Specific Inductor Configuration Patents (Class 219/672)
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Patent number: 11979966Abstract: Disclosed is a coil assembly and an electromagnetic cooking appliance. The coil assembly includes: a coil base, including a bottom wall and a side wall; a first coil and a second coil, fixedly located at the bottom wall and the side wall respectively; and a plurality of magnetic stripe supporters, located at the coil base along a circumferential direction. Each magnetic stripe supporter includes a first mounting part, a second mounting part, and a connecting part connected to the first mounting part and the second mounting part. The coil assembly in the disclosure can effectively reduce the mounting space for the magnetic stripe supporter, and prevent the interference between the magnetic stripe supporter and the circuit board supporter in the electromagnetic cooking appliance.Type: GrantFiled: October 17, 2018Date of Patent: May 7, 2024Assignee: FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MANUFACTURING CO., LTD.Inventors: Zhengting Fu, Chuanbin Zhu, Xianhuai Chen, Linbo Zhu, Wei Chen, Wei Yuan, Yuquan Wu, Yuehong Qu
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Patent number: 11878468Abstract: Apparatuses, systems and methods of providing heat to enable an FDM additive manufacturing nozzle having refined print control and enhanced printing speed. The heating element may include at least one sheath sized to fittedly engage around an outer circumference of the FDM printer nozzle; at least one wire coil at least partially contacting an inner diameter of the sheath; and at least one energy receiver associated with the at least one wire coil.Type: GrantFiled: September 20, 2021Date of Patent: January 23, 2024Assignee: JABIL INC.Inventors: William MacNeish, Erik GJovik
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Patent number: 11878469Abstract: Apparatuses, systems and methods of providing heat to enable an FDM additive manufacturing nozzle having refined print control and enhanced printing speed. The heating element may include at least one sheath sized to fittedly engage around an outer circumference of the FDM printer nozzle; at least one wire coil at least partially contacting an inner diameter of the sheath; and at least one energy receiver associated with the at least one wire coil.Type: GrantFiled: September 21, 2021Date of Patent: January 23, 2024Assignee: JABIL INC.Inventors: William MacNeish, Erik GJovik
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Patent number: 11872762Abstract: Apparatuses, systems and methods of providing heat to enable an FDM additive manufacturing nozzle having refined print control and enhanced printing speed. The heating element may include at least one sheath sized to fittedly engage around an outer circumference of the FDM printer nozzle; at least one wire coil at least partially contacting an inner diameter of the sheath; and at least one energy receiver associated with the at least one wire coil.Type: GrantFiled: October 12, 2021Date of Patent: January 16, 2024Assignee: JABIL INC.Inventors: William MacNeish, Erik Gjovik
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Patent number: 11845223Abstract: Apparatuses, systems and methods of providing heat to enable an FDM additive manufacturing nozzle having refined print control and enhanced printing speed. The heating element may include at least one sheath sized to fittedly engage around an outer circumference of the FDM printer nozzle; at least one wire coil at least partially contacting an inner diameter of the sheath; and at least one energy receiver associated with the at least one wire coil.Type: GrantFiled: September 20, 2021Date of Patent: December 19, 2023Assignee: Jabil Inc.Inventors: William MacNeish, Erik GJovik
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Patent number: 11840019Abstract: Apparatuses, systems and methods of providing heat to enable an FDM additive manufacturing nozzle having refined print control and enhanced printing speed. The heating element may include at least one sheath sized to fittedly engage around an outer circumference of the FDM printer nozzle; at least one wire coil at least partially contacting an inner diameter of the sheath; and at least one energy receiver associated with the at least one wire coil.Type: GrantFiled: September 20, 2021Date of Patent: December 12, 2023Assignee: JABIL INC.Inventors: William MacNeish, Erik Gjovik
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Patent number: 11729868Abstract: An induction heating device is provided. The induction heating device comprises a plurality of induction heating devices disposed at intervals along the circumference of a ring-shaped workpiece, a setting unit for setting induction heating conditions, and a switching control unit. Each of the plurality of induction heating devices comprises heating coils disposed facing areas to be heated of the workpiece, a plurality of transformers connected to the heating coils in parallel, a plurality of matching units connected to any one of the plurality of transformers, an inverter unit having a rectifier unit and an inverter unit, an inverter control unit having a rectification control unit, and a group of switches.Type: GrantFiled: December 28, 2020Date of Patent: August 15, 2023Assignee: NETUREN CO., LTD.Inventors: Hitoshi Nakatsu, Masato Yoshioka, Yoshimasa Tanaka, Tsutomu Ito, Kenji Koyanagi, Masaki Sagae, Tatsuya Ishii, Yoshitaka Misaka, Yasuharu Ogawa
