Induction Heater Patents (Class 34/247)
  • Patent number: 9687290
    Abstract: A medical device includes an energy-generating unit configured to produce energy for conduction through tissue to treat tissue. Waste heat produced by the energy-generating unit during energy production is conducted to tissue to facilitate treating tissue.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: June 27, 2017
    Assignee: COVIDIEN LP
    Inventor: Craig A. Keller
  • Patent number: 9301659
    Abstract: A high efficiency evaporative toilet provides a unique air introduction and exposure/utilization system providing a unique air flow pattern that draws hot air over solids and then over liquids for absorption of moisture in three different technological options. An expansion of the liquid surface exposed to hot air is achieved through the use of wicking in the carousel and microwave applications. An air exhaust system provides a unique exhaust flow system that draws saturated air out of the system and is operated nonstop, using minimal amounts of electricity with the added option of being compatible with the use of solar panels.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: April 5, 2016
    Inventors: Jerry Duane Wilburg, Lawrence James Losoncy, Ted Knight
  • Patent number: 8945351
    Abstract: A method of removing organic components from a mixture containing organic and inorganic components which method involves providing an induction heated screw conveyor having an auger and passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor primarily from the center of the induction heated screw conveyor. The mixture is heated to a temperature that is sufficient to cause the organic components in the mixture to separate from the mixture as a vapor. The oxygen concentration in the induction heated screw conveyor is controlled so as to gasify the organic components. The gasified organic components are removed and the remaining inorganic components are collected.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 3, 2015
    Assignee: Heritage Environmental Services LLC
    Inventors: James E. Bratina, David Bowering, Anthony Kriech, Perry Eyster, Thomas Roberts
  • Patent number: 8945350
    Abstract: A method of separating a high boiling component from a mixture containing organic and/or inorganic boiling components which method involves providing an induction heated screw conveyor having an auger and passing the mixture through the induction heated screw conveyor while inductively heating the auger so as to heat the mixture in the induction heated screw conveyor. The mixture is heated to a temperature that is sufficient to cause the boiling component(s) to separate from the mixture as a vapor and the boiling component is removed from the induction heated screw conveyor.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 3, 2015
    Assignee: Heritage Environmental Services LLC
    Inventors: James E. Bratina, David Bowering, Perry Eyster, Thomas Roberts
  • Patent number: 8220178
    Abstract: A liquid solid separator utilizing inductive heating. An electrically conductive scroll conveyor is contained within a non-magnetic and non-conductive housing under vacuum. A moveable alternating electric coil is disposed around the housing. The scroll pulls the solids through the housing. Operation of the coil heats the scroll which heats the solids. The vacuum lowers the boiling point of the liquids, and they are vaporized at a relatively low temperature. The vapors are condensed and collected. Because of the low temperatures, the separated liquids are less likely to deteriorate during separation, facilitating recycling. Thermocouples and a computer track the internal temperature of the separator and coordinate the position of the coil to maintain the desired temperature. The housing is provided with a heat insulating outer layer and the interior of the scroll is pressurized with nitrogen. The separator surfaces exposed to the atmosphere are maintained at or below 150° F.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: July 17, 2012
    Inventor: Herman J. Schellstede
  • Publication number: 20110289790
    Abstract: An electrode material drying method and apparatus for drying electrode material are provided for achieving quality improvement of batteries. Electrode material portions containing a solvent are spaced apart from each other on the metal foil. An inductive coil that inductively heats the metal foil faces the metal foil. An amount of heat applied to an uncoated portion of the metal foil between the electrode material portions is reduced below that of a coated portion of the metal foil on which the electrode material portions are arranged. The heat evaporates the solvent in the electrode material portions by causing the metal foil to generate heat with inductive heating while moving the metal foil and the inductive coil relative to each other in an arrangement direction, that is, a direction in which the electrode material portions are arranged.
    Type: Application
    Filed: July 30, 2009
    Publication date: December 1, 2011
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Shigenori Kazama, Akikazu Itou, Tomoyuki Natsume, Yusuke Tateyama
  • Publication number: 20100226629
    Abstract: Described are roll-to-roll or reel-to-reel thermal or rapid thermal processing tools (reactors) are used to react a precursor layer on a continuous flexible workpiece. Variants of the reactors are described, including a reactor having multiple exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap; a reactor including multiple gas inlets and exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap; a reactor including multiple gas inlets and exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap; and a reactor including multiple gas inlets and exhaust outlets connected to a process gap of the reactor between an entrance opening and an exit opening of the process gap.
