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| Number | Title | Issue Date |
| 7691322 | Furnaces and methods of melting The invention provides an improved furnace structure and methods of melting material in furnaces, particularly aimed at reducing the start up time for such furnaces. The furnace (2) defines a container for the molten metal having a maximum depth of molten met... | 04/06/2010 |
| 7449143 | Systems and methods of electromagnetic influence on electroconducting continuum Thus, as shown by an exact electrodynamic computation of EMBF and the estimations described above of the velocity of turbulent flows arising due to their effect, application of amplitude- and frequency-modulated helically traveling (rotating and axially traveling) e... | 11/11/2008 |
| 7316800 | Electromagnetic helical pump for high-temperature transportation of molten metal Electromagnetic helical pump for high-temperature transportation of molten metal, comprising an explicit-pole or implicit-pole inductor exciting a rotating magnetic field (RMF), and a helical channel consisting of a thick-wall ceramic pipe with a quick-change helica... | 01/08/2008 |
| 7270712 | Industrial microdeposition system for polymer light emitting diode displays, printed circuit boards and the like A microdeposition system (20) and method deposits precise amounts of fluid material onto a substrate. A microdeposition head (50) includes a plurality of spaced nozzles. A positioning device controls a position of the microdeposition head relative to t... | 09/18/2007 |
| 7258158 | Increasing stability of silica-bearing material Method and apparatus for prolonging the stability (working life) of a ceramic slurry and other aqueous mixture or dispersion containing a liquid silica-bearing or other component as well as the raw liquid silica-bearing component in ambient air over time by providin... | 08/21/2007 |
| 7249826 | Soldering a flexible circuit Techniques are provided for controlling solder flow in applications where a flexible circuit is soldered to a microelectromechanical structure. A metal layer is formed on a substrate. A solder mask is formed on the metal layer such that portions of the metal layer a... | 07/31/2007 |
| 7169350 | Method and apparatus for making a thixotropic metal slurry An apparatus for producing a thixotropic metallic melt by simultaneously controlledly cooling and stirring the melt to form solid particles of a first phase suspended in a residual liquid second phase. Vigorous stirring of the metallic melt results in the formation ... | 01/30/2007 |
| 7132077 | Method and apparatus for containing and ejecting a thixotropic metal slurry A container system including a vessel for holding a thixotropic semi-solid aluminum alloy slurry during its processing as a billet and an ejection system for cleanly discharging the processed thixotropic semi-solid aluminum billet. The crucible is preferably formed ... | 11/07/2006 |
| 7029624 | High-speed fabrication of highly uniform metallic microspheres In a high-speed fabrication process for producing highly uniform metallic microspheres, a molten metal is passed through a small orifice, producing a stream of molten metal therefrom. A series of molten metal droplets forms from the break up of the capillary stream.... | 04/18/2006 |
| 6991670 | Method and apparatus for making a thixotropic metal slurry An apparatus for producing a thixotropic metallic melt by simultaneously controlledly cooling and stirring the melt to form solid particles of a first phase suspended in a residual liquid second phase. Vigorous stirring of the metallic melt results in the formation ... | 01/31/2006 |
| 6984357 | Apparatus and method for holding molten metal in continuous hot dip coating of metal strip A molten metal holding apparatus for the continuous hot dip coating of a metal strip includes a vessel that is substantially rectangular in cross section having long sides and short sides and has formed a slot-shaped opening in a bottom surface, the vessel containin... | 01/10/2006 |
| 6978980 | Slide valve closure for the casting of a metal melt and a refractory plate unit belonging to it In a slide valve closure for the casting of a metal melt a slider plate and a stationary closure part are braced against each other by means of spring units or by other means. There is provided a casing framework attachable to a mould or the like, in which is fixed ... | 12/27/2005 |
| 6955946 | Flip chip underfill system and method A system for dispensing a viscous material onto a substrate which includes a dispensing element, a viscous material reservoir and a metering device coupled between the reservoir and the dispensing element for metering a variable amount of a viscous material through ... | 10/18/2005 |
