Core Or Coil Structure Patents (Class 219/630)
  • Patent number: 10560984
    Abstract: Aspects and embodiments of inductive heating systems are described. In one embodiment, the system includes a manifold assembly with number of manifold pipes that are connected to a manifold plate. An inductive coil is around the manifold assembly. A control circuit is electrically coupled to the inductive coil and to a power supply to inductively heat the manifold pipes of the manifold assembly using the inductive coil.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: February 11, 2020
    Assignee: HYDRA HEATING INDUSTRIES, LLC
    Inventors: Michael Hoffman, Shuping Wang, Anthony S. Deese
  • Patent number: 10485936
    Abstract: Presented herein is a system for heating fluid, which, in certain embodiments, includes a fluid separator, a conduit, and a plurality of inductors. The system demonstrates a single flow path without compromising advantages of the existing blood warmers, such that the heat exchanger would not experience stagnant flow that may cause overheating of a local flow path.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: November 26, 2019
    Assignee: Belmont Instrument, LLC
    Inventors: John J. Landy, III, George G. Brusard, Tristan Dion
  • Patent number: 10443889
    Abstract: A super-high-efficiency induction hot water heater comprises: an external tank filled with water therein; an induction work coil provided in the center of the external tank; a plurality of internal tanks having walls formed from induction conductor heating plates, and into which water flows, and arranged around the induction work coil by being spaced from the induction work coil; an alternating current/direct current conversion unit receiving an alternating current and converting the same into a direct current; and a high frequency generation unit generating a high frequency by receiving the direct current of the alternating current/direct current conversion unit, and providing the high frequency to the induction work coil, and allowing the water filled inside the external tank and the water flowing inside the internal tanks to be heated when the induction conductor heating plates are heated by the induced high frequency current.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: October 15, 2019
    Inventor: Hae Jin Kwun
  • Patent number: 10350716
    Abstract: A PIP Trace Heating Connection Assembly A pipe-in-pipe (PIP) trace heating connection assembly in the annulus of a PIP pipeline comprising at least first and second conjoined PIP stalks having inner and outer pipes and the annulus thereinbetween, the first PIP stalk having a first trace heating cable (22) located along its inner pipe, and the second PIP stalk having a second trace heating cable (24) located along its inner pipe, the first and second heating cables have cable ends and heating cable terminals on the cable ends, and a flexible intermediate connecting cable (40) having first and second intermediate terminals secured to, the heating cable terminals of the first and second trace heating cables respectively to form a secured electrical pathway between the first and second trace heating cables.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: July 16, 2019
    Assignee: TECHNIP FRANCE
    Inventors: Tomasz Tkaczyk, Martin Chalmers
  • Patent number: 10237926
    Abstract: An induction heater having inner and outer chamber cylinders connected in an air tight manner to a base and cover with an inner chamber being formed within the inner chamber cylinder and an outer chamber being formed between the inner and outer chamber cylinders, a heat exchange core disposed in the inner chamber, and an induction heater coil disposed in the outer chamber extending around the inner chamber cylinder. A flow path is provided from a cool air inlet in the base, along the outer chamber, into the inner chamber and through the inner chamber and core to a heated air outlet in the base in a counterflow direction relative to the flow along the outer chamber. The heater is especially well suited for use in convective soldering and rework apparatus.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 19, 2019
    Assignee: PACE, INC.
    Inventors: Thomas Wayne Miller, Ramgopal Nair
  • Patent number: 10206249
    Abstract: This invention provides a fluid heating device that is free from breakage even though a conductor tube is transformed due to being heated. Concretely, this invention is provided with an electrical connecting member that constitutes a short circuit by electrically connecting each of required portions of the conductor tube, and uses the electrical connecting member that is transformable in accordance with a transformation resulting from a temperature change of the conductor tube.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: February 12, 2019
    Assignee: TOKUDEN CO., LTD.
    Inventors: Toru Tonomura, Yasuhiro Fujimoto, Sachio Tamaki
  • Patent number: 10176921
    Abstract: The present invention provides a method for producing a rare earth sintered magnet and a molding device therefor that can stably mold molded bodies with less variation in unit weight. The method includes: 1) preparing a slurry including an alloy powder and a dispersion medium, the alloy powder containing a rare earth element; 2) disposing an upper punch and a lower punch in respective through holes provided in a die, thereby preparing a plurality of cavities; 3) applying a magnetic field in each of the cavities by an electromagnet in a direction substantially parallel to a direction in which at least one of the upper punch and the lower punch is movable, and then supplying the slurry into the plurality of cavities; 4) producing a molded body of the alloy powder in each of the cavities by press molding in the magnetic field; and 5) sintering the molded body.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: January 8, 2019
    Assignee: HITACHI METALS LTD.
