Specific Inductor Configuration Patents (Class 219/672)
  • Publication number: 20110036831
    Abstract: Apparatus and method are provided for electric induction heat treatment of electrically conductive thin strip material. Multiple series-connected coil loops, each having a pole pair, are provided in each of a top and bottom induction coil, which are positioned mirror image to each other. The top and bottom induction coils form a transverse flux induction heat treatment apparatus. A separate flux concentrator is provided over and on the side of each pole. The thin strip material passes between the poles of the top and bottom induction coils and the flux concentrators associated with each of the poles.
    Type: Application
    Filed: August 9, 2010
    Publication date: February 17, 2011
    Inventors: Gregg G. WARNER, James D. PARKER, John Justin MORTIMER
  • Publication number: 20110011852
    Abstract: The system is based in that the heat energy needed to be supplied in order to demould a food product from a metallic mold (3), is provided by induction coils (9) mounted on a rigid support (4) belonging to a module (1), and several of these modules (1) being mounted on a common tubular support (2), being fixed through a ball-coupling to a ring (5) and a polymeric joint (6). The induction coil (9) on each module (1) is positioned close to the surface facing the cavity of the rigid body (4) of the module (1) wherein the mold (3) containing the food product to be demolded is positioned.
    Type: Application
    Filed: June 28, 2010
    Publication date: January 20, 2011
    Inventors: Miguel MEZQUIDA GISBERT, Enrique DEDE GARCÍA-SANTAMARÍA, José JORDAN MARTÍNEZ, Pedro MORATALLA MARTÍNEZ
  • Publication number: 20110011750
    Abstract: 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.
    Type: Application
    Filed: June 20, 2010
    Publication date: January 20, 2011
    Inventors: Jean LOVENS, Michel FONTAINE, Bernard M. RAFFNER
  • Publication number: 20100326984
    Abstract: There is provided an induction heating apparatus which continuously heats a steel plate using a solenoid system. The induction heating apparatus (1) includes: at least three heating coils (10A to 10D) disposed along a longitudinal direction of the steel plate to make the steel plate (2) pass through an inside thereof; and inductance adjusters (12A to 12D) disposed on electrical pathways (11) electrically connecting each of the heating coils and a power source applying a voltage to each of the heating coils and capable of generating self-induction and adjusting self-inductance in the self-induction, in which each of the inductance adjusters is disposed to cause a generation of mutual induction at least between the inductance adjusters mutually adjacent to one another.
    Type: Application
    Filed: March 12, 2009
    Publication date: December 30, 2010
    Applicants: NIPPON STEEL CORPORATION, FUJI ELECTRIC SYSTEMS CO., LTD.
    Inventors: Hiroaki Mochinaga, Kazunari Ishizaki, Shigenobu Koga, Takaharu Kataoka, Kenji Umetsu, Yasuo Matsunaga, Yasuyuki Ikeda
  • Patent number: 7858908
    Abstract: A method for inductively heating a workpiece using a heating coil that surrounds the sides and ends of the workpiece, wherein the heating coil comprises a first coil assembly that encloses a first portion of the workpiece and a second coil assembly that encloses a second portion of the workpiece. A power supply is operatively connected to the first coil assembly and the second coil assembly.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: December 28, 2010
    Assignee: Team Industrial Services, Inc.
    Inventors: Trevor Wallace, Kurt D Hand, John P Kearns
  • Patent number: 7835681
    Abstract: An induction heating device of the invention is made to have a two-layer structure in which at an end of a magnetic core of an induction current generating coil, a litz wire of outside three turns is stacked on a litz wire of inside three turns. The width of a joint portion between plural induction current generating coils is made narrow, and a mutual induction current generated at the joint portion is reduced. Further, the whole length of the litz wire is shortened without changing the length of the magnetic core of the inductor current generating coil.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: November 16, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi, Yoshinori Tsueda, Toshihiro Sone
  • Publication number: 20100282363
    Abstract: A beverage bottling plant with heated information-adding equipment and information-adding equipment. The abstract of the disclosure is submitted herewith as required by 37 C.F.R. §1.72(b). As stated in 37 C.F.R. §1.72(b): A brief abstract of the technical disclosure in the specification must commence on a separate sheet, preferably following the claims, under the heading “Abstract of the Disclosure.” The purpose of the abstract is to enable the Patent and Trademark Office and the public generally to determine quickly from a cursory inspection the nature and gist of the technical disclosure. The abstract shall not be used for interpreting the scope of the claims. Therefore, any statements made relating to the abstract are not intended to limit the claims in any manner and should not be interpreted as limiting the claims in any manner.