    Type: Application
    Filed: March 10, 2010
    Publication date: September 9, 2010
    Applicant: SOLOPOWER, INC.
    Inventors: Bulent M. Basol, Howard Zolla, Mustafa Pinarbasi, Gregory Norsworthy
  • Publication number: 20090282693
    Abstract: DC 5V shared with a shaver is inputted into a step-up circuit of a cleaner from a terminal of an AC adapter. When an oscillation circuit turns on/off an FET, the voltage is stepped up by using a choke coil, and the charge is accumulated in a capacitor. By using DC 24V of the stet-up result outputted from the capacitor, an electromagnetic induction heating circuit allows an FET to turn on/off the current flowing through a coil, the blade edge of the shaver is induction-heated. In this case, by applying a trigger pulse of the oscillation circuit through an inverter to the FET, the duty factor of the step-up circuit is high, and that of the electromagnetic induction heating circuit is low.
    Type: Application
    Filed: July 12, 2007
    Publication date: November 19, 2009
    Applicant: Panasonic Electric Works Co., Ltd.
    Inventors: Hiroyasu Kitamura, Seiichi Iwao
  • Publication number: 20090183384
    Abstract: A drying device has a heating coil 5a that heats by electromagnetic induction a material to be dried that is placed on a dried material-placement part, and an air blower 6 that sends air to the material to be dried. A heated member 22 heated by electromagnetic induction of the heating coil 5a and temperature detection means for detecting temperature of the heated member 22 are also provided. The heated member 22 is disposed at a position where the temperature thereof changes under the influence of the air from the air blower 6.
    Type: Application
    Filed: June 26, 2007
    Publication date: July 23, 2009
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventor: Hiroyasu Kitamura
  • Publication number: 20090113749
    Abstract: A liquid solid separator utilizing inductive heating. An electrically conductive scroll conveyor is contained within a non-magnetic and non-conductive housing under vacuum. A moveable alternating electric coil is disposed around the housing. The scroll pulls the solids through the housing. Operation of the coil heats the scroll which heats the solids. The vacuum lowers the boiling point of the liquids, and they are vaporized at a relatively low temperature. The vapors are condensed and collected. Because of the low temperatures, the separated liquids are less likely to deteriorate during separation, facilitating recycling. Thermocouples and a computer track the internal temperature of the separator and coordinate the position of the coil to maintain the desired temperature. The housing is provided with a heat insulating outer layer and the interior of the scroll is pressurized with nitrogen. The separator surfaces exposed to the atmosphere are maintained at or below 150° F.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 7, 2009
    Inventor: Herman J. Schellstede
  • Patent number: 7513061
    Abstract: There has been achieved a sludge dehydrating processor with less mechanical operation and with satisfactory dehydrating efficiency and heating efficiency. In order to process and convert sludge including an organic substance into solid fertilizer, a heating treatment zone for feeding and sterilizing an object to be treated and a dehydrating treatment/retrieving zone for separating water from the object to be treated and retrieving a treated object are provided. In the heating treatment zone, induction heating for efficiently heating the object to be treated without rotating a kiln body is introduced. In the dehydrating treatment/retrieving zone, a vortex air current producing mechanism for efficiently drying the object to be treated without rotating a dehydrating treatment chamber is introduced.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: April 7, 2009
    Assignees: Dai-Ichi High Frequency Co., Ltd., Bapic Incorporated
    Inventors: Kotaro Hirayama, Alden D. Pritchard
  • Patent number: 6713736
    Abstract: A cylindrical member including a cylindrical substrate and at least one coating layer thereon is formed through an applying step of applying a coating liquid on the cylindrical substrate and a drying step of drying the coating liquid that has been applied in the applying step by induction heating device to form the coating layer. The induction heating device is disposed in the interior of the cylindrical substrate. The induction heating device has an excitation coil for generating a magnetic flux in a direction perpendicular to the axial direction of the cylindrical member. The excitation coil is disposed along the inner surface of the cylindrical substrate.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: March 30, 2004
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Suzuki, Joji Nagahira, Hideyuki Nishida
  • Patent number: 6463677
    Abstract: Method and device for moisture profiling of fibrous material web to be dried in machines for manufacturing and/or refining of fibrous material web. Method includes subjecting fibrous material web to electromagnetic waves in the form of high-frequency waves. Device includes a fibrous material web support that supports travel of fibrous material web and a rotating cylinder. Rotating cylinder receives fibrous material web from fibrous material web support, and fibrous material web support is arranged outside fibrous material web in relation to the surface of the rotating cylinder. At least one electromagnetic wave transmitter is also included.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: October 15, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Robert Wolf, Markus Oechsle, Wolfgang Mayer, Roland Mayer, Frank Wegehaupt
  • Patent number: 5799410