    Inventors: Takashi Tsukada, Takuya Nansaka, Satoru Kikuchi
  • Patent number: 9994512
    Abstract: A processes is for purifying an amine compound from a feed solvent which includes an amine salt of the amine compound. The process includes heating the feed solvent in a single stage evaporator of a reclaimer at a reduced operating pressure by feeding the evaporator with a constant amount of thermal energy; and evaporating the amine compound to purity the amine compound from the feed solvent.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 12, 2018
    Assignee: HTC Purenergy Inc.
    Inventors: Ahmed A. Aboudheir, Walid H. Elmoudir
  • Patent number: 9989245
    Abstract: To provide a superheated steam treatment apparatus capable of efficiently treating an object by superheated steam containing a high concentration of hydroxyl radicals. The superheated steam treatment apparatus includes an induction heating unit 4 configured to generate superheated steam by induction heating saturated stream, a treatment chamber 5 configured to allow the superheated steam generated by the induction heating unit 4 to be introduced thereinto, and a discharge treatment unit 6 located in the treatment chamber 5 and configured to treat the introduced superheated steam by discharge.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: June 5, 2018
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Naoto Fujimura
  • Patent number: 9848464
    Abstract: The application relates to an induction heating device having a housing and a fluid duct. The fluid duct is arranged in the housing and has a fluid inlet and a fluid outlet. Inside the housing is an induction element which generates an alternating magnetic field and which is separated from the fluid duct in a sealed manner by at least one wall. The device also includes at least one metallic areal heating element arranged in the fluid duct which can be heated by the alternating magnetic field.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: December 19, 2017
    Assignees: MAHLE INTERNATIONAL GMBH, BEHR-HELLA THERMOCONTROL GMBH
    Inventors: Michael Kohl, Karl-Gerd Krumbach, Karl Lochmahr, Wolfgang Seewald, Olivier Schunck, Dirk Nagel, Lars Heeper, Matthias Stallein, Michael Steinkamp, Karsten Marquas, Volker Dicke
  • Patent number: 9655171
    Abstract: A heater with a housing with a fluid channel, disposed therein, with a fluid inlet and a fluid outlet, whereby a coil, which generates an alternating magnetic field and is separated sealed from the fluid channel by a coil housing, is provided in the housing, whereby furthermore at least one metallic flat heating element is provided, which can be heated by the alternating magnetic field. The at least one flat heating element is disposed in the fluid channel, whereby the fluid channel is divided at least into a first channel and a second channel. Walls bounding the channels are formed by the coil housing and/or by a flat heating element.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: May 16, 2017
    Assignees: MAHLE International GmbH, Behr-Hella Thermocontrol GmbH
    Inventors: Wolfgang Seewald, Karl-Gerd Krumbach, Michael Kohl, Matthias Stallein, Lars Heeper, Karsten Marquas
  • Patent number: 9253824
    Abstract: A small steam generator uses a cylindrical steam generation vessel having a steam generation portion formed to store an amount of water for generating steam and a steam passage portion formed on the upper end of the steam generation portion for spouting steam generated in the steam generation portion. A heater element is disposed within the steam generation vessel, and an induction heating coil is wound around the periphery of the steam generation vessel for energizing the heater element. The heater element is energized by supply of electric power to the heating coil so that steam generated by boiling of the water in the steam generation portion spouts upward from the steam passage.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: February 2, 2016
    Assignees: HOSHIZAKI DENKI KABUSHIKI KAISHA, SETA GIKEN CO., LTD.