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Patent number: 11606845Abstract: Apparatuses, systems, and/or methods for providing an induction heating system are disclosed. The induction heating system includes an induction power supply and an induction heating tool configured to receive induction-type power from the induction power supply through one or more ports. The ports may be part of the induction power supply and/or an associated junction box. The induction heating tool may include a heating coil attached to one or more plugs via one or more cables. The ports of the induction power supply and/or junction box are configured to receive the plugs of the induction heating tool. A communication device may be positioned adjacent the ports. The communication device may be configured to read data from one or more memory devices of the induction heating tool (e.g., in/on the plugs) via close proximity communication.Type: GrantFiled: March 8, 2019Date of Patent: March 14, 2023Assignee: ILLINOIS TOOL WORKS INC.Inventors: Scott Liebert, Anthony Salsich
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Patent number: 11452313Abstract: Disclosed is an apparatus for heating smokable material to volatilize at least one component of the smokable material. The apparatus includes a heating zone for receiving an article (1, 2, 3), and a magnetic field generator for generating a varying magnetic field that penetrates the heating zone. The article includes smokable material and heating material that is heatable by penetration with a varying magnetic field to heat the smokable material. The magnetic field generator includes a magnetically permeable core and a coil. The core includes a magnetically permeable first portion and magnetically permeable first and second arms extending from the first portion. The coil is wound around the first portion of the core. The first and second arms of the core are on different sides of the heating zone.Type: GrantFiled: October 26, 2016Date of Patent: September 27, 2022Assignee: NICOVENTURES TRADING LIMITEDInventors: Duane A. Kaufman, Andrew P. Wilke, Thomas P. Blandino, James J. Frater, Raymond J. Robey
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Patent number: 11399415Abstract: Induction heating extension cables including control conductors are disclosed. An example cable assembly includes: a first plurality of conductors in a Litz cable arrangement; an outer protective layer configured to protect the plurality of conductors from physical damage; and a second plurality of conductors that are electrically isolated from the first plurality of conductors and are protected by the outer protective layer from physical damage.Type: GrantFiled: March 22, 2018Date of Patent: July 26, 2022Assignee: Illinois Tool Works Inc.Inventors: Anthony V. Salsich, Paul Verhagen
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Patent number: 11369010Abstract: Induction heating extension cables including control conductors are disclosed. An example cable assembly includes: a first plurality of conductors in a Litz cable arrangement; an outer protective layer configured to protect the plurality of conductors from physical damage; and a second plurality of conductors that are electrically isolated from the first plurality of conductors and are protected by the outer protective layer from physical damage.Type: GrantFiled: March 22, 2018Date of Patent: June 21, 2022Assignee: Illinois Tool Works Inc.Inventors: Anthony V. Salsich, Paul Verhagen
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Patent number: 11368099Abstract: A power conversion apparatus includes a rectifier to convert AC power into constant-current DC power, a resonant inverter to convert the DC power into AC power to be output to a load, and a control unit to receive settings of an output current value of the inverter, a current-supplying time of the inverter, an operation rate defined by dividing the current-supplying time by a sum of the current-supplying time and a non-current-supplying time, and a resonance frequency of the load. The control unit operates the rectifier and the inverter only when it determines that it is operable to perform an output in accordance with the set conditions, based on data in which the output frequency, the current-supplying time and the operation rate are associated with an allowable output current value of the inverter at a temperature equal to or lower than a maximum operable temperature of a switching device.Type: GrantFiled: November 19, 2018Date of Patent: June 21, 2022Assignee: NETUREN CO., LTD.Inventors: Takahiko Kanai, Haruki Yoshida