    Abstract: The present invention provides a method and apparatus for separating volatile components from a base material. Specifically, the apparatus comprises a gas tight reactor, an induction heating vessel, a plate and evacuating means for evacuating volatile components from the reactor. The method comprises the steps of heating the material from which the volatile components are to be removed by induction heating in a gas tight vessel. More specifically, the area surrounding the object within the gas tight vessel is filled with metal filings which are then heated by induction heating. The metal filings thus inductively heat the object, causing any volatile components therein to be released. The volatile components are then evacuated from the gas tight vessel and the metal filings removed.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: September 1, 1998
    Assignee: Umwelt-Technics-Nord GmbH
    Inventor: Claus Gronholz
  • Patent number: 5768799
    Abstract: A process for the protective or decorative coating of a continuously moving metal sheet, in which the sheet, after having received its coating, is heated by electromagnetic induction in a tunnel oven in order to evaporate the solvents and to cure the coating. The solvents are continuously extracted from the chamber of the oven, wherein a gas at a temperature greater than the dew point of the solvents is injected into the oven and which is gastight and thermally insulated in order to keep the hot internal walls above this dew point.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: June 23, 1998
    Assignee: Stein Heurtey
    Inventors: Didier Delaunay, Hugues Amaury Jean Vialla
  • Patent number: 5598641
    Abstract: A raw sewage disposal apparatus for evaporating and drying raw sewage by heating. An evaporation container has a closed bottom portion and an opened upper portion for containing raw sewage thereon. A rotary holding structure holds an upper end of the evaporation container so as to permit horizontal rotation thereof. A covering supports the rotary holding structure and closes the opened upper portion of the evaporation container from the atmosphere. A frame capable of hanging the evaporation container supports the covering substantially horizontally. A driving device is provided for rotating the evaporation container, and an electromagnetic heating means is disposed close to a lower surface of the evaporation container and generates a high-frequency electromagnetic wave which is supplied to the evaporation container.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: February 4, 1997
    Assignee: Nikken Corporation
    Inventor: Mitsuhiro Kishi
  • Patent number: 5592753
    Abstract: A method for separating volatile components from a particulate base material by induction heating, which method comprises: heating a particulate base material in an induction heating vessel within a gas-tight reactor by induction heating; agitating said particulate base material by induction heated agitator means; introducing inert gas into said base material; and evacuating volatilized components from said particulate base material.A method for separating volatile components from a solid object by induction heating, which method comprises: positioning the solid object in an induction vessel of a gas-tight induction heating reactor, so that the object is surrounded by metal filings; heating said object surrounded by said metal filings by induction heating; injecting an inert gas into said metal filings; evacuating volatile components from within said reactor; and removing metal filings from the object.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: January 14, 1997
    Assignee: Umwelt-Technics-Nord GmbH
    Inventor: Claus Gronholz
  • Patent number: 5575082
    Abstract: A disposal apparatus according to a first aspect comprises an evaporation pipe communicating with a container for discharging vapor evaporated from raw sewage therein. A catalyst box accommodates a catalyst and communicates with the evaporation pipe. An ejector connects to the catalyst box for drawing air therefrom. A hot-air blower connects upstream to the catalyst box for heating flowing air, and an air supply unit supplies air to the ejector and the hot-air blower. A bypass pipe communicates between the ejector and the container. The disposal apparatus according to a second aspect comprises a heat-resistant airtight container for raw sewage, and an induction heating device disposed under the container. The heating device has a coil for generating a high-frequency electromagnetic wave to heat the container by induction. A rotatable stirrer and heat-holding balls are contained in the container. A stool communicates with the container through a valve mechanism.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: November 19, 1996
    Assignee: Nikken Corporation
    Inventor: Mitsuhiro Kishi
  • Patent number: 5504271
    Abstract: An oven for curing coating material applied to metal sheets (15) has a heating section (17), a cooling section (18) and an incinerator (19) for burning fumes from the coating material. The oven also as a conveyor for carrying sheets through it. The oven is associated with a sheet feeder (11), a coating apparatus (12), and a sheet stacker (13). In one embodiment, a conveyor (16) comprises an air bed (30) and two series of drive members (35) mounted on two endless chains (36). Air is ejected through a matrix of slots in the air bed (30) and thereby creates a cushion for supporting the sheets (15). The air is ejected in a direction which urges the trailing edges of the sheets into engagement with the drive members (35) and the drive members (35) propel the sheets through the oven. In another embodiment, a conveyor (200) comprises two series of drive members (205, 206) mounted on spaced apart chain (208, 209) and arranged in pairs for engaging the trailing and leading edges of metal sheets.