    Inventors: Kazuhiko Inoue, Eiji Suzuki, Shinichi Kaga, Yukimasa Takeda, Akihiko Hirano, Hiroshi Kai, Masao Sanuki, Motohiko Mouri, Yoshitaka Uchihori
  • Patent number: 9226617
    Abstract: A bottle assembly is described having a battery-powered heated elongated spout. A heater embedded along the length of the spout is typically activated by a switch provided on the assembly. A LED indicator is also typically provided to indicate when the heater is activated. The LED can also function as a battery level indicator that changes color when the battery packs level of charge is depleted to a predetermined level. A charging port is provided through which the battery pack can be recharged using a suitable charger.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: January 5, 2016
    Inventor: John Ondracek
  • Patent number: 9163855
    Abstract: The invention relates to an apparatus including an induction device (110) for heating water in a channel and supplied by a high-frequency generator (113), and an electromagnetic scale-preventative device (120) upstream from the heating circuit (110) and powered by a frequency generator (113). A channel sensor (130) detects a request for water and a control circuit (150) receives the water request signal (Sec) from the sensor (130) so as to control the operation of the heating circuit (110) and of the scale-preventative device (120), adjusting the power thereof in order to adjust the temperature and to stop the operation thereof.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: October 20, 2015
    Inventor: Dominique Akel
  • Patent number: 9006624
    Abstract: An induction heating system includes an induction heating coil operable to inductively heat a load with a magnetic field, a detector for detecting a current feedback signal corresponding to a current flowing through the induction heating coil, and a controller for detecting a switching transient in the current feedback signal and determining a resonant frequency of the system based on a characteristic of the switching transient.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: April 14, 2015
    Assignee: General Electric Company
    Inventors: Daniel Brosnan, Mariano Filippa, Kresimir Odorcic
  • Patent number: 8953932
    Abstract: Disclosed is an apparatus for altering the temperature of a liquid, comprising: a pipe having a first end for receiving a liquid and a second end for discharging the liquid; and a thermal element for altering the temperature of the liquid, wherein the thermal element is located in the pipe such that the volume available for the liquid within the pipe is in the range 0 to 20% of the pipe volume.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 10, 2015
    Inventor: Michael Karl William Hughes
  • Publication number: 20150025515
    Abstract: An induction coil vapor generator is provided that may include any of a number of features. One feature of the vapor generator is that it can inductively generate high quality condensable vapor. The vapor generator can comprise an outer assembly that supports a coil wire, and an inner assembly disposed in the outer assembly. The inner assembly can house a plurality of micro-tubes configured to be inductively heated by the coil wire to convert a fluid to condensable vapor. The generator can be disposed in a medical device to treat tissue with vapor. One feature of the medical device is that it can apply condensable vapor energy to tissue, such as a prostrate, to shrink, damage, denaturate the prostate. Methods associated with use of the vapor generator are also covered.
    Type: Application
    Filed: April 3, 2013
    Publication date: January 22, 2015
    Inventors: Michael Hoey, Roger Noel Hastings, Stephanos Paulos
  • Publication number: 20140374409
    Abstract: A heater with a housing with a fluid channel, disposed therein, with a fluid inlet and a fluid outlet, whereby a coil, which generates an alternating magnetic field and is separated sealed from the fluid channel by a coil housing, is provided in the housing, whereby furthermore at least one metallic flat heating element is provided, which can be heated by the alternating magnetic field. The at least one flat heating element is disposed in the fluid channel, whereby the fluid channel is divided at least into a first channel and a second channel. Walls bounding the channels are formed by the coil housing and/or by a flat heating element.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventors: Wolfgang SEEWALD, Karl-Gerd KRUMBACH, Michael KOHL, Matthias STALLEIN, Lars HEEPER, Karsten MARQUAS
  • Patent number: 8803044
    Abstract: A dialysis fluid heating system includes a plurality of conductive tubes; first and second end caps located at first and second ends of the tubes, respectively, the first end cap including a dialysis fluid inlet and a dialysis fluid outlet, the end caps and the tubes configured such that dialysis fluid can flow from the fluid inlet of the first end cap, through at least one first tube to the second end cap, and through at least one second tube back to the first end cap; a conductive wire wound around an outside of the conductive tubes; and electronics configured to supply power to the conductive wire, the wire forming a primary coil of a transformer, the tubes forming a secondary coil of the transformer.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: August 12, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Richard E. Kienman, Dan Roush, John E. Steck, James S. Slepicka, Atif M. Yardimci, Gideon Hecht, Jennifer S. Lindsay, George F. Bobart, Donald D. Busby, William Chan, Yuanpang S. Ding, Amy L. Twining, Douglas W. Reitz, Andrey Kopychev, Mehmet B. Ozer, Brian C. Lauman
  • Publication number: 20130313249
    Abstract: Method for regulating the temperature of an automotive vehicle component comprising an inductive system for charging an electric battery, the inductive charging system including a coil allowing a magnetic energy to be converted into an electrical energy for charging the battery, the method involving a step of using the thermal energy produced in the coil via the Joule effect to heat the automotive vehicle component, notably a cabin of an automotive vehicle.
