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| Number | Title | Issue Date |
| 7388896 | Induction melter apparatus Apparatus and methods of operation are provided for a cold-crucible-induction melter for vitrifying waste wherein a single induction power supply may be used to effect a selected thermal distribution by independently energizing at least two inductors. Also, a bottom... | 06/17/2008 |
| 7368690 | Method of and apparatus for processing of semi-solid metal alloys Apparatus for producing a semi-solid metal alloy from a molten charge includes vertically aligned treatment zones which are provided by vertically aligned passages defined by a plurality of spirally wound flow pipes which are interspersed between spirally wound indu... | 05/06/2008 |
| 7323032 | Pyrochemical reprocessing method for spent nuclear fuel This invention is provided for improvement of corrosion-resistant property of a crucible and for promotion of safety in a pyrochemical reprocessing method for the spent nuclear fuel. The spent nuclear fuel is dissolved in a molten salt placed in the crucible. In a p... | 01/29/2008 |
| 7197061 | Directional solidification of a metal A molten material can be heated, melted and directly solidified in a single vessel. Induction heating and melting of the molten material is achieved by magnetically coupling the field produced by current flow in a plurality of induction coils surrounding the vessel ... | 03/27/2007 |
| 7137277 | Method and device for producing colored glasses The invention relates to a method and a device for producing colored glasses. The aim of the invention is to obtain a paricularly intimate mixture and to enable a quick change of the melt at the same time. To this end, the following procedure steps are applied: a me... | 11/21/2006 |
| 7085305 | Induction heating apparatus and methods of operation thereof Methods of operation of an induction melter include providing material within a cooled crucible proximate an inductor. A desired electromagnetic flux skin depth for heating the material within the crucible may be selected, and a frequency of an alternating current f... | 08/01/2006 |
| 6993061 | Operating an induction melter apparatus Apparatus and methods of operation are provided for a cold-crucible-induction melter for vitrifying waste wherein a single induction power supply may be used to effect a selected thermal distribution by independently energizing at least two inductors. Also, a bottom... | 01/31/2006 |
| 6915750 | Plasma reactor-separator The invention relates to arc-heating plasma reactors for simultaneous making of refractory, metal and non-metal material melt and sublimates having a high degree of a melt viscosity and can be used in cement, chemical industries and metallurgy. The aim of the presen... | 07/12/2005 |
| 6904809 | Magnetic flowmeter with integral liquid trap An integral trap magnetic flowmeter having an inlet in fluid communication with a sensing passage, the sensing passage intersecting a magnetic field, having electrodes for detecting a flow-dependent voltage induced by the passage of conductive liquid through the mag... | 06/14/2005 |
| 6831939 | Dual use of an induction furnace to produce hot metal or pig iron while processing iron and volatile metal containing materials A method of operating an induction furnace so as to receive electric arc furnace (EAF) dust, basic oxygen furnace (BOF) sludge/dust and/or other iron and volatile metals containing materials as a feed stream on a batch, continuous or semi-continuous basis together w... | 12/14/2004 |
| 6819704 | Induction melting furnace with metered discharge An induction melting furnace comprises a melt chamber for heating a melt either directly by magnetic induction, or indirectly by magnetic induction heating of the melt chamber, or a combination of the two, and a meter chamber connected to the melt chamber for provid... | 11/16/2004 |
| 6600768 | Induction melting furnace with metered discharge An induction melting furnace comprises a melt chamber for heating a melt either directly by magnetic induction, or indirectly by magnetic induction heating of the melt chamber, or a combination of the two, and a meter chamber connected to the melt chamber... | 07/29/2003 |
| 6596221 | Metallurgical vessel having a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel In a metallurgical vessel (1) having a tapping apparatus (5) for the slag-free withdrawal of liquid metal (3) from a molten metal bath (3) which is disposed in the vessel (1), a first leg (11) of a discharge duct (10) passes through the refractory vessel ... | 07/22/2003 |
| 6523598 | Vacuum induction melting system The vacuum induction melting system is designed to be operated in a continuous or semi-continuous manner for extended periods of time for increased efficiency, and makes it possible to easily and quickly remove the induction furnace from the melt chamber ... | 02/25/2003 |
| 6507598 | Induction heating furnace and bottom tapping mechanism thereof An induction heating furnace includes a furnace body having a side wall extending so obliquely as to increase in radius from the bottom to the top edge portion and formed by a plurality of longitudinally split, conductive segments arrayed circumferentiall... | 01/14/2003 |
| 6487234 | Induction heating furnace and bottom tapping mechanism thereof An induction heating furnace includes a furnace body having a side wall extending so obliquely as to increase in radius from the bottom to the top edge portion and formed by a plurality of longitudinally split, conductive segments arrayed circumferentiall... | 11/26/2002 |
| 6436336 | Replaceable drain electroslag guide A melt guide includes a base plate having internal cooling channels and a center aperture extending vertically therethrough. A unitary drain bushing is removably mounted in the aperture and is readily replaceable after wear thereof.... | 08/20/2002 |
| 6409791 | Metallothermal process and continuous drawing, in cold induction furnaces, of metals or alloys A metallothermy method includes continuously withdrawing an ingot of a metal product such as uranium or a uranium alloy as it is formed from an oxide or salt of the metal. The method employs upper and lower communicating crucibles. The upper crucible cont... | 06/25/2002 |
| 6385231 | Induction heating furnace and bottom tapping mechanism thereof An induction heating furnace includes a furnace body having a side wall extending so obliquely as to increase in radius from the bottom to the top edge portion and formed by a plurality of longitudinally split, conductive segments arrayed circumferentiall... | 05/07/2002 |
