Conveyor Patents (Class 219/653)
  • Patent number: 11777072
    Abstract: This application discloses an electrode plate rolling apparatus and an electrode plate rolling method that are configured to roll an electrode plate. The electrode plate includes a coated region and an uncoated region. The electrode plate rolling apparatus includes a roller group, a heating part, and a cooling part. The heating part is configured to heat the electrode plate, and the cooling part is configured to cool the electrode plate. The heating part further includes an extension assembly, and the extension assembly can extend the uncoated region when the heating part heats the electrode plate. The electrode plate passes through the cooling part after passing through the heating part. The heating part and the cooling part are configured to reduce a difference between an extensibility parameter of the uncoated region and an extensibility parameter of the coated region.
    Type: Grant
    Filed: December 29, 2020
    Date of Patent: October 3, 2023
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Zhiyang Wu, Wang Zhang, Shisong Li, Chao Guo, Chao Yang
  • Patent number: 10010915
    Abstract: A method for producing a metal strip (1) by casting and rolling, wherein first a slab (3) is cast in a caster (2) by dispensing metal from a mold (4), wherein the slab (3) is deflected from the vertical direction to the horizontal direction in the region of a strand guide (5), wherein the slab (3) is then tempered in a furnace (6), wherein the slab (3) is rolled in a rolling train (7) after the furnace (6) and wherein the slab (3) is processed either in discontinuous batch operation or in continuous or semi-continuous operation in dependence on a specified manner of operation. According to the invention, in order to create optimal process conditions for all desired operating modes, the slab (3) to be rolled or the metal strip (1) being rolled is subjected to heating in the region of the rolling train (7) at least between two roll stands (8, 9, 10, 11, 12, 13, 14) by means of an inductor (15).
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: July 3, 2018
    Assignee: SMS Group GmbH
    Inventors: Christoph Klein, Christian Bilgen, Christian Klinkenberg, Michael Pander, Luc Neumann, Dieter Rosenthal, Cosimo Andreas Cecere
  • Patent number: 9060390
    Abstract: A cylindrical workpiece is mounted between opposing friction and non-friction guide rails and pushed through an induction coil arrangement by a pusher element positioned relative to the workpiece so that the pusher element introduces a force that moves the workpiece linearly forward within the induction coil arrangement between the two guide rails and rotationally by kinetic friction of the workpiece with the friction rail.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: June 16, 2015
    Assignee: INDUCTOHEAT, INC.
    Inventors: Valery I. Rudnev, Don L. Loveless
  • Publication number: 20150075679
    Abstract: An apparatus for induction heat treating and quenching a metallic part with rolls to convey, guide and restrain the part during processing. The apparatus includes a heating coil assembly with two sections of coils wound in opposite directions. The apparatus may include a quenching station with individual quenching sections having different pressures and flows of a liquid. A process for induction heat treating and quenching a metallic part in a series of rolls includes induction heating the part in a counter-wound coil assembly; quenching the part with a liquid while under restraint, and induction heating the part again after quenching. Controlling varying speed and the proximity of the metallic part to the coil assembly is ideal.
    Type: Application
    Filed: August 26, 2014
    Publication date: March 19, 2015
    Inventor: Rene Javier Hinojosa Garza
  • Patent number: 8907258
    Abstract: A method and apparatus for thermally processing material on a low-temperature substrate using pulsed light from a flash lamp is disclosed. Material is conveyed past the flash lamp. The pulses of light are formed by Pulse Width Modulation to tailor the shape of the pulses to generate a thermal gradient in the substrate that enables the material to be heated beyond the maximum working temperature of the substrate without damage. Its shaped pulse rate is synchronized to the conveyance speed of a conveyance system. By using the information from a feedback sensor, the thermal gradient is recalculated to alter the shape of the pulses in real time for optimizing subsequent curings in real time without powering down the curing apparatus. The combined pulse shaping and synchronization allow a temperature profile to be tailored in the sample that is uniformly cured in the conveyance direction.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 9, 2014
    Assignee: NCC Nano, LLC
    Inventors: Kurt A. Schroder, Steven C. McCool, Douglas K. Jackson
  • Publication number: 20140339221
    Abstract: A reinforced electric induction gas sealed tunnel furnace is provided. The assembled tunnel furnace has a tunnel wall that has the exterior wall transversely surrounded by structural reinforcing elements that give the tunnel structural strength to withstand a pressure differential between the interior and exterior of the tunnel, for example, when the tunnel interior environment is a vacuum and the tunnel exterior environment is at atmospheric pressure. One or more inductors form the induction coil system for the N tunnel furnace and can be located external to the tunnel wall, but within or adjacent to, the structural reinforcing elements. In alternative arrangements the structural reinforcing elements may be oriented with the length of the tunnel and installed either within or external to the tunnel. The tunnel and the structural reinforcing elements are sufficiently electromagnetically transparent to not interfere with inductive heating of a strip passing through the tunnel.
    Type: Application
    Filed: September 15, 2012
    Publication date: November 20, 2014
    Applicant: Inductotherm Corp.
