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| Number | Title | Issue Date |
| 8178036 | Impeller for dispersing gas into molten metal An impeller for dispersing gas into molten metal includes a rectangular prism body having upper and lower faces and four side walls. The body has an opening extending through the upper and lower faces and defines a hub around the opening on the upper face. The impel... | 05/15/2012 |
| 7625518 | Smelt spout opening cleaner, cleaning head and apparatus A spout opening cleaner for cleaning smelt spouts of recovery boilers and the like includes an actuation arm and self-aligning cleaning head. The cleaning head employs open bail designs for enabling continued flow of smelt during a cleaning cycle. ... | 12/01/2009 |
| 7556766 | Controlled free vortex scrap ingester and molten metal pump A scrap melter for light gage metal scrap includes a shrouded impeller connected to a shaft, the shaft connected to a rotary power device. The shrouded impeller is immersed in a molten metal pool in a charge bay or furnace. It is inclined at an angle relative to the... | 07/07/2009 |
| 7531126 | Powder fabricating apparatus The present invention relates to a powder fabricating apparatus. It is an object of the present invention to provide the powder fabricating apparatus, which is capable of obtaining metal powder in a rapid and continuous fashion, various kinds of oxide, or alloy powd... | 05/12/2009 |
| 7507365 | Multi functional pump for pumping molten metal The present invention features a multi-functional pump for pumping molten metal, which includes a base that is submerged in molten metal having at least two impeller chambers. The base includes one or more inlet openings and one or more outlet openings. Each outlet ... | 03/24/2009 |
| 7497988 | Vortexer apparatus A vortexer apparatus including a vessel comprising an exterior surface, an interior surface and a mouth for receiving material at an upper end of the interior surface. An outlet passageway extends downwardly from the interior surface. An inlet opening is located bet... | 03/03/2009 |
| 7402276 | Pump with rotating inlet A device for use in a molten metal pump helps alleviate jams between a rotating rotor and stationary inlet. The device includes an inlet structure including one or more openings and a displacement structure that preferably includes one or more rotor blades. The inle... | 07/22/2008 |
| 7326028 | High flow/dual inducer/high efficiency impeller for liquid applications including molten metal A centrifugal pump has a pump base with inlet inducer openings that receive molten metal into an impeller chamber. An impeller structure in the impeller chamber passes the metal in a radial direction through an outlet inducer opening into a volute passage for discha... | 02/05/2008 |
| 7273582 | Shaft and post assemblies for molten metal apparatus An apparatus for moving a stream of molten metal comprising a pumping member, a housing at least partially enclosing the pumping member, a power device seated on a support, and a shaft connecting the power device and the pumping member. At least one post is disposed... | 09/25/2007 |
| 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 |
| 7011133 | Molten aluminum filtration A filter material for molten aluminum, the material subsequently dissolvable in molten aluminum to recover aluminum captured therein. ... | 03/14/2006 |
| 6977059 | Molten metal shaft coupling system A molten metal pump shaft coupling system for use in the coupling or connection of elongated shafts to other components and equipment, and for the disconnection thereof. A coupling with internal discontinuous threads may be coupled with an externally threaded shaft,... | 12/20/2005 |
| 6960317 | Assembly for controlling a stopper belonging to a continuous casting installation, and corresponding continuous casting installation A control assembly for controlling reciprocal motion of a stopper used with a tundish dish including a shaft movably guided within a guiding assembly and connected to the stopper and wherein a motor is movable between a first postion wherein output from the motor is... | 11/01/2005 |
| 6960239 | Process and apparatus for adding particulate solid material to molten metal An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and ... | 11/01/2005 |
| 6887425 | Shaft and post assemblies for molten metal apparatus An apparatus for moving a stream of molten metal comprising a pumping member, a housing at least partially enclosing the pumping member, a power device seated on a support, and a shaft connecting the power device and the pumping member. At least one post is disposed... | 05/03/2005 |
| 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 |
| 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 |
| 6689310 | Molten metal degassing device and impellers therefor A device for dispersing gas into molten metal includes an impeller and a shaft having a first end and a second end. The second end of the shaft is connected to the impeller and the first end is connected to the drive source that rotates the shaft and impe... | 02/10/2004 |
| 6656415 | Process and device for precipitating compounds from zinc metal baths by means of a hollow rotary body that can be driven about an axis and is dipped into the molten zinc Process and device for precipitating solid compounds from zinc metal baths. Partial amounts of the metal phase containing these compounds are exposed to an acceleration higher than gravity and dissociated into fractions containing heavier or lighter compo... | 12/02/2003 |