    Type: Application
    Filed: May 12, 2010
    Publication date: November 11, 2010
    Inventor: Klaus Krämer
  • Publication number: 20100243644
    Abstract: It was learned that in an insulation heating coil used for continuously heating a running steel sheet, the conventional insulated structure of the induction heating coil was selected focusing on the heat resistance and insulation ability of the insulation itself and cannot prevent a drop in insulation ability due to entry of fine metal particles (for example, zinc fumes) in the surroundings. Therefore, an insulated structure of induction heating coil preventing the entry of zinc fumes and other fine metal particles, not falling in strength even in a high temperature environment, and able to extend the service life of the induction coil is provided. Specifically, the surface of the induction heating coil is covered with a ceramic cloth made of alumina-silica ceramic long-fibers not containing boron and the surface of that is formed with a heat-resistant insulation layer made of a surface hardening ceramic material containing alumina or alumina-silica fine particles and alumina-silica ceramic short-fibers.
    Type: Application
    Filed: September 26, 2008
    Publication date: September 30, 2010
    Inventors: Hidetoshi Terashima, Seiji Ieda
  • Publication number: 20100237066
    Abstract: Yoke formed by a stack of magnetic laminations 4 that have mutually parallel edge notches 7 with open lips, these being located at least in the corners of the inductor. These notches are preferably spaced apart by a few mm, but the separating interval may be higher, from 1 cm and beyond, without however exceeding about 5 cm. They start at the lamination edges and extend, preferably along straight lines, towards the interior over a distance that depends on the environment of the inductor. They are produced by removing material so that each notch 7 has non-touching lips (therefore open lips), even preferably at discrete points, so as to prevent offering bridges for the circulation of eddy currents thereat. The invention applies to the production of heating inductors, by controlling the thermal behaviour of the inductors by simple means that prevent them from overheating.
    Type: Application
    Filed: September 18, 2008
    Publication date: September 23, 2010
    Applicants: ArcelorMittal France, Arcelormittal-Stainless France
    Inventors: Alain Daubigny, Marc Anderhuber
  • Patent number: 7791005
    Abstract: The invention includes coil constructions configured for utilization in PVD chambers, and also includes methods of forming coil constructions suitable for utilization in PVD chambers. The coil constructions can include one or more cup projections extending from an outer periphery of a coil body. The cup projections are one-piece with the coil body, and have a recess extending therein with a projecting lip extending entirely around the recess. The cup projections further comprise a fastener receiver within the recess configured to receive a fastener for connecting the coil with the chamber. The methods of forming the coil construction can include identifying separate components of an assembly associated with a coil replacement kit, and forming a one-piece construction which can be substituted for at least two of the components.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: September 7, 2010
    Assignee: Honeywell International, Inc.
    Inventors: John D. Mize, Kenneth I. Niemela, Len Hom
  • Patent number: 7789660
    Abstract: A pusher furnace includes furnace sections having respective susceptors, a slide rail extending through the furnace sections for sliding pusher plates thereon and an alignment assembly for aligning the susceptors and slide rails of adjacent furnace sections. A support structure spaces the susceptors from insulation therebelow to protect the insulation from degradation from contact with the susceptors. The susceptors are slidably mounted on the support structure to accommodate thermal expansion and shrinkage of the susceptor. The upstream end of the slide rails have beveled upper edges to help prevent the pusher plates from catching thereon. The upstream ends are also laterally tapered to reduce the degree of force encountered should a pusher plate catch thereon. Adjacent insulation members have expansion joints filled with a refractory felt. The susceptors slidably and sealingly engage exhaust ports to allow for thermal expansion and shrinkage of the susceptor without damaging the exhaust port.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: September 7, 2010
    Assignee: Ajax Tocco Magnethermic Corporation
    Inventors: Anthony M. Tenzek, David A. Lazor
  • Publication number: 20100193506
    Abstract: A litz wire coil is formed of two litz wires, each having a number of single wires equal to one half of a predetermined number of single wires and each stranded collectively in mutually reverse directions and wound in parallel. The two litz wires are shaped into a coil and then pressed into a predetermined shape by means of a die. Since the number of single wires within each of two litz wires is set equal to one half of a predetermined number, electrical resistance substantially equal to that of a single litz wire coil is attained without increasing the single wire diameter and without thickening the insulating film on the individual wires.