    Type: Application
    Filed: December 20, 2011
    Publication date: November 28, 2013
    Applicant: Renault S.A.S.
    Inventors: Samuel Cregut, Serge Loudot
  • Patent number: 8450666
    Abstract: A water boiling device includes a heat tank unit received in a machine body, a high frequency induction heater, and a heat pipe unit. The heat tank unit includes first and second heating tanks in communication with each other. Outside water can flow into the first and second heating tanks. The high frequency induction heater includes a heat pipe induction coil and first and second induction coils. The heat pipe unit includes first and second heating pipes. An upper section of each heating pipe is received in one of the heating tanks, and a lower section of each heating pipe extends out of the heating tanks and is inserted into the heat pipe induction coil. The first and second heating tanks will heat up to heat the water in the first and second heating tanks when a high frequency current is passed through the heat pipe induction coil and first and second induction coils.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: May 28, 2013
    Inventors: Shun-Chi Yang, Mao-Hsiung Yang, Tsung-Chuan Yang, Fang-Ming Wu, Cheng-Yen Wu
  • Publication number: 20130092681
    Abstract: A heat generator comprises a rotatable magnetic field and a heat exchanger (26) including a fluid path (45) for water set into an electrically conducting disc. An entry to and exit from the fluid path is provided for the water. Heat generated by rotating the magnetic field is transferred to water passing though the fluid path in the electrically conducting disc.
    Type: Application
    Filed: June 16, 2010
    Publication date: April 18, 2013
    Inventor: Douglas Nangle
  • Patent number: 8373103
    Abstract: An apparatus for heating and impelling air comprises a housing, an air heating impeller assembly, and a magnetic assembly. The impeller assembly may impel air through the housing and heat the air, and may include a support shaft, a plurality of annular disks positioned along the support shaft and each having a central aperture through which the support shaft extends. The impeller assembly includes paddles radiating outwardly from the shaft, and each of the paddles is positioned between the shaft and the disks to space at least one disk from the support shaft to form an air path therebetween. The paddles space the disks in an axial direction to form gaps therebetween to form an air path between the disks. The magnetic assembly applies a magnetic field of adjustable intensity to the disks to cause heating of the disks.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: February 12, 2013
    Inventor: George Waldner
  • Patent number: 8269153
    Abstract: A water boiler includes a water storage tank, a heater, and a heat pipe unit. The water storage tank includes a heating room, an outer water storage room, and an inner water storage room between the heating room and the outer water storage room in a radial direction. Outside water flows from an inlet pipe to the outer water storage room, and water in the outer water storage room flows into the inner water storage room and the heating room for storage. The heater includes an induction coil. The heat pipe unit includes a plurality of heat-transfer pipes. An upper segment of each heat-transfer pipe is arranged in the heating room, while a lower segment of each heat-transfer pipe is received in the induction coil. When the induction coil turns ON, the heat-transfer pipes are heated to heat the water in the heating room.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: September 18, 2012
    Inventors: Shun-Chi Yang, Mao-Hsiung Yang, Tsung-Chuan Yang, Fang-Ming Wu, Cheng-Yen Wu
  • Publication number: 20110315676
    Abstract: A water boiler includes a water storage tank, a heater, and a heat pipe unit. The water storage tank includes a heating room, an outer water storage room, and an inner water storage room between and spaced from the heating room and the outer water storage room in a radial direction. Outside water flows from an inlet pipe to the outer water storage room, and water in the outer water storage room flows into the inner water storage room and the heating room for storage. The heater includes an induction coil. The heat pipe unit includes a plurality of heat-transfer pipes. An upper segment of each heat-transfer pipe is arranged in the heating room, while a lower segment of each heat-transfer pipe is received in the induction coil. When the induction coil turns ON, heat-transfer pipes are heated to heat the water in the heating room.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 29, 2011
    Inventors: Shun-Chi Yang, Mao-Hsiung Yang, Tsung-Chuan Yang, Fang-Ming Wu, Cheng-Yen Wu
  • Publication number: 20110180531
    Abstract: Heating the liquid at a point substantially close to point of use, by utilizing the heat generated in the electromagnetic induction process. The induction heating apparatus may be made of a flexible and non-conducting material comprising induction coil and the apparatus may be wrapped around the liquid carrying structure (e.g., pipe) at a point, which may be substantially close to a point of usage (liquid delivery point or an outlet point). The liquid passing through the liquid carrying structure may be heated as it passes through the portion of the liquid carrying structure around where the induction heating apparatus is wrapped. In other approach, the induction heating apparatus may be placed inside the shower head and faucet and the parameters such as temperature, flow rate, pressure, and steam generating may be controlled using an electronic control module.