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Patent number: 11336195Abstract: A power conversion apparatus includes a rectifier to convert AC power into constant-current DC power, a resonant inverter to convert the DC power into AC power to be output to a load, and a control unit to receive settings of an output current value of the inverter, a current-supplying time of the inverter, an operation rate defined by dividing the current-supplying time by a sum of the current-supplying time and a non-current-supplying time, and a resonance frequency of the load. The control unit operates the rectifier and the inverter only when it determines that it is operable to perform an output in accordance with the set conditions, based on data in which the output frequency, the current-supplying time and the operation rate are associated with an allowable output current value of the inverter at a temperature equal to or lower than a maximum operable temperature of a switching device.Type: GrantFiled: November 19, 2018Date of Patent: May 17, 2022Assignee: NETUREN CO., LTD.Inventors: Takahiko Kanai, Haruki Yoshida
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Patent number: 11208701Abstract: Embodiments are described herein of a bifurcated heat treatment apparatus and methods for localized heat treatment of a golf club hosel or golf club head. The heat treating method comprises a bifurcated process in which the golf club head is treated in the first heating unit via induction heating and then moved to the second heating unit for convection heating. Both steps are to localize the hosel heat treatment. The heat treatment apparatus may also include a cooling component, such as a heat sink, to ensure the body of the club head remains at the correct temperature during the second heating stage when the hosel is heated in isolation. The overall bifurcated method and apparatus of the localized heat treatment leads to a hosel or golf club head with at least two different hardness values to allow for manipulation of the material without cracking or fracturing.Type: GrantFiled: August 18, 2017Date of Patent: December 28, 2021Assignee: Karsten Manufacturing CorporationInventors: Dave Wu, Tyler Shaw, Matthew W. Simone, Yujen Huang
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Patent number: 11166347Abstract: An induction heating device includes a first coil that is wound about an axis by a first number of rotations, a second coil that is spaced apart from the first coil in a radial direction and that is disposed radially outward of the first coil, the second coil being wound about the axis by a second number of rotations, and a power supply unit configured to convert alternating current (AC) power and to supply a high-frequency AC to the first coil and to the second coil based on conversion of the AC power. The induction heating device is configured to output a maximum output level in a range from 6500 W to 7500 W based on a ratio between the first number of rotations and the second number of rotations.Type: GrantFiled: May 31, 2017Date of Patent: November 2, 2021Assignee: LG Electronics Inc.Inventors: Dooyong Oh, Byeong Wook Park
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Patent number: 10648704Abstract: A magneto-caloric thermal diode assembly includes a magneto-caloric cylinder with a plurality of magneto-caloric stages. A length of one of the plurality of magneto-caloric stages is different than a length of another of the plurality of magneto-caloric stages. Each of a plurality of thermal stages includes a plurality of magnets and a non-magnetic ring. The plurality of magnets is distributed along a circumferential direction within the non-magnetic ring in each of the plurality of thermal stages. The length of each of the plurality of thermal stages corresponds to a respective one of the plurality of magneto-caloric stages.Type: GrantFiled: April 18, 2018Date of Patent: May 12, 2020Assignee: Haier US Appliance Solutions, Inc.Inventor: Michael Goodman Schroeder
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Patent number: 10638555Abstract: Aspects and embodiments of systems for fluid transportation using inductive heating are described. In one embodiment, the system includes a first transportation pipe having a first diameter and a second transportation pipe having a second diameter. The first diameter is greater than the second diameter. An augur that causes a fluid flow is within the first transportation pipe. A control circuit is electrically coupled to the first inductive element and the second inductive element, and to a power supply to inductively heat the first transportation pipe and the second transportation pipe.Type: GrantFiled: June 13, 2017Date of Patent: April 28, 2020Assignee: Hydra Heating Industries, LLCInventors: Michael Hoffman, Shuping Wang
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Patent number: 10295226Abstract: A vehicle temperature control unit includes an annular temperature control body (12) of magnetocaloric material over and/or around which heat transfer medium flows and a magnetic field arrangement (24), rotatable about an axis of rotation (A), providing magnetic field heating areas (36) and cooling areas (38) between the heating areas (36). A plurality of heat transfer medium flow zones (40), following one another in the circumferential direction are provided with the temperature control body (12), include two heat transfer medium flow zones (40) adjacent to one another that are associated with a heat transfer medium circulation sector (S). Heat input fluid flows through and/or around at least one heat transfer medium flow zone (50) for feeding heat into this heat transfer medium flow zone (50), or/and heat discharge fluid flows through and/or around at least one heat transfer medium flow zone (52) for discharging heat from the flow zone (52).Type: GrantFiled: April 7, 2016Date of Patent: May 21, 2019Assignee: Eberspächer Climate Control Systems GmbH & Co. KGInventor: Michael Humburg