| 6547850 | Method for mixing particles into a liquid medium A method for mixing particles in a liquid or semi-liquid medium, such as ceramic reinforcing particles in a molten metal or metal alloy matrix for the production of stir-cast metal matrix composite (MMC) materials. The particles can be introduced under th... | 04/15/2003 |
| 6508977 | Reinforced refractory shaft design for fluxing molten metal A shaft for use with molten aluminum using an impeller mounted on the shaft comprising a protective refractory sleeve resistant to attack by molten aluminum, the protective sleeve employing a reinforcing media and mounted on the shaft to extend above and ... | 01/21/2003 |
| 6491423 | Apparatus for mixing particles into a liquid medium An apparatus for mixing particles in a liquid or semi-liquid medium, such as ceramic reinforcing particles in a molten metal or metal alloy matrix for the production of stir-cast metal matrix composite (MMC) materials. The particles can be introduced unde... | 12/10/2002 |
| 6485674 | Device for producing soft solder Soft solder powder is made in the form of spherical fine metal particles having a grain size ranging from 1 to 100 μm and a Liquidus temperature | 11/26/2002 |
| 6471912 | Rotor for the treatment of a fluid such as a metal melt A device in connection with a rotor (9) for the treatment of a liquid such as molten metal in a reactor (20) or similar structure. Gas and/or particulate material is supplied to the liquid, preferably via the rotor shaft (8) and through openings (18) from... | 10/29/2002 |
| 6451246 | Molten metal vessel for filtering impurities A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be sup... | 09/17/2002 |
| 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 |
| 6358467 | Universal coupling A coupling mechanism for a molten metal processing system includes an elongated shaft having an upper axial end and a lower axial end. A passage having a torque facilitating shape extends through at least a portion of the shaft. The upper end of the shaft... | 03/19/2002 |
| 6315944 | Plant for casting metal with particles suspended therein Molten metal (6) in a furnace (5) and containing particles of solid material (not shown) in suspension is cast in moulds (1) conveyed continuously past the mould-filling station shown by a conveyor (4). To maintain the particles in suspension and keep the... | 11/13/2001 |
| 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 |
| 6299828 | Shaft design for fluxing molten metal A shaft for use in a method for treating molten aluminum using an impeller mounted on the shaft comprising a protective refractory sleeve resistant to attack by molten aluminum, the protective sleeve mounted on the shaft by casting to extend above and bel... | 10/09/2001 |
| 6290900 | Molten metal vessel for filtering impurities A molten metal vessel includes a first chamber for containing molten metal such as molten aluminum therein, a filtration chamber in which impurities contained in the molten metal are removed, and a second chamber for reserving clean molten metal to be sup... | 09/18/2001 |
| 6217631 | Method and apparatus for treating molten aluminum A method of heating a body of molten metal passing through a treatment bay. The method comprises providing a body of molten metal in a treatment bay and providing a baffle heater in the treatment bay to contact the molten metal. The baffle heater is compr... | 04/17/2001 |
| 6146443 | Pre-treated carbon based composite material for molten metal An improved shaft suitable for use in the treatment of molten aluminum including pumping or fluxing employing an impeller, comprised of a shaft material comprised of a carbon or graphite surface treated to provide a reacted surface and a refractory layer ... | 11/14/2000 |
| 6143055 | Carbon based composite material for molten metal An improved shaft suitable for use in the treatment of molten aluminum including pumping or fluxing employing an impeller, comprised of a shaft material comprised of a carbon or graphite having an exterior surface and a refractory layer provided to cover ... | 11/07/2000 |
| 6136264 | Melting apparatus and method for melting metal Melting apparatus for melting a metal, such as aluminium, comprising a melting chamber, a burner chamber and a passage which extends between the melting chamber and the burner chamber and which has an inlet opening on the melting-chamber side and an outle... | 10/24/2000 |
| 6074455 | Aluminum scrap melting process and apparatus A method of melting metal scrap in a molten melting media, the method comprising (a) providing a source of molten melting media in a furnace, the melting media in the furnace having a first surface level; (b) providing a first melting bay in fluid communi... | 06/13/2000 |
| 6066289 | Method for heating molten metal using heated baffle A method of heating a body of molten metal passing through a treatment bay. The method comprises providing a body of molten metal in a treatment bay and providing a baffle heater in the treatment bay to contact the molten metal. The baffle heater is compr... | 05/23/2000 |
| 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 |
| 6060014 | Gas dispersion apparatus for molten aluminum refining The maximum useful rate of aluminum refining is substantially increased by the incorporation of baffle means across the refining chamber under the rotor of a spinning nozzle assembly positioned in the refining chamber during aluminum refining operations.... | 05/09/2000 |
| 6056803 | Injector for gas treatment of molten metals An injector for injecting gas into a molten metal. The injector has a rotor that is rotatable about an axis of rotation, the rotor having a cylindrical projection-free side surface, a bottom surface, and a cavity for receiving molten metal located central... | 05/02/2000 |
