| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 373138000 | INDUCTION FURNACE DEVICE | 42 |
| 20090323756 | Induction furnace for the controllable melting of powder/granular materials - An induction furnace includes a melting induction coil for inductively heating a pair of susceptors for melting particulate material falling freely in a free fall zone between the susceptors. A feeder having a rotatable hollow shaft with fingers extending therefrom breaks up the material, which falls onto a vibrating dispersion plate and then into the free fall zone. A preheating induction coil inductively heats a susceptor which radiates heat to particulate material moving over the dispersion plate. An adjustable gap between the feeder and dispersion plate controls material flow. A funnel collects falling molten material and directs it through a nozzle into a mold. Induction coils control melting within the funnel. One induction coil heats the nozzle and may be controlled to allow the nozzle to cool sufficiently to form a solid plug in the nozzle whereby molten material pools above the plug. | 12-31-2009 |
| 20110075696 | EASILY REMOVABLE COMBUSTION TUBE - A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace. | 03-31-2011 |
| 20110176576 | MELTING FURNACE - A melting furnace of the present invention includes a sealed container containing an inert gas atmosphere, a crucible that is located inside the sealed container and melts a raw material by induction heating, and a crucible cooling mechanism. The crucible cooling mechanism includes a pipe portion that includes an intake that communicates with the sealed container and enables the inert gas to be discharged from the sealed container, and an outlet that enables the inert gas to be introduced into the sealed container, a heat exchange portion that is located partway along the pipe portion, and a gas transporting portion that is located partway along the pipe portion. | 07-21-2011 |
| 373140000 | With internal atmosphere control (e.g., pressure, vacuum, etc.) | 5 |
| 20110292962 | Electric Induction Gas-Sealed Tunnel Furnace - An electric induction gas-sealed tunnel furnace and process are provided. The exterior of the furnace's enclosure that forms a closed tunnel region is surrounded at least along its longitudinal length by a gas-tight barrier chamber that can be filled with a barrier gas to a different pressure than the pressure of the process gas in the closed tunnel region of the furnace. The inductors used to induction heat strips or plates in the closed tunnel region can be positioned within or outside of the gas-tight barrier chamber around the longitudinal length of the closed tunnel region. | 12-01-2011 |
| 20150023383 | CYLINDRICAL COMBUSTION TUBE AND MOUNTING ASSEMBLY - A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace. | 01-22-2015 |
| 20150036713 | COMBUSTION TUBE AND SEAL ASSEMBLY - A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace. | 02-05-2015 |
| 20150036714 | FURNACE COMBUSTION TUBE AND MOUNTING ASSEMBLY - A combustion tube mounting system releasably mounts a combustion tube to an aperture in the floor of a furnace housing. The combustion tube has a base assembly with a cam and can be manually or automatically unlocked by cam pins in the floor for selectively engaging the cam for lowering the combustion tube from the floor of the furnace. When a new combustion tube is placed on the lower seal assembly and raised, it automatically aligns and engages the upper furnace seal and engages cams on the floor of the furnace housing which lock the combustion tube in place as it is introduced into the furnace. | 02-05-2015 |
| 373141000 | Vacuum | 1 |
| 20160091249 | CRUCIBLES FOR MELTING MATERIAL AND METHODS OF TRANSFERRING MATERIAL THEREFROM - A crucible for melting material includes at least one wall at least partially enclosing a volume and including an orifice through a portion thereof, and a chill plate supported for movement between at least a first position covering the orifice and a second position. The chill plate is configured for removal of heat from the at least one wall when in the first position. Some crucibles include a substantially flat bottom plate, a plurality of hollow tubes above the substantially flat bottom plate proximate a periphery thereof, and a plurality of O-rings. Each hollow tube is in contact with at least one O-ring, and each O-ring is in contact with the substantially flat bottom plate. A method includes moving the chill plate, initiating flow of molten material, terminating flow of molten material, and replacing the chill plate. Flow of material may be controlled by providing a vacuum in the crucible. | 03-31-2016 |
| 373142000 | For charging or discharging | 10 |
| 20080267251 | STACKED INDUCTION FURNACE SYSTEM - A stacked induction furnace system includes a first furnace having an induction coil to heat and melt a substantially non-conductive material contained in an upper crucible. The upper crucible contains an opening in a bottom surface thereof to drain molten material therefrom. A second furnace is positioned below the first furnace and includes a lower crucible to receive the molten material drained from the opening and is arranged to maintain the molten state of the material in the lower crucible. One or more power sources are provided to power the first furnace and the second furnace. | 10-30-2008 |