    Type: Application
    Filed: July 16, 2008
    Publication date: August 5, 2010
    Applicant: SWCC SHOWA DEVICE TECHNOLOGY
    Inventors: Masahiro Nagai, Shirou Hasegawa
  • Publication number: 20100181298
    Abstract: An induction coil for use in a method for the inductive heating of metallic components, particularly components of a gas turbine, is disclosed. The coil includes at least two windings and the distance between the individual windings is configured such that the component or components to be heated can be inserted between two windings that are spaced apart from each other. A method and a device for the inductive heating of metallic components, particularly components of a gas turbine, and to a component produced by the method is also disclosed.
    Type: Application
    Filed: May 17, 2008
    Publication date: July 22, 2010
    Applicant: MTU AERO ENGINES GMBH
    Inventors: Alexander Gindorf, Herbert Hanrieder, Hans Pappert
  • Publication number: 20100178088
    Abstract: An image heating apparatus for heating an image on a recording material, includes a rotatable heat generation member capable of induction heat generation by a magnetic flux; a coil, provided outside the heat generation member, for generating the magnetic flux for the induction heat generation; a movable magnetic core provided at a position opposed to the coil; a moving device for moving the magnetic core between a first position opposed to the coil and a second position which is more away from the coil than the first position; and an electroconductive member mounted at a position where a magnetic circuit is capable of being formed with the coil when the magnetic core is in the second position.
    Type: Application
    Filed: January 8, 2010
    Publication date: July 15, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kohei Koshida, Daigo Matsuura
  • Publication number: 20100163551
    Abstract: An object of the present invention is to provide an induction heater and an induction heating method capable of heating by induction a work in which a gear portion and a shaft are integrated. An induction heater for a gear portion and a stepped shaft is arranged in such a manner that a first heating coil (annular coil) surrounds the gear portion and that a second heating coil (linear coil) faces the stepped shaft in an axial direction. Alternating currents of different frequencies are supplied to the first heating coil 1 and the second heating coil. Further, a part of the second heating coil is arranged so as to come opposite a boundary between the gear portion and the stepped shaft, thereby connecting a hardened pattern of the gear portion by the first heating coil and a hardened pattern of the stepped shaft by the second heating coil.
    Type: Application
    Filed: December 15, 2009
    Publication date: July 1, 2010
    Inventors: Junji Minoue, Takehiko Nagao
  • Publication number: 20100155391
    Abstract: A galley oven (10) for preparing food on board an aircraft comprises a housing (12) and a rack (18) which is introducable into the housing (12) and removable from the housing (12). The rack (18) comprises a plurality of receiving devices (24) for receiving food containers (26) that are to be heated in the galley oven (10).
    Type: Application
    Filed: December 17, 2009
    Publication date: June 24, 2010
    Inventors: Stefan Koschberg, Marco Mundt
  • Publication number: 20100147833
    Abstract: An apparatus and related method for inductively heating a workpiece is disclosed. A first magnetic unit is rotated about a metallic workpiece utilizing a super-conducting spool, while a second magnetic unit can be utilized to generate an exterior magnetic field operable to drive the first magnetic unit.
    Type: Application
    Filed: February 22, 2010
    Publication date: June 17, 2010
    Applicant: ZENERGY POWER GMBH
    Inventors: Carsten Buehrer, Jens Mueller
  • Publication number: 20100117213
    Abstract: An apparatus to package a semiconductor chip includes a coil configured to use induction heating to reflow a solder ball of the semiconductor chip. The coil includes a first body, a second body parallel to the first body, a third body extending from the first body to the second body. The first and second bodies are symmetrical with respect to a vertical plane disposed therebetween. The first and second bodies have inclined surfaces facing each other, and the inclined surfaces are distant from each other downward.