| 6360810 | Vacuum induction melting system A vacuum induction melting system includes a melt chamber which forms an airtight enclosure, with an induction furnace located within the melt chamber. A mold tunnel is connected to the melt chamber adjacent its lower end, with the mold tunnel including a... | 03/26/2002 |
| 6307875 | Induction heating furnace and bottom tapping mechanism thereof An induction heating furnace includes a furnace body having a side wall extending so obliquely as to increase in radius from the bottom to the top edge portion and formed by a plurality of longitudinally split, conductive segments arrayed circumferentiall... | 10/23/2001 |
| 6226314 | Assembly of a tapping device and a cooled inductor An assembly includes a tapping device for flow therethrough of molten material and a cooled inductor to be connected to an electrical source and mounted with respect to the tapping device to be inductively coupled to one of the tapping device and the molt... | 05/01/2001 |
| 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 |
| 6219372 | Guide tube structure for flux concentration A guide tube structure for flux concentration is provided. The discharge guide tube comprises a central orifice that extends from a source of metal to an outlet in the discharge guide tube for directing a stream of melt therethrough; a structure that gene... | 04/17/2001 |
| 6185243 | Glass induction melting furnace using a cold crucible A melting furnace for insulating materials is provided with a cooled crucible (10) having continuous metal side malls, a partitioned and cooled bottom (12) and at least one induction coil (28) placed under the bottom which serves as the sole heating means... | 02/06/2001 |
| 6144690 | Melting method using cold crucible induction melting apparatus The present invention relates to a melting method by which the melting raw materials having a variety of configurations are collectively melted to enable the composition to be adjusted in the melt, and a melting apparatus and tapping method by which tappi... | 11/07/2000 |
| 6101212 | Sealed evacuatable crucible for inductive melting or superheating A sealed evacuatable crucible (1) for inductive melting of metals or other electrically conductive materials, including a plurality of palisades (2,2', . . . ) which are arranged parallel to one another, and for enclosing the melt and forming the crucible... | 08/08/2000 |
| 6097750 | Electroslag refining hearth A cold hearth for an electroslag refining crucible includes a floor above which a melt pools. The floor includes a drain for draining the melt by gravity. A plug is deployed inside the drain to block discharge of the melt therethrough, and an actuator is ... | 08/01/2000 |
| 6052403 | Inductor in a fusion tank An inductor is used to generate an electromagnetic AC field at a pipe-in-pipe discharge element of a metallurgical vessel. The inductor has at least two cooling fluid regions for the flow of cooling fluid therethrough. First supply and drain lines are con... | 04/18/2000 |
| 6049560 | Inductively heated side drain for high temperature molten materials An inductively heated drain tube fashioned of high temperature, electrically conducting materials is disclosed. An inductor surrounds the drain tube. The inductor and drain tube are cast within a refractory material. The drain tube is then placed in commu... | 04/11/2000 |
| 5901169 | Apparatus for discharging molten matter from cold crucible induction melting furnace Molten matter is discharged from a cold crucible induction melting furnace provided with a furnace body disposed within a high-frequency coil for heating the furnace body. A metallic discharging nozzle extends downwardly from an inner bottom portion of th... | 05/04/1999 |
| 5889813 | Levitation melting furnace A cooling water conduit extending through a segment of a crucible is curved inward in the portion around a molten metal tapping hole.... | 03/30/1999 |
| 5872352 | Swingable induction heating chamber for melting ingot for metal casting A heating machine for heating an ingot of a metal such as a magnesium alloy. The heating machine has a heating chamber equipped with a RF induction coil capable of swinging about a horizontally axis. The coil is placed horizontally, and the metal ingot is... | 02/16/1999 |
| 5809057 | Electroslag apparatus and guide A melt guide is provided for enclosing a bottom of an electroslag refining crucible containing a melt of electroslag refined metal. A base plate is sized to have a perimeter to engage the crucible bottom for attachment thereto. The base plate includes an ... | 09/15/1998 |
| 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 |
| 5559827 | Vacuum melting-pressure pouring induction furnace A furnace in the invention includes an induction melting furnace housed in an air-tight container which can be pressurized to the desired level of maximum allowable pressure and can be vacuum evacuated to a desired level of pressure; a vacuum melting furn... | 09/24/1996 |
| 5526375 | Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with sintering crust crucible A method is disclosed for the semi-continuous melting of ceramic material by means of inductive melting in high-frequency and medium-frequency induction melting furnaces whose melting coil surrounds a sintering crust crucible and contains a run-out channe... | 06/11/1996 |
| 5487873 | Method and apparatus for treating hazardous waste or other hydrocarbonaceous material Methods and apparatus for treating waste with radio frequency include a wall defining a radio frequency treatment chamber through which waste may be passed. A source of radio frequency energy energizes the radio frequency treatment chamber to heat the was... | 01/30/1996 |
| 5479438 | Apparatus for fusing a solid layer of electrically conductive material In a melting crucible (3) a central bottom portion (27) is formed of a plurality of palisades (5) and is shaped so that the palisades together form a vessel or a pot (7) having a centrally disposed spout or outlet (8). Two independently powered induction ... | 12/26/1995 |
| 5430757 | Method and apparatus for the semi-continuous melting and discharging of ceramic material in an induction melting furnace with sintering crust crucible A method is disclosed for the semi-continuous melting of ceramic material by means of inductive melting in high-frequency and medium-frequency induction melting furnaces whose melting coil surrounds a sintering crust crucible and contains a run-out channe... | 07/04/1995 |