| 20110243180 | METHOD AND DEVICE FOR THE CONTINUOUS MELTING OR REFINING OF MELTS - A method for the continuous production of products from a melt is provided. The method includes heating the melt to a predetermined temperature in a skull crucible, the bottom of which is formed from electrically non-conductive, but thermally conductive material. | 10-06-2011 |
| 20120236898 | Open Bottom Electric Induction Cold Crucible for Use in Electromagnetic Casting of Ingots - An open bottom electric induction cold crucible with a slotted wall extending below one or more induction coils surrounding the partial exterior height of the crucible is used in an electromagnetic casting process for the production of ingots. A bottom magnetic shield is provided around the outer perimeter of the crucible's slotted wall in the vicinity of the bottom opening and the bottom termination of the wall slots and the bottom connecting member. | 09-20-2012 |
| 20130182740 | COLD CRUCIBLE INDUCTION MELTER INTEGRATING INDUCTION COIL AND MELTING FURNACE - A cold crucible induction melter includes an induction coil and a melting furnace. The induction coil serves as a water cooled segment to directly transmit an induced current to a molten material in the cold crucible induction melter (CCIM), improving energy efficiency. Simultaneously, the structure of the CCIM is simplified and enables a smooth discharge even when the molten material consists of a ceramic or a metal material with a high melting point. The cold crucible induction melter heats and melts waste using an induced current which is generated in a water cooled segment by a high frequency current that is applied to the induction coil. The water cooled segment and the induction coil are disposed in a vertical direction so that the induced current that is generated by the induction coil is directly transmitted to the molten material. | 07-18-2013 |
| 20130266037 | INDUCTION MELTING FURNACE HAVING ASYMMETRICAL SLOPING BOTTOM - An induction melting furnace having an asymmetrical sloping bottom. The melting furnace includes: an induction coil member provided on the melting furnace so as to melt waste contained in the furnace by vitrification; a bottom unit provided in a lower part of the melting furnace, the bottom unit asymmetrically sloping downward in a direction toward a glass discharge port that is formed through the bottom unit; and a cooling member integrated with the bottom unit. Due to the asymmetrical sloping bottom of the furnace, waste in the furnace can be completely melted and can be easily discharged to the outside and, accordingly, the time and cost required to treat the waste are reduced and this improves work efficiency when treating the waste. Further, due to the insulation material, the melting furnace can be protected from electric damage that may be caused by electric arc. | 10-10-2013 |
| 20130336354 | CHANNEL TYPE INDUCTION FURNACE - The invention comprises a double loop channel type induction furnace of which the floor has a base on a first side of its hearth and a ramp which rises from the base to terminate in a plateau above the passages at a location distal from the first side. The ramp and plateau extends at least partly between opposing end walls of the furnace, and the plateau includes a trench which extends at least partly between opposing ends of the plateau. The trench is in fluid communication with the passages and the bottom of the trench is located in a plane higher than the plane in which the furnace floor is located. The base of the furnace floor is in fluid communication with the central passage by means of a floor passage that extends from the base of the floor to the central passage through the ramp below the trench. | 12-19-2013 |
| 20150098484 | TAPPING DEVICE AND METHOD USING INDUCTION HEAT FOR MELT - A tapping device and method using induction heat for melt comprises melting furnace made of steel; heating unit disposed in the upper part in the melting furnace and made of graphite material; induction coil wound around the heating unit; insulator disposed adjacent to the bottom surface of the lower part of the melting furnace; supporter disposed outside the insulator; and firebricks disposed on the bottom surface of melting furnace and outside the supporter. | 04-09-2015 |
| 20150307383 | METAL SECTOR FOR BOTTOM OF GLASS MELTING FURNACE, AND GLASS MELTING FURNACE - A plurality of metal sectors separately arranged so as to form a bottom of a glass melting furnace. The metal sectors include an upper surface made from a bottom surface of the glass melting furnace, a lower surface opposite to the upper surface, and a plurality of lateral surfaces coming in contact with the upper surface and the lower surface. An electrical arc suppression structure is provided at a part or an entire part of a corner in which the upper surface or the lower surface comes in contact with each lateral surface. The electrical arc suppression structure is a rounded corner or an insulation coating layer. The electrical arc suppression structure enables stable operation of the glass melting furnace. | 10-29-2015 |
| 373143000 | By tilting | 2 |