    Type: Application
    Filed: January 25, 2010
    Publication date: July 28, 2011
    Inventor: Sunil Shinha
  • Publication number: 20110163087
    Abstract: An electromagnetic induction heating unit is configured to heat at least one of a refrigerant tube and a member in thermal contact with a refrigerant that flows through the refrigerant tube. The electromagnetic induction heating unit includes a coil disposed in a vicinity of the refrigerant tube and a tube temperature detector in contact with an external surface of the refrigerant tube. A surface of the tube temperature detector in contact with the refrigerant tube has substantially the same shape as a contacted portion of the external surface of the refrigerant tube.
    Type: Application
    Filed: September 14, 2009
    Publication date: July 7, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Masahiro Wakashima, Satoshi Asada
  • Patent number: 7921507
    Abstract: A heating apparatus and a cleaner having the same are disclosed. The heating apparatus includes a heating casing to receive water from a water container and convert the water into steam, wherein the heating casing comprises a plurality of ribs and each successive rib comprises a space to collect water and convert the water into steam. The cleaner includes a cleaner body in which a water container is detachably mounted, a nozzle assembly rotatably connected to a lower part of the cleaner body and including a nozzle to inject steam, and a heating apparatus that includes a heating casing to receive water from the water container, convert the water into steam, and supply the steam to the nozzle assembly, wherein the heating casing includes a plurality of ribs and each successive rib includes a space to collect water and convert the water into steam.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: April 12, 2011
    Assignee: Samsung Gwangju Electronics Co., Ltd.
    Inventors: Jang-keun Oh, Hyoun-soo Kim
  • Patent number: 7731689
    Abstract: A medical fluid machine includes (i) a pump that pumps a medical fluid and (ii) a heater that heats the medical fluid, the heater including an electrically insulative housing, at least one flat sheet of electrically conductive material suitable for contacting the medical fluid, the sheet disposed within the insulative housing, the sheet defining a flow path for the medical fluid in which the medical fluid changes direction at least one time, a primary coil of a transformer located outside the insulative housing, the primary coil configured to induce a current into the at least one conductive sheet, creating heat that may be transferred to the medical fluid.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: June 8, 2010
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Michael R. Prisco, Yuanpang S. Ding, Tan-Cheng Chou, Tom Johnson
  • Patent number: 7592572
    Abstract: A cartridge heater, especially a compressed cartridge heater (1) has at least one heating coil (8, 9), which is arranged exposed in a metallic tubular body (2) and is embedded in a granulated insulating material. The ends of heating coil portions (8, 9) are provided with terminals (7) projecting from the tubular body (2). To make it possible to manufacture such a cartridge heater with minimal effort in terms of labor and material, a flat insulating plate (10) coordinated in its width with the internal diameter of the tubular body (2) is provided as the carrier. The heating coils (8, 9) extend along the two flat sides of the insulating plate (10) and the two heating coils (8, 9) are connected to one another by a coil section (12, 12?), which is led around a deflecting edge (27) of the insulating plate (10).
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: September 22, 2009
    Assignee: Türk + Hillinger GmbH
    Inventor: Andreas Schlipf
  • Publication number: 20090223948
    Abstract: A heater includes a first rotor rotatably mounted to a support structure, and a first magnet attached to the first rotor. A second rotor is rotatably mounted to the support structure to be substantially coaxial with the first rotor, and a second magnet is attached to the second rotor. A tank that is at least partially formed from an electrically conductive material is disposed between the first rotor and the second rotor. A drive mechanism is configured to rotate the first rotor in a first direction and the second rotor in a second direction opposite the first direction.