    Type: Application
    Filed: November 10, 2009
    Publication date: May 13, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Minill KIM, Kwang Yong LEE, Jonggi LEE, Ji-Seok HONG, Hyun Jeong WOO
  • Publication number: 20100025391
    Abstract: A composite inductive heating assembly capable of providing in various embodiments, one or more of a variable or higher power density, tighter temperature control, reduced power consumption, longer operating life, and lower manufacturing costs, particularly in a compact design. A composite inductive heating assembly includes an inner layer of dielectric material, a multi-turn coil disposed over the inner layer, and an outer self-supporting body of moldable flux concentrator material rendering the inner layer, coil and flux concentrator into a self-supporting assembly. Select embodiments of the composite heating assembly include a nozzle heater and a manifold heater. A method of manufacturing the composite heater in a mold, with application of heat and pressure, is described.
    Type: Application
    Filed: July 31, 2008
    Publication date: February 4, 2010
    Applicant: iTherm Technologies, L.P.
    Inventors: John Palombini, Kyle B. Clark, Stefan von Buren
  • Publication number: 20090255924
    Abstract: A variable width transverse flux electric inductor has a fixed powered coil section and associated box-like moveable passive coil sections that electromagnetically couple with magnetic flux generated by current flowing through the fixed powered section. The passive coil sections can be transversely moved across the workpiece to accommodate induction heating of workpieces having different widths or track movement of the workpiece. Alternatively the fixed powered coil section and associated moveable coil sections may be connected to each other through flexible connections, sliding contacts or other means, such as clamps, so that an electrical connection can be maintained between both in any relative position.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 15, 2009
    Inventor: Jean Lovens
  • Publication number: 20090255922
    Abstract: A system includes a roll formed from a conductive material, where the roll is configured to rotate about an axis. The system also includes at least one induction heating workcoil configured to generate multiple magnetic fluxes within the roll. Each induction heating workcoil includes at least two separately wound coils. The multiple magnetic fluxes when spatially summed have a substantially null magnetic flux vector. An induction heating workcoil could represent a balanced induction heating workcoil that is configured to individually generate multiple magnetic fluxes that when spatially summed have the substantially null magnetic flux vector. Multiple induction heating workcoils could also represent unbalanced induction heating workcoils configured to collectively generate multiple magnetic fluxes that when spatially summed have the substantially null magnetic flux vector.
    Type: Application
    Filed: April 15, 2008
    Publication date: October 15, 2009
    Applicant: Honeywell International Inc.
    Inventors: Salvatore Chirico, Nicholas Dohmeier
  • 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
  • Publication number: 20090223949
    Abstract: An induction heating coil melts granules composed of semiconductor material on a plate with an outlet tube. The induction heating coil has a coil body provided with current-guiding slots, the coil body having an upper side and a lower side and having a passage opening for granules in a region of the coil body that lies outside the center of the coil, and current-carrying segments which project from the center of the lower side of the coil body and which are electrically conductively connected by a web at a lower end.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 10, 2009
    Applicant: SILTRONIC AG
    Inventors: Ludwig Altmannshofer, Joerg Fischer, Helge Riemann, Wilfried von Ammon
  • Publication number: 20090139986
    Abstract: An induction heating cooker and a control method thereof. The induction heating cooker includes a plurality of heating coil groups, each of the heating coil groups including a plurality of heating coils connected in series, a plurality of inverters to individually supply high-frequency voltages to the heating coil groups, respectively, and a controller to control operations of the inverters such that the high-frequency voltages are supplied to the heating coil groups, respectively, based on the numbers of heating coils upon which at least one cooking container is placed within the respective heating coil groups. Therefore, it is possible to effectively heat the cooking container even though the container is put on any position of a cooking plate irrespective of a specific position of the cooking plate. Also, it is possible to effectively heat the container regardless of the size of the container.
    Type: Application
    Filed: August 13, 2008
    Publication date: June 4, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Sung Ho Lee, Seok Weon Hong, Seong Deog Jang, Dae Rae Kim, Se Min Lee
  • Publication number: 20090127254
    Abstract: An induction coil for inductive heating of at least one metallic component having at least one lateral face and at least one face to be heated is provided. The induction coil includes a meandering pattern section shaped around the at least one component in such a way that the section extends over at least a partial area of the at least one lateral face of the at least one component to be heated in the area of the at least one face to be heated. A device and method for inductive heating of at least one metallic component are also provided.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 21, 2009
    Applicant: MTU Aero Engines GmbH
    Inventors: Joachim Bamberg, Alexander Gindorf, Herbert Hanrieder, Guenter Zenzinger
  • Publication number: 20090092384
    Abstract: A tankless water heater comprising a pipe, at least one coil around the pipe, at least one heating element located within the pipe and responsive to an electromagnetic field generated by the coil, and a controller to apply an alternating current (AC) signal to the at least one coil, the AC signal applied at a predetermined frequency and magnitude to cause the heating element to heat water flowing in the pipe to a predetermined temperature through induction heating.