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Patent number: 10143044Abstract: A rectangular sheet heating inductor or a multi-turn inductor is provided for induction heat treatment of a strip or slab material that may require a change in the interior opening of the inductor to allow an abnormal region of the material to pass through the interior opening and/or to allow a change in a dimension of the inductor to achieve impedance load matching with a material having variable electromagnetic properties such as a multiphase steel.Type: GrantFiled: September 20, 2016Date of Patent: November 27, 2018Assignee: Inductotherm Corp.Inventors: Jean Lovens, Michel Fontaine
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Patent number: 9991098Abstract: An apparatus for abatement of gases is provided. The apparatus includes a toroidal plasma chamber having a plurality of inlets and an outlet, and at least one chamber wall. One or more magnetic cores are disposed relative to the toroidal plasma chamber. The plasma chamber confines a toroidal plasma. A second gas inlet is positioned on the toroidal plasma chamber between a first gas inlet and the gas outlet at a distance d from the gas outlet, such that a toroidal plasma channel volume between the first gas inlet and the second gas inlet in the is substantially filled by the inert gas, the distance d based on a desired residence time of the gas to be abated.Type: GrantFiled: April 10, 2017Date of Patent: June 5, 2018Assignee: MKS Instruments, Inc.Inventors: Xing Chen, Ilya Pokidov, Feng Tian, Ken Tran, David Lam, Kevin W. Wenzel
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Patent number: 9006624Abstract: 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: GrantFiled: July 22, 2010Date of Patent: April 14, 2015Assignee: General Electric CompanyInventors: Daniel Brosnan, Mariano Filippa, Kresimir Odorcic
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Patent number: 9000336Abstract: A device for hardening the surface of a workpiece, wherein an energy supply part and a working part each include a magnetic core, wherein the magnetic cores are at a small distance from each other such that electrical energy is transmitted contactlessly from the energy supply part of the inductor to the working part of the inductor, and wherein the working part includes a heating conductor branch for inductive heating of a section of the surface of the workpiece; a control instrument coupled to the inductor, wherein the control instrument displaces the working part relative to the surface to be hardened and relative to the energy supply part, and wherein the magnetic core of the working part is displaced relative to the magnetic core of the energy supply part; and an electrical energy supply connected to the energy supply part of the inductor.Type: GrantFiled: October 7, 2010Date of Patent: April 7, 2015Assignee: SMS Elotherm GmbHInventor: Stefan Dappen
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Publication number: 20150041456Abstract: The induction coil unit for heating a component that is rotationally symmetrical relative to an axis (7), in particular a tool holder (5), comprises a plurality of coils (19) arranged about the axis (7) of the tool holder (5) with pole elements, which are movable radially with respect to the axis (7), which are connected to one another by a common yoke ring (17). Upon excitation of the coils (19) with alternating current, the latter produce a magnetic flux running in the peripheral direction in the tool holder (5) for the inductive heating of the tool holder (5). The induction coil unit (1) can be moved in an oscillating manner by means of a drive (87) in the direction of the axis (7), the pole elements (21) moving in an oscillating manner along the tool holder (5). An induction coil unit of this type is in a position to heat a comparatively large region of the tool holder (5) despite a comparatively small energy requirement and comparatively small dimensions.Type: ApplicationFiled: September 11, 2012Publication date: February 12, 2015Applicant: FRANZ HAIMER MASCHINENBAU KGInventor: Franz Haimer
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Publication number: 20150034630Abstract: A modular heat-retaining system for keeping food warm. The system contains a plurality of induction heat retaining units, each of which forms a heat-retaining area, and further contains a common power and control unit having a common power controller and a plurality of connection interfaces for individually connecting and individually activating the induction heat-retaining units. In addition, the heat-retaining system contains one or more operating units, wherein the induction heat-retaining units contain at least one induction coil as part of an induction resonant circuit for generating an alternating magnetic field. The power and control unit contains control means for individual activation of the induction heat-retaining units.Type: ApplicationFiled: January 5, 2012Publication date: February 5, 2015Applicant: INDUCS AGInventor: Christian Fuchs