    Type: Application
    Filed: March 6, 2008
    Publication date: September 10, 2009
    Inventor: Randy Hess
  • Patent number: 7554064
    Abstract: An electrical resistance heater element has a metal tube containing an electrical resistance coil that is electrically insulated from the metal tube by magnesium oxide powder, the coil being bonded to a conductor pin that protrudes from an open end of the tube. The powder is sealed against moisture by placing at least the open end of the tube within a chamber and immersing the open end within liquid silicone. A gas is pumped into the chamber to pressurize the silicone sufficiently to cause some of it to encroach into the powder through the open end of the tube. The heater element is installed within a heat exchanger with the silicone remaining uncured.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: June 30, 2009
    Assignee: Gaumer Company, Inc.
    Inventors: Jackie G. Fannin, Jack L. McClanahan
  • Publication number: 20090159591
    Abstract: A superheated steam generator, capable of generating superheated steam which exceeds 400° C. even if a litz wire is adopted as an induction heating coil, and capable of being used as a middle-sized or small-sized home-available apparatus, is provided. The invention provided a superheated steam generator in which induction heating elements 22 which generates heat by electromagnetic induction are housed in a heat-resistant container 21, a hose 24 which allows cooling water to pass therethrough is wound around an outer peripheral surface of the heat-resistant container, a water supply unit 4 for the cooling water is connected to one end of the hose, the other end of the hose is connected to a steam inlet 21A of the heat-resistant container, an induction heating coil 25 is mounted on an outer peripheral surface of the hose, a high-frequency power supply unit 3 is connected to the induction heating coil.
    Type: Application
    Filed: August 21, 2008
    Publication date: June 25, 2009
    Inventors: Hideo Tomita, Takeshi Maruyama, Shinzo Yoshimura
  • Patent number: 7372007
    Abstract: An electrical heater bundle has heater elements, each including a metal tube, an electrical resistance coil within the tube, a conductor pin connected to the coil and protruding from an end of the tube, and an electrical insulation powder surrounding the coil within the tube. A conical cavity is located in the insulation powder at the end of the tube, the cavity extending from an inner diameter of the tube to the conductor pin. The cavity is filled with an epoxy that is cured in place. The insulation powder may have an infiltrated layer at the cavity that is an uncured liquid silicone. The heater elements are mounted to a header plate, and the elements associated with the three different phases of electrical power may protrude past the header plate at different distances.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: May 13, 2008
    Assignee: Gaumer Company, Inc.
    Inventors: Jack L. McClanahan, Craig S. Tiras, Jackie G. Fannin
  • Patent number: 7326891
    Abstract: A steam generating apparatus, and an oven including the same. The apparatus includes a water tank adapted to enable convenient cleaning, and is adapted to heat water in the water tank via an induction heating method to generate steam rapidly. The water tank is provided with a steam discharging pipe. The apparatus further includes an induction coil assembly, an induction heating member fitted to the water tank such that it is located near the induction coil assembly, a barrier inserted into the water tank such that only a small amount of water is directly heated by the induction heating member which generates heat by the induction coil assembly, and a cover closing an upper portion of the water tank. The steam discharging pipe is connected with a steam supplying pipe which communicates a cavity with a cooking compartment to supply steam from the apparatus to the cooking compartment.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: February 5, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Han Jun Sung, Dae Sung Han, Yong Hyun Kwon, Chul Kim, Tae Uk Lee, Seong Deog Jang, Han Seong Kang
  • Patent number: 7323667
    Abstract: The device and method are used for controlling eddy currents generated by an electro-magnetic heater having at least one magnetic field producing element. To control the heater, a source of heat is used to heat a Curie temperature material, located adjacent to the magnetic field producing element. This prevents heat from being generated in the object being heated.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 29, 2008
    Assignee: Pratt & Whitney Canada Corp.
    Inventor: Kevin Allan Dooley
  • Patent number: 7211773
    Abstract: A conveyance apparatus comprises a transformer having a core, a primary coil connected to an alternate power source and a secondary coil connected to an output coil, a holding section including a conductive member for heating fluid by high frequency induction heating based on magnetic field generated by the output coil, the holding section for supplying fluid heated by the conductive member and for holding a heating object by the fluid, wherein, the secondary coil is capable of relatively moving to or relatively swinging on the core while the holding section moves.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: May 1, 2007
    Assignee: Konica Minolta Opto, Inc.
