and a discharge, 2) a gas-release device for releasing gas into the discharge, and 3) a flow-directing device to substantially reduce or eliminate the low... | 02/22/2000 |
| 5984999 | Apparatus having gas-actuated pump and charge well and method of melting metal therewith charge a well of a metal-melting furnace The charge well of a metal melting furnace is provided with an internal cavity having a circular cross section when viewed from the top, preferably a cavity of cylindrical or conical configuration, and with a peripheral exit port located tangentially with... | 11/16/1999 |
| 5904894 | Rotary inert gas dispersion apparatus for molten metal treatment A rotating injector for use in the treatment of molten metal to remove impurities. Inert gas is flowed through a hollow rotary shaft having a lower gas port opening to a gas chamber surrounded by an outlet of porous material for creating micronized bubble... | 05/18/1999 |
| 5772320 | Method and aparatus for mixing a metal matrix composite An method and apparatus is described for mixing solid particulates in a molten metal matrix to form a metal matrix composite product flow. The apparatus a refractory vessel to hold the metal matrix; a refractory conduit in communication with both the inle... | 06/30/1998 |
| 5678807 | Rotary degasser A rotary degasser for removing impurities from molten metal is disclosed that includes a degasser shaft, an impeller block and a coupling. The shaft is preferably hollow to allow for the passage of gas therethrough. The impeller block is connected to the ... | 10/21/1997 |
| 5650120 | Bubble-operated recirculating pump for metal bath A bubble-operated pump for recirculating molten metal in a bath of such metal.... | 07/22/1997 |
| 5585067 | Aluminum alloys containing very finely dispersed bismuth, cadmium, indium and/or lead and a process for obtaining them An aluminum alloy containing at least one alloying metal selected from the group consisting of bismuth, cadmium, indium and lead in a quantity greater than the maximum solubility of the metal in solid aluminum. More than 80% by weight of the alloying meta... | 12/17/1996 |
| 5516081 | Water-cooled molten metal refining hearth An apparatus for producing a molten metal flow comprises a refining hearth having a water-cooled wall, and an entry flow channel through the wall of the hearth disposed tangentially to the wall such that a flow of molten metal introduced into the hearth t... | 05/14/1996 |
| 5435527 | Apparatus for the late introduction of particulate alloy when casting a liquid metal Apparatus for the late introduction of a particulate alloy when casting liquid metal, disposed between a casting ladle or an apparatus for the automatic feed of said metal and a series of moulds to be filled, characterised in that it comprises a jet of li... | 07/25/1995 |
| 5395094 | Means of conveying molten metal from one place to another in a metal-melting furnace with simultaneous alloying of the melt A method, for the conveyance of molten metal from one place to another, in a high-temperature molten metal pool in a metal-melting furnace or out of said molten metal pool, employing an at least partially-inclined elongated conveying conduit and gas feed ... | 03/07/1995 |
| 5364078 | Gas dispersion apparatus for molten aluminum refining The maximum useful rate of aluminum refining is increased by baffle means positioned across the refining chamber under the rotor of a spinning nozzle in the refining chamber, with open spaces to facilitate cleaning being provided in the vicinity of the si... | 11/15/1994 |
| 5350440 | Furnace with deflecting surface and method of charging metal solids A furnace (1) has a main holding (2) and a charging well (4) into which molten metal from the holding portion is circulated by means of an electromagnetic pump (7). Metal enters the well as a tangential flow and a stationary turbulator (10) is located in ... | 09/27/1994 |
| 5340379 | Jet flow device for injecting gas into molten metal and process A device is described for injecting gas into molten metal, e.g. molten aluminum, in a furnace chamber. It comprises: (a) a stirring apparatus having a reservoir chamber separate from the furnace chamber, a connector portion with an orifice connecting the ... | 08/23/1994 |
| 5324487 | Vacuum-suction degassing apparatus A melt is stored in a vessel. A lower half of a degassing member is immersed in the melt. The degassing member has a cylindrical form with the lower end closed, and the lower half section is made of a porous material which is permeable to gas and impermea... | 06/28/1994 |
| 5316719 | Apparatus for producing a substance utilizing agravic effect A method of producing a substance utilizing an agravic effect, and an apparatus for carrying out the same. A container (3, 55, 65) containing materials for producing a substance is revolved about a horizontal axis, at least while a process of producing th... | 05/31/1994 |
| 5306472 | Vacuum-suction degassing method and an apparatus therefor A melt is stored in a vessel placed in a decompression vessel. On the bottom of the vessel is arranged a bubble generator made of porous bricks, and bubbles of argon gas are introduced into the melt through this bubble generator. Also a lower half section... | 04/26/1994 |
| 5275385 | Rotor speed control for an aluminum refining system The rotor drive of an aluminum refining system is operated under constant current, rather than at constant rotor speed. As a result, smooth, stable refining operations are conveniently achieved in commercial practice.... | 01/04/1994 |
| 5160479 | Molten metal stirring device A stirring device for molten metals such as aluminum. The device involves a mechanism which inserts and dips a nozzle-shaped stirring tube into a melting furnace through an insertion hole opened in the side wall of the furnace and stirs the molten metal u... | 11/03/1992 |
| 5135202 | Apparatus for melting down chips An apparatus for melting down chips of, e.g., aluminum into a molten bath of a melting furnace for, e.g., aluminum. A charging vessel (10) is installed in the molten bath (2) of the melting furnace (1), and has an opening (11) kept above the surface (3) o... | 08/04/1992 |
| 5106062 | Modular apparatus for producing metal alloys in semi-liquid or paste-like state Apparatus for producing metal alloys in semi-liquid or paste-like state, constituted by a plurality of modular elements (1a--1b--1c, and so forth), each of which is formed by an elongated hollow body with two mutually opposite open faces, transversely to ... | 04/21/1992 |
| 5087292 | Process and apparatus for treating a liquid with a gas The invention relates to the treatment of a liquid with a gas. A gas injector, for example oxygen, is surrounded with a sheath to carry a flow of a liquid under treatment (for example lead) which is taken up and circulated by the pump. The end of the inje... | 02/11/1992 |
| 5020778 | Apparatus for stirring molten metal The invention provides a new stirring apparatus for stirring the liquid metal contents of a furnace, particularly the shallow furnaces used in the processing of aluminum and its alloys. The apparatus consists a reservoir separate from the furnace of relat... | 06/04/1991 |