    Type: Application
    Filed: August 8, 2008
    Publication date: April 9, 2009
    Inventors: Shimin Luo, Yongbing Ding
  • Publication number: 20090084777
    Abstract: An induction heater may comprise a base, a plurality of first solids of ferromagnetic or ferrimagnetic material and a first coil having a plurality of wire windings. The solids have a prescribed shape and are provided to have a prescribed arrangement on the base, and the first coil has a prescribed shape, and the first coil is provided over at least portions of the plurality of solids. A second coil may be provided within the first coil and spaced apart from the first coil. The second coil cross over at least portions of the plurality of first solids. A plurality of second solids of ferromagnetic or ferrimagnetic material may be formed parallel to each other, and contact at least one of the first solids. The induction heater may also include a plurality of third solids of ferromagnetic or ferrimagnetic material, a third coil having a plurality of wire windings and a fourth coil.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 2, 2009
    Inventors: Doo Yong OH, Seung Hee Ryu, Byeong Wook Park
  • Publication number: 20090049975
    Abstract: The present method of forming a groove in an inner surface of a member for covering an airbag includes the steps of heating a blade by use of an induction-heating device and pushing the blade against the inner surface of the member. The induction-heating device is preferably a coil for induction heating. In addition, the present method of forming the groove preferably includes the steps of placing the member on a work bench having the coil, supplying alternating current to the coil, bringing the blade close to the coil, pushing the blade against the inner surface of the member, stopping current supply to the coil, and pulling the blade away from the inner surface of the member.
    Type: Application
    Filed: July 18, 2008
    Publication date: February 26, 2009
    Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA
    Inventors: Masao TADA, Yukio ISHIHARA
  • Publication number: 20090038772
    Abstract: There is provided an induction-melting apparatus capable of exhibiting high refining performance without inflicting damage to a crucible even if a halide-compound base refining flux is used upon induction-melting of an ultrahigh-purity high melting-point metal, having a melting point reaching 1500° C., and a method for induction-melting using the same. There is also provided a melting method for enabling production of ultrahigh-purity Fe-base, Ni-base, and Co-base alloying materials, each having an impurity level of (C+O+N+S+P)<100 ppm, and Ca<10 ppm, and in the form of a large ingot. Further, with the induction-melting apparatus, a plurality of tubular segments are disposed so as to be cylindrical in shape, a gap in a range of 1.
    Type: Application
    Filed: November 21, 2006
    Publication date: February 12, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Kazutaka Kunii, Tatsuhiko Kusamichi, Jumpei Nakayama, Kiyoshi Kiuchi
  • Patent number: 7482559
    Abstract: An apparatus and process are provided for inductively heating a workpiece by transverse flux induction. The apparatus comprises a pair of identical coils, each of which includes a reversed head section bent to the opposite side of the workpiece. The assembled pair of coils is configured to effectively form a generally O-shaped coil arrangement on opposing sides of the workpiece. Combination electrically conductive and magnetic compensators, passive or active/passive, are also provided for use with transverse flux inductors.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: January 27, 2009
    Assignee: Inductotherm Corp.
    Inventors: Mike Maochang Cao, Vitaly A. Peysakhovich
  • Publication number: 20090020526
    Abstract: An induction device for an induction heating plate (5), is adapted in such a way as to be arranged beneath a vitroceramic plate and includes at least first and second individual electroconductive windings (3A and 3B) which are arranged next to each other in a first plane. The device includes a magnetic conductive element (6) forming a coupling member which extends beneath the first individual winding (3A) and the second individual winding (3B) in such a way as to magnetically couple the first and second individual windings (3A and 3B). The invention can be especially used in an induction cooking surface.