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Publication number: 20150034631Abstract: A device for electrically heating a fluid, in particular for use in an electrically operated motor vehicle, comprising an induction coil, which is integrated in an oscillating circuit and produces an alternating magnetic field, and at least one first inductor, which is positioned within the alternating magnetic field. The inductor can be arranged inside a module, through which a fluid to be heated can flow, and the induction coil is arranged outside the module.Type: ApplicationFiled: October 20, 2014Publication date: February 5, 2015Inventors: Michael KOHL, Harri PANKRATZ, Ralph TRAPP
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Patent number: 8941036Abstract: The present invention provides a heating unit capable of easily and inexpensively adjusting total impedance based on tire mold size so that a power source can be used at a high power factor, and a tire heating apparatus using the same. A ferromagnetic metallic member 10a heats a tire mold M1 by heat conduction. An induction heating coil C1 is disposed on the side of the ferromagnetic metallic member 10a opposite the tire mold M1 to induction-heat the ferromagnetic metallic member 10a by generating magnetic field lines. A nonmagnetic conductor 30a is disposed on the side of the induction heating coil C1 opposite the ferromagnetic metallic member 10a to shield the magnetic field lines generated by the induction heating coil C1. A heating unit 100a including these elements heats the tire mold M1 storing a tire.Type: GrantFiled: September 21, 2007Date of Patent: January 27, 2015Assignee: Kobe Steel, Ltd.Inventors: Kazuto Okada, Hideaki Kuwabara, Hisashi Mitamura, Tomomichi Murata, Masatake Toshima, Yasuhiko Fujieda
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Patent number: 8912473Abstract: 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: GrantFiled: December 22, 2006Date of Patent: December 16, 2014Assignee: Fagorbrandt SASInventor: Alain Roux
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Patent number: 8912472Abstract: An apparatus for hardening a spring having a helical or beehive shape. The apparatus has a rotation support system and an induction heating system. The rotation support system is designed to support the spring while the spring is heated by the induction heating system. The induction heating system has an induction coil system having a coil system. The coil system has a spaced region designed to receive the spring and to heat the spring while the spring is supported on the rotation support system.Type: GrantFiled: July 19, 2011Date of Patent: December 16, 2014Assignee: Barnes Group Inc.Inventors: Scott Kurylo, Mehieddine Rababeh
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Patent number: 8907257Abstract: The present invention relates to a contactlessly chargeable heater. In one example, the contactlessly chargeable heater includes: an induction patch emitting magnetic field by means of current applied to an inner coil; and a heating body, receiving the magnetic field from the charging patch to perform a contactless charging operation, and including a conductive metal yarn for emitting heat via the power generated through the contactless charging operation. The conductive metal yarn is woven together using threads within the heating body.Type: GrantFiled: December 29, 2010Date of Patent: December 9, 2014Assignee: Korea Institute of Industrial TechnologyInventor: Gi Soo Chung
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Patent number: 8890042Abstract: The present invention includes: a plurality of induction heating coils (11, 12, 13) which are disposed adjacently; capacitors (21, 22, 23) each of which is connected in series thereto; a plurality of inverters (30, 35, 31) each of which applies a high frequency voltage converted from a DC voltage to each series resonant circuit of the induction heating coil and the capacitor; and a control circuit (50) which operates the plurality of the inverters with a same frequency and current synchronization, controls so that a phase difference becomes minimal at a specific inverter, which supplies the maximum power to the plurality of the induction heating coils, between the high frequency voltage generated therefrom, and a resonant current flowing the series resonant circuit, and set a DC power supply voltage Vdc applied to the plurality of the inverters so that the output voltages (Vinv) become greater than mutual induction voltages (Vm).Type: GrantFiled: November 2, 2011Date of Patent: November 18, 2014Assignee: Mitsui Engineering & Shipbuilding Co., Ltd.Inventors: Naoki Uchida, Keiji Kawanaka, Takahiro Ao