| 6945447 | Thermal solder writing eutectic bonding process and apparatus A chip or die attachment process and related apparatus, in which a desired quantity of solder (7 or 17) is dispensed onto each, in turn, of a number of desired locations on a substrate (4 or 18), and then an integrated-circuit chip (10... | 09/20/2005 |
| 6932938 | Method and apparatus for containing and ejecting a thixotropic metal slurry A container system including a vessel for holding a thixotropic semi-solid aluminum alloy slurry during its processing as a billet and an ejection system for cleanly discharging the processed thixotropic semi-solid aluminum billet. The crucible is preferably formed ... | 08/23/2005 |
| 6732890 | Methods employing permanent magnets having reach-out magnetic fields for electromagnetically pumping, braking, and metering molten metals feeding into metal casting machines Method precisely, quickly controls flow of molten metal to metal-casting apparatus by pumping, braking or throttling. The Faraday-Ampére principle of current flow in a unidirectional magnetic field is employed. Permanent magnets comprising neodymium or similar high... | 05/11/2004 |
| 6602462 | Auger pump for handling magnesium and magnesium alloys An auger pump for pumping molten magnesium and its alloys from a furnace to a die casting machine, ingot mould, DC caster or the like is disclosed. The pump is comprised of a linearly aligned upper and lower portion. The upper portion is comprised of a ho... | 08/05/2003 |
| 6391247 | Flat inductors A flat inductor heating system for inducing heat in a variety of applications including heating, melting and holding a melt at temperature. The system may also be used to stir the melt. The system includes at least one flat induction coil cast in an aggre... | 05/21/2002 |
| 6378743 | Method, system and apparatus employing permanent magnets having reach-out magnetic fields for electromagnetically transferring, braking, and metering molten metals feeding into metal casting machines Apparatus, system and method precisely, quickly control flow of molten metal to metal-casting apparatus by pumping, braking or throttling. The Faraday-Ampere principle of current flow in a unidirectional magnetic field is employed. Permanent magnets compr... | 04/30/2002 |
| 6358466 | Thermal sprayed composite melt containment tubular component and method of making same A tubular thermal sprayed melt containment component for transient containment of molten metal or alloy wherein the tubular member includes a thermal sprayed inner melt-contacting layer for contacting molten metal or alloy to be processed, a thermal spray... | 03/19/2002 |
| 6358297 | Method for controlling flux concentration in guide tubes A method for controlling electromagnetic flux concentration in a discharge guide tube for a metal refining apparatus is provided. The discharge guide tube comprises a base plate, an extension, a central orifice that extends through the extension from a so... | 03/19/2002 |
| 6334975 | Molten magnesium supply system A molten metal transfer pipe 52 for transferring an injection sleeve 51 has a bent pipe portion 3 thereof reduced in diameter to provide a throttle part 4 attaining a pressure loss effect. A melting and holding furnace 101 with a tilting mechanism has a m... | 01/01/2002 |
| 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 |
| 6217825 | Device and fireproof nozzle for the injection and/or casting of liquid metals In a process for splashing and/or teeming liquid metal, in particular steel, through a discharge in the wall or in the bottom of a metallurgical vessel, the discharge is electromagnetically coupled to the electromagnetic field of at least one fluid-cooled... | 04/17/2001 |
| 6210629 | Method and device for discontinuous parting off of molten mass The invention pertains to a process and an apparatus for the discontinuous tapping of melts. An inductor surrounds a passage through which the melt is discharged from a vessel. The inductor applies radial electromagnetic energy to the passage to maintain ... | 04/03/2001 |
| 6077474 | Ball formation apparatus An apparatus and method of forming balls includes a metering device 2, a melting device 14 and a cooling device 20. The metering device 14 stamps a desired volume of solid material in the form of a slug 12 which passes through the melting device 14 where ... | 06/20/2000 |