    Type: Application
    Filed: December 27, 2006
    Publication date: January 22, 2009
    Applicant: Fagorbrandt SAS
    Inventor: Alain Roux
  • Publication number: 20090008384
    Abstract: A variable-size induction heating plate includes a plurality of windings (10a, 10b, 10c, 10?a, 10?b, 10?c) arranged in a cooking surface. The heating plate includes two sets (10, 10?) of a plurality of windings arranged side-by-side, each set (10, 10?) of windings being adapted in such a way as to form a heating plate, and control elements (12, 12?, 13) which are adapted in such a way as to control the operation of the sets (10, 10?) both in an independent manner and a synchronous manner. Each set of windings is fed by a single current generator (11, 11). The inventive heating plate can be used in an induction cooking surface.
    Type: Application
    Filed: December 22, 2006
    Publication date: January 8, 2009
    Applicant: Fagorbrandt SAS
    Inventor: Alain Roux
  • Publication number: 20080302785
    Abstract: A fixing apparatus includes a mold (holding member) formed by injection molding to hold a coil so that the coil maintains a predetermined positional relation with respect to a heating roller, and capable of holding a temperature sensor which detects a temperature of the heating roller and a thermostat which detects an abnormal temperature of the heating roller in predetermined positions facing the heating roller.
    Type: Application
    Filed: August 11, 2008
    Publication date: December 11, 2008
    Inventors: Satoshi Kinouchi, Osamu Takagi, Yoshinori Tsueda, Toshihiro Sone
  • Patent number: 7449663
    Abstract: Apparatus and method for inductive heating wherein an internal inductive heating assembly is provided within a bore of a solid article. The heating assembly includes an interior coil inductively coupled to a portion of the article adjacent the bore to inductively heat the article. The heating assembly lacks an internal cooling mechanism and the coil thermally coupled to the adjacent article portion for transmission of heat from the coil to the article. A signal is provided to the coil to generate a magnetic flux for inductive heating of the adjacent article portion.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: November 11, 2008
    Assignee: iTherm Technologies, L.P.
    Inventors: Valery Kagan, Kyle B. Clark, Wayne N. Collette, Stefan von Buren
  • Patent number: 7446289
    Abstract: A device is provided for adiabatically compressing a plasma stream and maintaining the plasma stream in the compressed state. The device has a plasma compression region; a first plurality of electromagnets positioned around the plasma compression region for compressing the plasma stream; a reaction region positioned down stream from the plasma compression region; and a second plurality of electromagnets positioned around the reaction region for maintaining the plasma stream in its compressed state.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: November 4, 2008
    Inventors: Vernon E. Staton, Jeremy C. Cheron, Soorena Sadri
  • Publication number: 20080264932
    Abstract: An induction heating apparatus for heating a traveling metal plate includes an induction coil for surrounding the metal plate. The induction coil includes an upper induction coil for being located above the metal plate and a lower induction coil for being located below the metal plate. The upper and lower induction coils are spaced from each other in a longitudinal direction of the metal plate a constant distance across a transverse direction of the metal plate. Each of the upper induction coil and the lower induction coil is arranged obliquely at an edge area of the metal plate so as to form an oblique angle with the transverse direction of the metal plate.
    Type: Application
    Filed: February 9, 2006
    Publication date: October 30, 2008
    Applicant: NIPPON STEEL CORPORATION ,
    Inventor: Yoshiaki Hirota
  • Patent number: 7442906
    Abstract: In an induction heating coil for heating a shaft member having multiple steps, annular conductors are separately disposed in the axis direction, the annular conductors having inner diameters so as to form predetermined gaps with outer peripheries of heating portions of the shaft member, the lengths of annular conductors (1, 2, and 3) are set so that the areas of the respective heating portions are approximately equal to each other, and the annular conductors are connected to each other in series, so that the respective step shaft portions of the shaft member are uniformly heated. The annular conductors described above may be formed to have shapes in conformity with the shapes of the heating portions of the shaft member and may be formed to have a step shape corresponding to steps of the shaft member having different outer diameters.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: October 28, 2008
    Assignee: Neturen Co., Ltd.
    Inventors: Yoshimasa Tanaka, Takeshi Endoh, Yutaka Kiyosawa, Fumiaki Ikuta, Takashi Horino, Masayuki Komatsu, Jun Fujie, Takeshi Yoshikawa
  • Patent number: 7432479
    Abstract: Heating devices and methods which are particularly useful in vending machines for hot Foods. Foods such as beverages contained in individual containers such as cans are rapidly heated to serving temperature by induction heating for delivery to a customer. Various types of foods with food by varying the power and timing of the inductive heating. The type of food is identified by machine-readable indicia on the container which are automatically scanned prior to heating. The food containers may be agitated before, during and/or after heating to mix the contents and distribute heat evenly. The containers are heated in a vertical orientation to safely heat the food without overheating or damage to the container. A power management protocol turns off non-essential components of the vending machine while the inductive heater is energized to permit the vending machine to operate on a standard 120 VAC, 15 A electrical circuit without overload.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: October 7, 2008
    Assignee: Pepsico, Inc.