| 20130044785 | ELECTRIC INDUCTION MELTING ASSEMBLY - A dry-break electrical disconnect is provided between an induction melting furnace and a component of the electric induction melting assembly in which the furnace is removably installed for melting in a vacuum or otherwise controlled environmental chamber. Electric power connections are made to the induction melting furnace in a sealed interior volume of the assembly component that can be pressurized and of a different environment than that in the controlled environmental chamber. The assembly component may be a tilting cradle installed in the controlled environment chamber. | 02-21-2013 |
| 20140321496 | DEVICE FOR SUPPLYING ENERGY TO MELTING FURNACES - The invention relates to a coupling device ( | 10-30-2014 |
| 373145000 | Having condition signaling means | 1 |
| 20120300806 | Electric Induction Furnace with Lining Wear Detection System - An electric induction furnace for heating and melting electrically conductive materials is provided with a lining wear detection system that can detect replaceable furnace lining wear when the furnace is properly operated and maintained. | 11-29-2012 |
| 373146000 | With means for manipulation of the charge or melt (e.g., stirring) | 4 |
| 20090129429 | MELTING AND MIXING OF MATERIALS IN A CRUCIBLE BY ELECTRIC INDUCTION HEEL PROCESS - Apparatus and method are provided for electric induction heating and melting of a transition material that is non-electrically conductive in the solid state and electrically conductive in the non-solid state in an electric induction heating and melting process wherein solid or semi-solid charge is periodically added to a heel of molten transition material initially placed in a refractory crucible. Induction power is sequentially supplied to a plurality of coils surrounding the exterior height of the crucible at high power level and high frequency with in-phase voltage until a crucible batch of transition material is in the crucible when the induction power is reduced in power level and frequency with voltage phase shifting to the induction coils along the height of the crucible to induce a unidirectional electromagnetic stir of the crucible batch of material. | 05-21-2009 |
| 20130070803 | MELTING FURNACE HAVING A GAS SUPPLYING APPARATUS - A melting furnace includes a gas supplying unit configured to protrude inwardly of the melting furnace to supply a gas to the melting furnace, the gas supplying unit including a gas supplying pipe configured to penetrate the melting furnace to protrude inwardly of the melting furnace and configured to have a nozzle hole formed at a front end thereof; and a cooling passage pipe provided outside the gas supplying pipe to include a second cooling passage through which a cooling liquid flows, the second cooling passage being directly connected to a first cooling passage through which the cooling liquid is circulated along a wall of the melting furnace. | 03-21-2013 |
| 20140029644 | Melting and Mixing of Materials in a Crucible by Electric Induction Heel Process - Apparatus and method are provided for electric induction heating and melting of a transition material that is non-electrically conductive in the solid state and electrically conductive in the non-solid state in an electric induction heating and melting process wherein solid or semi-solid charge is periodically added to a heel of molten transition material initially placed in a refractory crucible. Induction power is sequentially supplied to a plurality of coils surrounding the exterior height of the crucible at high power level and high frequency with in-phase voltage until a crucible batch of transition material is in the crucible when the induction power is reduced in power level and frequency with voltage phase shifting to the induction coils along the height of the crucible to induce a unidirectional electromagnetic stir of the crucible batch of material. | 01-30-2014 |
| 20140254621 | Electric Induction Heating and Stirring of an Electrically Conductive Material in a Containment Vessel - Apparatus and method are provided for electric induction heating and/or stirring of a molten electrically conductive composition in a containment vessel with the apparatus being removably insertable in the molten composition. An induction coil embedded in refractory or a coating is submerged in the composition and used to heat and/or stir the molten composition either externally or internally to the refractory or coating. | 09-11-2014 |
| 373147000 | Power supply system | 2 |
| 20110075697 | Cold Crucible Induction Furnace with Eddy Current Damping - Apparatus and method are provided for damping the induced fluid flow, particularly in the region of the base plate, in an electrically conductive material that is heated and melted in a cold crucible induction furnace. Damping is accomplished by establishing a dc magnetic field such that flow of the electrically conductive liquid metal in that dc magnetic field would induce eddy currents in the liquid metal which would generate forces that tend to oppose the flow. The dc magnetic field may be established by dc current flow in the ac induction coil that induces current in the material, dc current flow in a separate dc coil, or coils, constructed to prevent excessive induced losses, by discrete magnets, or a combination of any of the three prior methods. The dc magnetic field may also be established by dc current flow in one or more dc coils disposed around a magnetic pole piece located below the base of the furnace. One end of the magnetic pole piece is located adjacent to the bottom of the crucible base, so that the pole piece concentrates the dc field into the lower portion of the molten electrically conductive material. | 03-31-2011 |