    Inventors: Shigeru Hosoe, Takemi Miyazaki
  • Patent number: 7145114
    Abstract: A superheated vapor generator has a tubular, vertically extending container with closed ends. A high frequency induction heating coil is wound around the container. A heating medium is placed in the container and is made from material heatable by electromagnetic conduction. A number of vapor passages extend through the heating medium longitudinally of the tubular container. The tubular container has a heating section with the heating coil and a non-heating section under the heating section. Material for superheated vapor is supplied through a supply passage from a position above the heating medium to the non-heating section. A passage structure is provided in the non-heating section for flow of material supplied through the supply passage therethrough into the vapor passages of the heating medium. A discharge passage is formed above the heating medium. A discharge passage is formed above the heating medium for discharging superheated vapor.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: December 5, 2006
    Assignee: Pai Corporation
    Inventors: Toshio Wakamatu, Tsutomu Kanou, Masanori Ogihara
  • Patent number: 7115845
    Abstract: A superheated steam generator of an electromagnetic induction type includes: a conduit, which provides a passageway of generated steam; a superheating tank, which is part of the conduit midway through the conduit; and a coil, which is disposed around the superheating tank and is connected to a high-frequency AC power supply, the superheated steam generator further including a magnetic body, disposed inside the superheating tank, which is in contact with the steam in the passage of the steam. According to this construction, superheated steam can be produced more efficiently. In addition, the temperature inside the tank can be increased and decreased more gradually.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: October 3, 2006
    Inventors: Masami Nomura, Masaaki Nomura, Yuzuru Marukuni
  • Patent number: 7069640
    Abstract: A method of manufacturing a coil unit includes the first step of disposing a coil between a first frame and a second frame, the second step of pouring liquid resin into between the first frame and the second frame with the coil disposed therebetween, and the third step of curing the liquid resin to thereby fix the first frame, the second frame and the coil to one another.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: July 4, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Fuseya, Hajime Sekiguchi
  • Patent number: 7002119
    Abstract: The present invention relates to the field of electromagnetic induction and short circuit heating. The iron core in the heating device of present invention, which is in the form of EI, is completely made of multi-layered silicon steel sheets to form a closed three-phase magnetic loop; each of the three core legs of the EI-formed iron core is coiled with a winding, i.e. the three-phase primary winding; the iron core and the three-phase primary windings are all enclosed in a metal shell, which is the secondary side that surrounds the iron core and the primary winding of each phase along the closed three-phase magnetic loop to constitute the main heating body of this heating device, in addition to act as a protecting shell and a radiator for the iron core and the three-phase primary winding.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: February 21, 2006
    Inventor: Ronghua Wu
  • Patent number: 6907796
    Abstract: The invention relates to a temperature-controlled injector for a chemical analysis unit, in particular a gas chromatograph, comprising an injector tube, which can be received by a receiving tube, having a cooling system, which surrounds the receiving tube, through which coolant can flow, which has coolant connections and which is designed as a metallic tube coil, and a resistance heating system for the injector tube, in which injector the receiving tube consists of a material of good thermal conductivity, is electrically insulating towards the outside, and the tube coil rests on the receiving tube, has an electrical resistance which is sufficient to rapidly heat the injector tube and can be acted on by current via electrical connection pieces.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 21, 2005
    Assignee: Gerstel Systemtechnik GmbH & Co. KG
    Inventors: Ralf Bremer, Bernhard Rose
  • Patent number: 6781100
    Abstract: A method and apparatus for temperature control of an article is provided that utilizes both the resistive heat and inductive heat generation from a heater coil.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: August 24, 2004
    Assignee: Husky Injection Molding Systems, Ltd.