    Inventors: Jose G. Avendano, William W. Segiet, Leslie L. Thompson
  • Publication number: 20080223853
    Abstract: The invention relates to a heat generator comprising a magneto-caloric material and a method for generating efficient and reliable thermies enabling of substantially limiting displaceable inert masses in order to produce a magnetic field variation required for obtaining a magneto caloric effect and usable by individuals and/or industries. The inventive generator (10) comprises magneto caloric thermal elements (Ti) which are circularly arranged and crossed by conduits containing coolant flowing therethrough and magnetic elements (Gi) exposing the thermal elements (Ti) to a magnetic field action. The generator (10) also comprises magnetic divergence (mj) elements arranged between the thermal elements (Ti) and the magnetic elements (Gi) and coupled to displacement mechanism (not represented) for moving from one thermal element (Ti) to another thermal element (Ti+1) and initiating the magnetic flux variation in the thermal elements (Ti), thereby promoting the calorie and/or frigorie generation.
    Type: Application
    Filed: March 29, 2005
    Publication date: September 18, 2008
    Inventors: Christian Muller, Jean-Louis Dupin, Jean-Claude Heitzler
  • Publication number: 20080191391
    Abstract: Multiple solid materials are introduced to a mixing vessel in defined proportion. They are melted by an electromagnetic induction heated susceptor and mixed simultaneously by the shearing action at the melt face of a second rotating susceptor. Material compounding takes place at the application site. Varying the physical structure of the susceptor or multiple susceptors processes materials of differing initial melt viscosity and particle size. Non-melting particulate material can be included in the mix. Reactive components can be combined at the application site.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 14, 2008
    Inventor: Bernard Lasko
  • Patent number: 7411164
    Abstract: An image fixing device inductively injects thermal energy into a rotating printing form of a press for fixing an image formed on the rotating printing form by means of a digital imaging system. The fixing device has at least one inductor with at least one induction loop, a high-frequency part that forms a tuned circuit with the inductor, and a supply part that can be coupled to the inductor by means of supply lines suitable for high frequency. The inductor loop is in an elongated form aligned parallel to the circumferential direction of the rotating printing form, with the effect that the zone of energy transfer and therefore the heating zone can be configured specifically in terms of its spread in the printing form, so that a high flux density can be introduced zonally into the printing form at the point which is to be heated.
    Type: Grant
    Filed: May 5, 2005
    Date of Patent: August 12, 2008
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Michael Wagner, Thomas Kothmayr, Franz Peter Weissgärber, Johann Dieter Bierl
  • Publication number: 20080164250
    Abstract: A magnetic heater is provided having a conductor assembly and a magnet assembly. The magnet assembly is adapted to rotate relative to the conductor assembly about an axis so as to induce eddy currents in the conductor assembly when relative motion is produced between the conductor assembly and first magnet assembly. The conductor assembly defines a fluid path therein for the transfer of heat from the conductor assembly to a fluid. The magnetic heater is a component of a heat generation system comprising an internal combustion engine having a drive shaft for rotating the magnet assembly. The heat generated by the magnetic heater, as well as the heat generated by the engine from the engine exhaust and engine cooling system, is combined to heat a fluid.
    Type: Application
    Filed: December 30, 2007
    Publication date: July 10, 2008
    Applicant: MagTec Energy, LLC
    Inventor: Timothy W. Lunneborg
  • Publication number: 20080163833
    Abstract: A magnetic heater is provided having a conductor assembly and a magnet assembly. The magnet assembly is adapted to rotate relative to the conductor assembly about an axis so as to induce eddy currents in the conductor assembly when relative motion is produced between the conductor assembly and first magnet assembly. The conductor assembly defines a fluid path therein for the transfer of heat from the conductor assembly to a fluid. The magnetic heater is a component of a heat generation system comprising an internal combustion engine having a drive shaft for rotating the magnet assembly. The heat generated by the magnetic heater, as well as the heat generated by the engine from the engine exhaust and engine cooling system, is combined to heat a fluid.