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Publication number: 20140332176Abstract: Various embodiments provide apparatus and methods for melting materials and for containing the molten materials within melt zone during melting. Exemplary apparatus may include a vessel configured to receive a material for melting therein; a load induction coil positioned adjacent to the vessel to melt the material therein; and a containment induction coil positioned in line with the load induction coil. The material in the vessel can be heated by operating the load induction coil at a first RF frequency to form a molten material. The containment induction coil can be operated at a second RF frequency to contain the molten material within the load induction coil. Once the desired temperature is achieved and maintained for the molten material, operation of the containment induction coil can be stopped and the molten material can be ejected from the vessel into a mold through an ejection path.Type: ApplicationFiled: July 29, 2014Publication date: November 13, 2014Inventors: Theodore A. Waniuk, Joseph Stevick, Sean O'Keeffe, Dermot J. Stratton, Joseph C. Poole, Matthew S. Scott, Christopher D. Prest
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Patent number: 8884200Abstract: An openable induction coil is provided. An electromagnetically shielded inductor assembly can be formed from the openable induction coil and an electromagnetically shielded enclosure into which the coil can be inserted. The induction coil can be pivoted open while in the shielding enclosure without complete disassembly of the enclosure. In some examples of the invention, a dynamic “curtain” of a gas is injected through spaces between opening portions of the coil and adjacent sections of the shielding enclosure, and into the interior of the induction furnace formed by the openable induction coil when it is in the closed position.Type: GrantFiled: September 27, 2009Date of Patent: November 11, 2014Assignee: Inductotherm Corp.Inventor: Jean Lovens
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Patent number: 8866053Abstract: A permanent magnet thermal generator having a rotating chamber with an attached optionally rotational heat element in close proximity to one or more permanent magnets. The relative motion of the heat element to the magnetic flux from the magnets results in heat generation and in some cases in levitation. Clothe driers, air furnaces, water heaters and other systems incorporating a permanent magnet thermal generator are also set forth.Type: GrantFiled: September 9, 2010Date of Patent: October 21, 2014Inventor: Elberto Berdut-Teruel
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Publication number: 20140295100Abstract: A modular electric induction heating and coating apparatus and method for coating, heating and/or coating and heating (and vice versa) the exterior surface of a pipe section within a pipe treatment region is provided. The apparatus comprises an interchangeable central main frame assembly removably attached to an outer drive frame assembly on each side of the central main frame assembly. An interchangeable induction coil assembly can be mounted in a coil main frame assembly of the central main frame assembly. The coil main frame assembly can close around a pipe section for electric induction heating of the pipe section within the pipe treatment region via a driver system in a central top drive frame assembly. The outer drive frame assemblies include mounting and rotational drive assemblies for interchangeable coating head cartridges that can coat the section of the pipe in the pipe treatment region.Type: ApplicationFiled: May 2, 2013Publication date: October 2, 2014Applicant: Inductotherm Heating & Welding LimiteInventors: Stephen William BASKERVILLE, Derek HUMPHRIES, John W. BETTERIDGE, William FENWICK, Michael LEE
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Publication number: 20140263289Abstract: A production method produces a cable core for an induction cable in a simple and simultaneously reliable manner. In the method, a raw conductor is fed continuously to a processing machine and separated in a recurring manner at specified length positions at a separating point so that there are two wire ends. The ends are then pulled apart from each other in the longitudinal direction of the cable and then connected again by a connector which has an insulating spacer which separates the wire ends from each other by a specified distance. The connector is preferably configured as an injection molded part, in particular using the online process. A plurality of such cable cores are connected to each other via a cabling process and then enclosed by a cable sleeve to produce the induction cable.Type: ApplicationFiled: June 2, 2014Publication date: September 18, 2014Applicant: LEONI KABEL HOLDING GMBHInventors: JENS MOSEBACH, MICHAEL DREINER
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Publication number: 20140254621Abstract: 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: ApplicationFiled: May 25, 2014Publication date: September 11, 2014Applicant: Inductotherm Corp.Inventors: Jean LOVENS, Michel FONTAINE, Bernard M. RAFFNER
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Patent number: 8829399Abstract: A method and device for heating or hardening at least an axial segment of a rotationally-symmetric surface of a work piece includes rotating the work piece about its rotational axis and moving a peripheral portion of an inductor along a longitudinal profile of the axial segment of the rotating work piece with a constant spacing between the peripheral portion and the axial segment. At least a portion of the movement of the peripheral portion is composed of a first vector component in the direction of the rotational axis and a second component extending perpendicularly to the first vector component. The peripheral portion has a length in the rotational axis direction that is less the length of the axial segment in the rotational axis direction.Type: GrantFiled: March 11, 2009Date of Patent: September 9, 2014Assignee: Aktiebolaget SKFInventors: Marco Burtchen, Michael Jung