| 20140112366 | PROCESS AND METHOD FOR HOT CHANGING a VIM INDUCTION FURNACE - An apparatus, method and process directed to enabling a VIM induction furnace to be removed from a vacuum chamber while the induction furnace is still in a heated state without damaging the induction furnace. The induction furnace can include a power port that can be easily switched to an auxiliary cooling source to enable the induction furnace to be removed from the vacuum chamber while the induction furnace is still in a heated state. | 04-24-2014 |
| 373149000 | For furnace regulating | 3 |
| 373150000 | Electrical | 3 |
| 20110164650 | ELECTROMAGNETIC INDUCTION MELTING FURNACE TO CONTROL AN AVERAGE NOMINAL DIAMETER OF THE TIB2 CLUSTER OF THE AL-TI-B ALLOY - An electromagnetic induction melting furnace to control an average nominal diameter of the TiB | 07-07-2011 |
| 20110194584 | ELECTROMAGNETIC INDUCTION MELTING FURNACE TO CONTROL AN AVERAGE NOMINAL DIAMETER OF THE TIC CLUSTER OF THE AL-TI-C ALLOY - An electromagnetic induction melting furnace to control an average nominal diameter of the TiC cluster of the Al—Ti—C alloy includes a main body containing the melted alloy; and a multi-layer coil disposed on the main body, wherein a frequency of the alternative current of each coil of the multi-layer coil is different, and the alloy is heated by inducing a magnetic field generated by the alternative currents. The selection of the frequency and the changeable magnetic field may reduce the cohesion force between the TiC grains of the Al—Ti—C alloy to control the average nominal diameter of the TiC cluster. | 08-11-2011 |
| 20120114009 | FORWARD-FLYBACK POWER SUPPLY USING AN INDUCTOR IN THE TRANSFORMER PRIMARY AND METHOD OF USING SAME - A power supply ( | 05-10-2012 |
| 373151000 | Coreless | 9 |
| 373152000 | Coil | 4 |
| 20080225924 | Melting Furnace with an Inductor Device with a Single Loop Consisting of a Plurality of Conductors - The inductor of a melting furnace also comprising a crucible, consists of parallel but oblique conductors and forming a wave around the crucible, with at least one descending portion ( | 09-18-2008 |
| 20100080259 | Openable Induction Coil and Electromagnetically Shielded Inductor Assembly - An openable induction coil is provided. An electromagnetically shielded inductor assembly can be formed from the openable induction coil and an electromagnetically shielded enclosure into which the coil can be inserted. The induction coil can be pivoted open while in the shielding enclosure without complete disassembly of the enclosure. In some examples of the invention, a dynamic “curtain” of a gas is injected through spaces between opening portions of the coil and adjacent sections of the shielding enclosure, and into the interior of the induction furnace formed by the openable induction coil when it is in the closed position. | 04-01-2010 |
| 20100238967 | METHOD OF PRODUCING A FINE GRAIN CASTING - An induction heated furnace assembly for producing a directionally solidified casting includes a susceptor that tailors strength of the magnetic field within the chamber to provide a desired grain structure in a completed cast part. The susceptor proportionally blocks portions of the magnetic field to provide different levels of magnetic stirring within the molten material at different locations within the furnace assembly stirring induced by the magnetic field is controlled and varied throughout the furnace assembly to create the desired grain structures in the completed cast article. | 09-23-2010 |
| 373154000 | Cooling | 1 |
| 20160113071 | ELECTROMAGNETIC INDUCTION FURNACE AND USE OF THE FURNACE FOR MELTING A MIXTURE OF METAL(S) AND OXIDE(S), SAID MIXTURE REPRESENTING A CORIUM - An electromagnetic induction furnace which is intended to melt at least one electrically conductive material, such as an oxide and/or a metal, and which includes at least one inductor having at least one turn and at least one cooling circuit suitable for cooling at least the inductor. Said furnace is characterized in that the heat-transfer fluid of at least one cooling circuit is supercritical CO2. The invention also relates to a method for operating the furnace and to the use thereof for melting a mixture of metals (steel, zirconium, etc.) with oxides (uranium UO2, zirconium, etc.), as well as concrete components, the mixture representing a corium. | 04-21-2016 |
| 373155000 | Lining | 1 |
| 20130235896 | METAL SECTOR HAVING CURVED OUTER SURFACE AND COLD CRUCIBLE INDUCTION MELTER HAVING THE SAME - The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an outer curved portion which forms an outer surface of the wall and is convex outward relative to the wall, an inner planar portion which forms an inner surface of the wall, and a side planar portion which connects the outer curved portion to the inner planar portion. | 09-12-2013 |
| 373156000 | Crucible | 2 |