    Inventors: James Pilavdzic, Stefan Von Buren, Valery G. Kagan
  • Patent number: 6681998
    Abstract: An aerosol generator includes an induction heating arrangement to vaporize fluid contained in a fluid passage. The vapor is then expelled from the fluid passage into the air creating a mist that forms the aerosol. The aerosol generator includes an excitation coil that inductively heats a heating element which transfers heat to the fluid in the fluid passage. The fluid passage can be located in a metal tube which can be removably mounted in the aerosol generator.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: January 27, 2004
    Assignee: Chrysalis Technologies Incorporated
    Inventors: David E. Sharpe, John L. Felter
  • Patent number: 6674055
    Abstract: A method of heating water comprises providing a helical passageway in juxtaposition a metal core rod and a coil through which an alternating current is passed. The alternating current generates an alternating longitudinal magnetic field that passes through the metal core rod and gives rise to eddy currents that generate heat. Water flowing along a helical passageway is heated and at the same time the water is magnetized as it cuts across lines of magnetic force of the alternating longitudinal magnetic field. A magnetized water generator for uses with the method comprises two bulkheads, a coil, a metal core rod and an outer tube. The core rod is disposed within the outer tube to create a helical passageway. The outer tube and core rod are disposed within the coil. A bulkhead is disposed on each end of the outer tube. Water enters the helical passageway through the water inlet in one end bulkhead and out of the helical passageway via a water outlet on the other end bulkhead.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: January 6, 2004
    Inventors: Shou Jun Zhang, Zheng Qing Yang, Qiang Hua Zhao
  • Publication number: 20030121908
    Abstract: An apparatus for heating a flowable material comprises a core having a passageway formed therein for the communication of the flowable material, and an electric element coiled in multiple turns against the core in a helical pattern. The electric element, in use, heats the core both resistively and inductively. The electric element has no auxiliary cooling capacity. The electric element may be installed against the outside of the core, with an optional ferromagnetic yoke installed over it, or it may be installed against the inside of the core, embedded in a wear-resistant liner. The yoke and liner may be metallic material deposited such as by hot-spray technology and finished smooth.
    Type: Application
    Filed: December 21, 2002
    Publication date: July 3, 2003
    Applicant: Husky Injection Molding Systems LTD
    Inventors: Jim Izudin Pilavdzic, Stefan Von Buren, Valery G. Kagan
  • Publication number: 20030066829
    Abstract: A high-frequency induction-heating device preferably comprises an introduction part which introduces a gas to be treated; a pyrolysis part which pyrolyzes the gas to be treated; an induction heating coil provided around the outer circumference of the pyrolysis part so as to surround and heat the pyrolysis part, and an exhaust part which exhausts the gas having been decomposed in the pyrolysis part; wherein the pyrolysis part comprises a cylindrical body both ends of which are sealed, slits which communicate the interior with the exterior of the cylindrical body provided on the outer surface of the cylindrical body, and a communication pores to be communicated with an introduction tube which introduces the gas to be treated into the interior of the cylindrical body.
    Type: Application
    Filed: July 19, 2002
    Publication date: April 10, 2003
    Applicant: Ken KANSA
    Inventors: Ken Kansa, Yoshihide Mukouyama, Masatoshi Matsuba
  • Publication number: 20030062364
    Abstract: A heating faucet 1 according to the present invention comprises a water supply line 3 connected to a faucet 2 to supply water, and a heating unit 4 mounted in midstream of the water supply line 3 to heat water. The heating unit 4 heats water traveling through the water supply line 3. The heating unit 4 requires only small space when installed, thus enabling effective use of the limited lavatory space within the aircraft. The cost of the heating faucet 1 as a whole is cut down, and the heating unit 4 can be easily mounted to the water supply line 3.
    Type: Application
    Filed: September 18, 2002
    Publication date: April 3, 2003
    Applicant: JAMCO CORPORATION
    Inventors: Hiroaki Kikuchi, Ryoichi Itakura
  • Patent number: 6504136
    Abstract: An apparatus for heating liquids, such as cooking fat, includes a vessel for the liquid to be heated, an electrically inductive impeller disposed in the vessel, a motor for rotating the impeller, to cause the liquid to circulate around the vessel, and a electrical coil on the opposite side of a wall of the vessel to the impeller. A high frequency signal is applied to the coil, which generates a magnetic field that induces eddy currents in impeller. The impeller is not an ideal conductor and, therefore, the electrical energy is dissipated as heat, as current, flows through the impeller. The heat generated in the impeller is transferred to the liquid as it circulated around the vessel by the impeller.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: January 7, 2003
    Inventor: Malcolm Robert Snowball
  • Patent number: 6485228
    Abstract: A method for recovering a liquid substance such as fuel oil from ships sunk or stranded due to marine accidents and from storage facilities by more easily heating the liquid substance to reduce its viscosity, and a device for recovering liquid substance. A working coil (2) is applied to the inner bottom plate (7) of a conductive tank (6) in contact with the liquid substance to be recovered, a high-frequency current is supplied to the working coil (2) from a high-frequency inverter unit (3) to heat the inner bottom plate (7) itself by induction heating and the liquid substance is reduced in viscosity by the heating for recovery via a recovery pipe (5) connected to a pump (4).
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 26, 2002
    Assignee: The Nippon Salvage Co., Ltd.
    Inventor: Masahiro Komatsu