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Publication number: 20140246423Abstract: Provided are a high-frequency heat treatment coil that can be assembled with high dimension accuracy and can perform high-quality heat treatment, a method of producing such a high-frequency heat treatment coil, a constant velocity universal joint subjected to high-quality heat treatment, and a drive shaft and a propeller shaft using such a constant velocity universal joint. The method is provided to produce a high-frequency heat treatment coil including a heating section (71a, 71b, 71c) for heating a heat treatment portion of an outer joint member (51) for a constant velocity universal joint. The heating section (71a, 71b, 71c) is formed by machining in an integrated manner, and the heating section (71a, 71b, 71c) is joined to another section to complete the high-frequency heat treatment coil.Type: ApplicationFiled: November 2, 2012Publication date: September 4, 2014Applicant: NTN CORPORATIONInventors: Takeshi Shimasawa, Shintaro Suzuki, Atsushi Tokuda
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Patent number: 8816259Abstract: A system and method of restoring material properties is disclosed. A subject material may have one or more of its material properties restored by contacting a packed bed of a reactive material contained within a container with the subject material in which material properties are desired to be restored. The packed bed and the subject material may be heated to restore the material properties. The packed bed may be formed from boron, silicon or other appropriate materials. An inert atmosphere system may have an argon injection system or a helium injection system in communication with the container. A deoxidizing system may be in communication with the container for creating a vacuum within the container or injecting hydrogen into the container.Type: GrantFiled: April 6, 2012Date of Patent: August 26, 2014Assignee: Siemens AktiengesellschaftInventor: Gerald J. Bruck
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Publication number: 20140231415Abstract: An induction heating system includes a power source and an induction head. The converter output is at a voltage that is not greater than the voltage applied to the coil. The induction head includes a housing that houses a conductive coil disposed to induce heat in a workpiece and the coil is wound to be tuned to the output power. The coil is wound in a stacked spiral pattern with at least two turns in each layer. A flux concentrator is disposed about the coil with a potting compound around the concentrator and coil. Spacers maintain a desired separation between the head and the workpiece. The coil is a tube carrying a coolant. The head includes a wear surface that prevents contact of the coil and the workpiece, and a thermal insulator between the coil and wear surface. A non-contact temperature sensor is mounted to the housing.Type: ApplicationFiled: February 19, 2013Publication date: August 21, 2014Applicant: Illinois Tool Works Inc.Inventors: Paul D. Verhagen, Tiffany Anne Carter, Alan Dale Sherrill
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Patent number: 8735783Abstract: 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: GrantFiled: June 20, 2010Date of Patent: May 27, 2014Assignee: Inductotherm Corp.Inventors: Jean Lovens, Michel Fontaine, Bernard M. Raffner
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Patent number: 8716636Abstract: An arrangement for induction hardening a part including a pair of separate inductors electrically isolated from each other and configured to substantially surround a part when brought into close juxtaposition with each other. The inductor sections are powered by respective secondary inductor loops brought into close juxtaposition with a primary inductor loop connected to an ac power source which induces an ac current in each inductor section.Type: GrantFiled: October 4, 2010Date of Patent: May 6, 2014Inventors: John C. Bollman, Richard J. Roth
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Publication number: 20140110402Abstract: Methods and apparatus for reducing the occurrence of metal whiskers on surfaces are disclosed herein. In particular, the present disclosure teaches providing at least one source of electromagnetic energy to emit energy to reduce the occurrence of metal whiskers on a surface.Type: ApplicationFiled: October 19, 2012Publication date: April 24, 2014Applicant: THE BOEING COMPANYInventor: THE BOEING COMPANY
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Patent number: 8698054Abstract: An induction heating inductor and perforated susceptor are formed as an integral unit to provide a low cost, physically stable, efficient, and easily cleaned unit.Type: GrantFiled: September 16, 2010Date of Patent: April 15, 2014Inventor: Bernard C. Lasko