| 5968447 | Tapping method for electric arc furnaces, ladle furnaces or tundishes and relative tapping device Tapping method for molten metal from containers (13) including at the lower part a tapping channel (14) associated at the end part with a discharge hole (15) substantially vertical or sub-vertical, the discharge hole (15) being associated at the lower par... | 10/19/1999 |
| 5948138 | Method and apparatus for stirring of molten metal using electromagnetic field Method and apparatus for controlling stirring of molten metal(24) during processing in a metallurgical vessel(20), free of mechanical-contact with the molten metal(24). Efficiencies of metal processing and improvements in metallurgical properties are achi... | 09/07/1999 |
| 5939016 | Apparatus and method for tapping a molten metal bath An apparatus and method relate to tapping a molten metal bath from a reactor. The apparatus includes a tapping pipe having a tapping pipe inlet and tapping pipe outlet for withdrawing a portion of the molten bath from the reactor. The molten bath can flow... | 08/17/1999 |
| 5876615 | Molten solder drop ejector A simple yet highly reliable technique for ejecting a droplet of heated solder, or other liquid conductive material, is described. Small droplets of an electrically-conductive liquid are ejected on-demand from a drop generator operating on a magnetohydrod... | 03/02/1999 |
| 5868305 | Jet soldering system and method An apparatus for depositing a selected pattern of solder onto a substrate comprising a substrate support, a solder ejector, and a gas-delivery system associated with the solder ejector. The substrate support has structure for bearing a substrate on which ... | 02/09/1999 |
| 5853605 | Liquid metal pouring duct, process and device for homogenizing metal A liquid metal casting conduit (1) is shaped as a partial torus and has an inductor (3) embedded in concrete and whose turns are asymmetrical with respect to the axes (XX') and (YY') of the conduit. It is used for to the homogenization of the metal temper... | 12/29/1998 |
| 5779971 | Solder jet printhead A solder drop ejector is disclosed where a current through liquid solder in a channel flows in a direction opposite to the direction of current through a fixed conductor insulated from the channel. The magnetic fields generated repulse the solder toward a... | 07/14/1998 |
| 5765730 | Electromagnetic valve for controlling the flow of molten, magnetic material An electromagnetic valve for controlling the flow of molten, magnetic material is provided, which comprises an induction coil for generating a magnetic field in response to an applied alternating electrical current, a housing, and a refractory composite n... | 06/16/1998 |
| 5707585 | Liquid metal pump and apparatus for use in cleaning and recycling solder A liquid metal electromagnetic pump 17 operates by passing an electric current through the liquid metal in a direction transverse to an applied magnetic field and the longitudinal axis of the liquid metal flow pipe. The direction of the pump is reversible... | 01/13/1998 |
| 5690854 | Regulation and closure apparatus for a metallurgical vessel A regulation and closure apparatus for a metallurgical vessel includes a stator to be disposed in a vessel wall and a rotor is rotatably supported in the stator for choking or blocking melt flow. A heating capability is provided in that the rotor is encom... | 11/25/1997 |
| 5681527 | Molten metal holding apparatus In a molten metal holding apparatus in which an alternating magnetic flux is generated in the horizontal direction at a lower end portion of a molten metal and the molten metal 7 is held within an upper and lower opening container 6 by an electromagnetic ... | 10/28/1997 |
| 5563904 | Process for melting an electroconductive material in a cold crucible induction melting furnace and melting furnace for carrying out the process A process for melting an electroconductive material (1) in a melting furnace (10) by induction in a cold crucible includes electromagnetically confining a mass of the electroconductive material (1) up to its melting temperature. Then, at least one vortex ... | 10/08/1996 |
| 5429655 | System for removing non-metallic foreign matter in molten metal An apparatus for removing non-metallic foreign matter in a molten steel includes a tundish and a coil device. The tundish is an intermediate container receiving the molten steel from a ladle and feeding a purified molten steel by removing the non-metallic... | 07/04/1995 |
| 5377961 | Electrodynamic pump for dispensing molten solder A system is provided for depositing an extremely small amount of solder on a printed circuit board by varying the direction of an electric current applied to a solder stream. The force exerted on the solder can be substantially instantaneously reversed wi... | 01/03/1995 |