    Type: Grant
    Filed: August 24, 1993
    Date of Patent: April 2, 1996
    Assignee: CarnaudMetalbox plc
    Inventors: Michael Curtis, John Clarke, David J. Lusty, David L. Allinson, Geoffrey H. Rumble
  • Patent number: 5403540
    Abstract: A method is presented for uniformly heating plastically deformable material, which comprises particles of electrically conducting matter. This method comprises inducing an electric current, or causing hysteresis loss within such material, by using electromagnetic radiation with frequency between about 50 Hertz and about 10 MegaHertz, to cause heating of the material.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: April 4, 1995
    Assignee: Corning Incorporated
    Inventors: Kevin R. Brundage, David L. Hickman, David F. Thompson
  • Patent number: 5357687
    Abstract: A method and apparatus for drying or curing rigid cylindrical and flexible belt substrates includes: a curing chamber defining a central axis; a support structure selectively receivable within the curing chamber and including a support for at least one substrate along the central axis which rotates the at least one substrate about the central axis; a curing mechanism surrounding the at least one substrate within the curing chamber for expelling temperature controlled low velocity air toward the at least one substrate as the at least one substrate rotates about the central axis without axial movement relative to the curing chamber; and inductive coils surrounding at least a portion of the at least one substrate within the curing chamber for indirectly heating the at least one substrate. Preferably, the at least one substrate is dried/cured by combination of indirect RF induction heating at the same time or prior to low velocity air impingement.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: October 25, 1994
    Assignee: Xerox Corporation
    Inventor: Eugene A. Swain
  • Patent number: 5325601
    Abstract: A method and apparatus for drying and curing a coating which as been applied in liquid form to a metal substrate. The process and apparatus include a precuring or drying of the coating by rapidly heating the sheet in an electromagnetic induction coil to volatilize solvents in the coating. The precured sheets are then immediately conveyed to a conventional convection oven for further heating the sheets by baking the sheets at a temperature and for a duration in accordance with the drying and curing specifications of the coating manufacturer. The induction coil is designed to heat the sheet metal in a narrow transverse band as the sheet moves through the induction coil. The power supply to the induction circuit is designed to permit the induction coil to be turned on under varying load.
    Type: Grant
    Filed: January 5, 1993
    Date of Patent: July 5, 1994
    Assignee: Alltrista Corporation
    Inventors: Donald L. Brownewell, Louis S. Comadena, Dwight B. Raddatz
  • Patent number: 5323544
    Abstract: A technique is disclosed for drying and curing a liquid film applied to a former which is reactive to radio frequency energy so as to generate heat. A liquid film, such as latex, is applied to a metallic former which is then disposed in the proximity of an applicator which propagates radio frequency energy. In response, by a process of induction the former generates heat and thereby advantageously dries said film in an inside-to-outside manner. A superior product is produced which is substantially free of defects and blemishes.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: June 28, 1994
    Assignee: Ansell Incorporated
    Inventor: John H. Osgood
  • Patent number: 5321896
    Abstract: A method and apparatus for drying and curing a coating which as been applied in liquid form to a metal substrate. The process and apparatus include a precuring or drying of the coating by rapidly heating the sheet in an electromagnetic induction coil to volatilize solvents in the coating. The precured sheets are then immediately conveyed to a conventional convection oven for further heating the sheets by baking the sheets at a temperature and for a duration in accordance with the drying and curing specifications of the coating manufacturer. The induction coil is designed to heat the sheet metal in a narrow transverse band as the sheet moves through the induction coil. The power supply to the induction circuit is designed to permit the induction coil to be turned on under varying load.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: June 21, 1994
    Assignee: Alltrista Corporation
    Inventors: Donald Brownewell, Louis S. Comadena, Dwight B. Raddatz