    Type: Application
    Filed: December 30, 2007
    Publication date: July 10, 2008
    Applicant: MagTec Energy, LLC
    Inventor: Timothy W. Lunneborg
  • Patent number: 7390995
    Abstract: An image forming apparatus includes a fixing device which fixes a toner image on a recording medium. The fixing device includes a heating device. The heating device includes a heat-generating member, an exciting member, and a changing device. The heat-generating member is subjected to electromagnetic induction heating. The exciting member is placed to sandwich a front surface and a rear surface of the heat-generating member, without contacting the heat-generating member. The changing device changes an opposing distance of the exciting member to at least one of the front surface and the rear surface of the heat-generating member.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: June 24, 2008
    Assignee: Ricoh Company, Limited
    Inventors: Motokazu Hasegawa, Norihiko Aze
  • Patent number: 7375986
    Abstract: A heating current used to inductively heat a metallic or magnetic work-piece is generated by an inverter supplied by a supply voltage. The inverter includes four switching elements arranged in an H-bridge circuit having two parallel longitudinal branches and a transverse branch. The switches are controlled so the heating current flows through the transverse branch. The diagonally opposed switching elements are switched from a conductive to a non-conductive state in a temporally staggered manner.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: May 20, 2008
    Assignee: Newfrey LLC
    Inventors: Klaus Schmitt, Wolfgang Schmidt, Heiko Scheffler
  • Patent number: 7359667
    Abstract: A fusing device for an image forming apparatus including a cylindrical fusing roller, a pressure roller installed opposite to the fusing roller and pressing a sheet of paper passing therebetween, and an inductive heating element simultaneously heating the fusing roller and the pressure roller. The fusing device reduces the time to reach a fusing temperature by heating both the fusing roller and the pressure roller with a closed magnetic core extending between hollow portions of each.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: April 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In-gu Kwak, Il-han Park
  • Patent number: 7355149
    Abstract: An electromagnetic induction coil unit for use with an electromagnetic induction heating-type image heating apparatus includes magnetic flux generation means comprising an exciting coil and a magnetic core; a core holder for holding the magnetic core; a coil holder for holding the exciting coil and the core holder holding the magnetic core; and a resin cured after being poured in a liquid state into a structure in which the exciting coil and the coil holder, and the magnetic fore and the core holder are incorporated so as to integrally mold the exciting coil, the magnetic core, the core holder, and the coil holder.
    Type: Grant
    Filed: December 13, 2005
    Date of Patent: April 8, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventor: Koki Watanabe
  • Patent number: 7335857
    Abstract: A rod-shaped heating element with a tubular carrier element attached to a cylindrical carrier ring and to the rod-shaped heating element using a magnetic forming process, the carrier ring and the rod-shaped heating element being within the tubular carrier element with the outer circumferential surface of the carrier ring contacting the inner circumferential surface of the tubular carrier element. As a result of the parts having been joined by magnetic forming, they are in a plastically deformed state which is free of thermal treatment effects and scuffing.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: February 26, 2008
    Assignee: Beru AG
    Inventor: Martin Eller
  • Patent number: 7279663
    Abstract: A fixing device includes a heating roller which is made of a magnetic metal, a coil which is made of a plurality of twisted wires, an exciting circuit which applies a high-frequency current to the coil, and a core which is made of a heat resistant resin and is arranged inside the heating roller. The core has two grooves, each of the grooves being formed on a surface of the core and running along a longitudinal direction of the core. Parts of the coil are buried in the grooves such that a distance between the outer surface of the coil wound on the core and the inner surface of the heating roller is constant.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: October 9, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Osamu Takagi, Satoshi Kinouchi
  • Patent number: RE41796
    Abstract: A heating current used to inductively heat a metallic or magnetic work-piece is generated by an inverter supplied by a supply voltage. The inverter includes four switching elements arranged in an H-bridge circuit having two parallel longitudinal branches and a transverse branch. The switches are controlled so the heating current flows through the transverse branch. The diagonally opposed switching elements are switched from a conductive to a non-conductive state in a temporally staggered manner.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: October 5, 2010
    Assignee: Newfrey LLC
    Inventors: Klaus Schmitt, Wolfgang Schmidt, Heiko Scheffler