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Publication number: 20140093599Abstract: The present invention is one that heats the inside of the spinning pack in a short period of time while keeping temperature of an outer circumferential part of a spinning pack less than a maximum allowable temperature, and provided with: a magnetic path forming member that forms a magnetic path with a spinning pack arrangement space where the spinning pack is arranged to occupy the space and be positioned intermediate respective ends of the magnetic path forming member that border the space; and a magnetic flux generating winding that is provided so as to be wound to surround the spinning pack arrangement space.Type: ApplicationFiled: September 30, 2013Publication date: April 3, 2014Applicant: TOKUDEN CO., LTD.Inventors: Toru Tonomura, Yasuhiro Fujimoto
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Publication number: 20140008356Abstract: The present invention includes: a plurality of induction heating coils (11, 12, 13) which are disposed adjacently; capacitors (21, 22, 23) each of which is connected in series thereto; a plurality of inverters (30, 35, 31) each of which applies a high frequency voltage converted from a DC voltage to each series resonant circuit of the induction heating coil and the capacitor; and a control circuit (50) which operates the plurality of the inverters with a same frequency and current synchronization, controls so that a phase difference becomes minimal at a specific inverter, which supplies the maximum power to the plurality of the induction heating coils, between the high frequency voltage generated therefrom, and a resonant current flowing the series resonant circuit, and set a DC power supply voltage Vdc applied to the plurality of the inverters so that the output voltages (Vinv) become greater than mutual induction voltages (Vm).Type: ApplicationFiled: November 2, 2011Publication date: January 9, 2014Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.Inventors: Naoki Uchida, Keiji Kawanaka, Takahiro Ao
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Publication number: 20140007428Abstract: A heating device for heating a hollow component may include at least one inner induction coil and at least one outer induction coil, each configured to be heated. At least one element may be configured to influence a magnetic field formed between the inner and the outer induction coil during the operation of the heating device. The element may be arranged between the inner and the outer induction coils. Regions of the hollow component may be thinner and the thinner regions may be configured to heat more quickly than the remaining thicker regions. The thinner and thicker regions of the component may allow even heating of the component to be achieved.Type: ApplicationFiled: December 7, 2011Publication date: January 9, 2014Applicant: Mahle International GmbHInventors: Christoph Beerens, Antonio Menonna, Almir Zahirovic
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Patent number: 8592735Abstract: An induction heating apparatus for controlling the temperature distribution for heating a metal plate irrespective if it has a small thickness, is magnetic or nonmagnetic, and capable of coping with a change in the width of the plate, or meandering of the plate.Type: GrantFiled: February 15, 2008Date of Patent: November 26, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventor: Yoshiaki Hirota
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Publication number: 20130259546Abstract: A heating device includes a magnetic-field generating unit that generates an alternating-current magnetic field, an endless belt, and a heat transfer unit that includes a heat storage layer, a thermosensitive layer, and a diffusion layer. The thermosensitive layer extends so as to separate the magnetic-field generating unit and the heat storage layer from each other, and forms a magnetic path that allows a magnetic flux of the alternating-current magnetic field to pass therethrough in a direction in which the thermosensitive layer extends at a temperature below a Curie temperature and a magnetic path that allows the magnetic flux to extend therethrough and reach the heat storage layer at a temperature higher than or equal to the Curie temperature. The diffusion layer has a higher thermal conductivity than thermal conductivities of the thermosensitive layer and the heat storage layer, and diffusing heat of the belt.Type: ApplicationFiled: August 3, 2012Publication date: October 3, 2013Applicant: FUJI XEROX CO., LTD.Inventors: Yasutaka NAITO, Shigehiko HASEBA, Kazuyoshi ITOH
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Patent number: 8543178Abstract: An induction heating apparatus that can operate at current frequencies of greater than 60 Hz and at least 1 kW. The induction heating apparatus includes a high frequency power supply, a superconductive induction coil, and a fluid cooling system. A fluid cooling system is designed to cause a cooling fluid to flow at least partially about and/or through the superconductive induction coil.Type: GrantFiled: August 7, 2008Date of Patent: September 24, 2013Assignee: Ajax Tocco Magnethermic CorporationInventors: Theodore E. Burke, Frank Li