| 20130223471 | METAL SECTOR HAVING CURVED INNER SURFACE AND COLD CRUCIBLE INDUCTION MELTER HAVING THE SAME - The present invention provides a metal sector and a cold crucible induction melter having the same. The cold crucible induction melter includes a wall formed of a plurality of metal sectors insulated by an insulator. Each metal sector includes an inner curved portion which forms an inner surface of the wall and is convex inward relative to the wall, an outer planar portion which forms an outer surface of the wall, and a side planar portion which connects the inner curved portion to the outer planar portion. | 08-29-2013 |
| 20140369375 | BOAT AND COIL DESIGNS - Disclosed are vessels used for melting material to be injection molded to form a part. One vessel has a body formed from a plurality of elongate segments configured to be electrically isolated from each other and with a melting portion for melting meltable material therein. Material can be provided between adjacent segments. An induction coil can be used to melt the material in the body. Other vessels have a body with an embedded induction coil therein. The embedded coil can be configured to surround the melting portion, or can be positioned below and/or adjacent the melting portion, so that meltable material is melted. The vessels can be used to melt amorphous alloys, for example. | 12-18-2014 |
| 373158000 | Cooling | 2 |
| 20130208756 | LOW TEMPERATURE MELTING FURNACE HAVING IMPROVED COOLING FLOW AND METAL SECTOR - A low temperature melting furnace having improved cooling flow includes a wall including a plurality of metal sectors, wherein a metal sector includes a first metal sector and a second metal sector, which are formed in one unit, and a cooling passage through which a cooling water flows is formed in each of the first metal sector and the second metal sector, the first metal sector and the second metal sector being connected to each other through a connection unit. | 08-15-2013 |
| 20130208757 | LOW TEMPERATURE MELTING FURNACE AND METAL SECTOR USING AN EXTERNAL COOLING PASSAGE - A low temperature melting furnace using an external cooling passage includes a wall including a plurality of metal sectors, each metal sector including a cooling passage formed along a longitudinal direction thereof, and an extension tube provided outwardly from the wall and connected to the cooling passage. | 08-15-2013 |
| 373159000 | Core-type (i.e., channel) | 5 |
| 20080253425 | CHANNEL ELECTRIC INDUCTOR ASSEMBLY - The present invention relates to an electric channel inductor assembly and method of forming an electric channel inductor assembly. A nonremovable, hollow, nonmagnetic channel mold is used to form the one or more flow channels of the assembly. A heated fluid medium is circulated in the hollow interior of the mold after the mold is situated in the assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the mold. | 10-16-2008 |
| 373161000 | Channel | 4 |
| 20150023384 | CHANNEL ELECTRIC INDUCTOR ASSEMBLY - The present invention relates to an electric channel inductor assembly. A nonremovable, hollow and nonmagnetic channel mold is used to form the one or more flow channels of the electric channel inductor assembly for electromagnetic circulation of a molten metal composition. A heated fluid medium is circulated in the hollow interior of the channel mold after the mold is situated in the inductor assembly to heat treat the refractory surrounding the exterior walls of the mold. After heat treatment a liquid is supplied to the hollow interior of the mold to chemically dissolve the channel mold prior to circulation of the molten metal composition. | 01-22-2015 |
| 20150131694 | INDUCTION SHIELD AND ITS METHOD OF USE IN A SYSTEM - Disclosed is an induction shield configured to substantially reduce emissions emitted from an induction heat source (e.g., coil) during use. The shield is positioned adjacent to a vessel (e.g., in an injection system) having a melting portion configured to receive meltable material to be melted therein and an induction heat source positioned adjacent the vessel configured to melt the meltable material received in the melting portion of the vessel. The shield may include a tube configuration configured to flow liquid therein to absorb heat emitted from the heat source. The tube configuration can comprise a single tube or multiple tubes. The shield can be positioned adjacent the induction source in a helical manner, for example, or at ends of the vessel. The shield can be used during melting of amorphous alloy and for forming a part. | 05-14-2015 |
| 20160381739 | Induction Furnace with Improved Circulation of Molten Metal - Disclosed is an induction furnace with improved circulation of the molten metal. The increased circulation and is achieved by positioning the greatest magnetic field strength in a location above one or more of the channel vertical legs. This arrangement is achieved by (a) using an angled core to position the field over the upper channel opening or (b) by positioning the upper channel leg opening by lowering the channel opening to within the magnetic core window. | 12-29-2016 |
| 373162000 | Lining | 1 |
| 20160040934 | CHANNEL INDUCTOR - A channel inductor of a channel induction furnace, the channel inductor comprising (a) a channel liner and (b) a back-up liner that supports the channel liner such that the integrity of the channel liner is not compromised during heat-up, dry-out, or operation of the channel induction furnace. | 02-11-2016 |