    Inventor: Jean Lovens
  • Publication number: 20140284321
    Abstract: Disclosed is a magnetic annealing apparatus which performs a magnetic annealing on workpieces held in a workpiece boat by using a horizontal superconducting magnet as a magnetic field generating unit. The magnetic annealing apparatus includes a carrier configured to accommodate the workpieces before the magnetic annealing process; and a workpiece conveyance mechanism configured to convey the workpieces held in the carrier to the workpiece boat. The workpiece conveyance mechanism is capable of holding the workpieces in either a horizontal state or in a horizontal state.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Yuji Ono, Toru Ishii, Makoto Saito, Mitsuru Obara, Yasushi Takeuchi
  • Publication number: 20140224788
    Abstract: In one embodiment, a case transfer apparatus includes a base, a feeding device having a first end tapering to a second end that is coupled to the base, a motor disposed on the base, a rotatable feed wheel assembly disposed on the base and coupled to the motor, the rotatable feed wheel assembly adapted to receive at least one case via gravitational force from a feeding device, and a roller plate coupled to the motor and disposed adjacent the rotatable feed wheel assembly within a case receiving region where the at least one case is rotated and heated.
    Type: Application
    Filed: April 18, 2014
    Publication date: August 14, 2014
    Applicant: GIRAUD TOOL COMPANY, INC.
    Inventors: Douglas Hilton GIRAUD, David Bland ALDEN
  • Patent number: 8803046
    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: Grant
    Filed: August 9, 2010
    Date of Patent: August 12, 2014
    Assignee: Radyne Corporation
    Inventors: Gregg G. Warner, James D. Parker, John Justin Mortimer
  • Publication number: 20140124503
    Abstract: The invention proposes a method for heating a steel sheet wherein the generation of buckling can be prevented regardless of presence or absence of rolls restraining the steel sheet by antecedently heating the widthwise central portion of the steel sheet with a solenoid type induction heating coil having a convex form projected onto the surface of the steel sheet toward an upstream side in rapidly heating the continuously traveling steel sheet, whereby an isotherm of the steel sheet in the heating is a convex form toward the upstream side, so that a large wrinkle is generated on the steel sheet, and also proposes a heating apparatus used in this method.
    Type: Application
    Filed: July 25, 2012
    Publication date: May 8, 2014
    Applicant: JFE STEEL CORPORATION
    Inventors: Yoshimichi Hino, Hirokazu Sugihara
  • Publication number: 20140048530
    Abstract: A sealing device for slot-type vacuum glass is provided with a slot (11) through which a glass sheet to be sealed passes, inductive heating coils (14) are arranged around the slot, and the circumference of the glass sheet to be sealed is gradually hermetically sealed through metal brazing process as the glass sheet to be sealed passes through the slot via conveyor rollers (13). The device is further provided with a casing (10-1) and press wheels or rollers (15), and the slot extends through the casing, the inductive heating coils are arranged inside the casing around the slot, the press wheels or rollers (15) are set in the casing. The device is only required to be arranged in the middle of conveyor rollers in order to ensure that the glass sheet can pass through the slot, thereby simplifying equipment and sealing process, enhancing sealing efficiency.
    Type: Application
    Filed: December 22, 2010
    Publication date: February 20, 2014
    Applicant: LUOYANG LANDGLASS TECHNOLOGY CO., LTD
    Inventors: Yanbing Li, Zhangsheng Wang
  • Publication number: 20130312478
    Abstract: Provided is a method of manufacturing a hot pressed product with which a heating coil of the induction heating device is moved in a feeding direction of the metal strip and in a direction opposite to the feeding direction of the metal strip so as to reduce variation in a feed velocity of the metal strip relative to the heating coil of the induction heating device.
    Type: Application
    Filed: May 8, 2013
    Publication date: November 28, 2013
    Applicant: TOPRE CORPORATION
    Inventor: MASANORI KOBAYASHI
  • Patent number: 8546734
    Abstract: A magnetic separator for spacing a plurality of workpieces in face-to-face relationship includes upper and lower guide plates that define a passage having an inlet opening and an outlet opening for workpieces moving through the separator, with the inlet opening having a funnel-shaped configuration adapted to admit and align any misaligned workpieces moving into the passage. Upper and lower pole pieces adjacent the upper and lower guide plates provide a magnetic field operative to orient workpieces in the passage. The upper guide plate has an intermediate portion that extends between an inlet and outlet end portions of the upper guide plate, with the inlet end portion extending transverse to the intermediate portion of the upper guide plate. The passage has an intermediate portion disposed between the inlet opening and outlet openings, with the inlet opening being substantially larger in cross-sectional area than the intermediate portion of the passage.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: October 1, 2013
    Assignee: Nordson Corporation
    Inventors: Raymond J. Baxter, Robert G. Zuccarelli
  • Patent number: 8536498
    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: Grant
    Filed: February 9, 2006
    Date of Patent: September 17, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventor: Yoshiaki Hirota
  • Publication number: 20130168386
    Abstract: The present invention relates to a method and device for uniformly heating products, the products (8, 15) being heated by a high-frequency electromagnetic alternating field. The method and the device are characterised in that the high-frequency electromagnetic alternating field for heating the products (8, 15) is produced by means of a semiconductor generator (4). By using a semiconductor generator (4), temperature fluctuations in the event of fluctuating load due to the transport of the products (8, 15) through the heating volume (7, 17) are reduced, so that a more uniform temperature of the products (8, 15) can be achieved in the heating process.
    Type: Application
    Filed: August 9, 2011
    Publication date: July 4, 2013
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Thomas Pfeiffer, Peter Eisner
  • Patent number: 8461496
    Abstract: An induction heating device includes a take-off roller, the take-off roller adapted to unwind a wound electrode plate having a coating portion and a non-coating portion, a guide roller adapted to feed the electrode plate, an induction heater above the guide roller, the induction heater being spaced a predetermined distance from the guide roller and the electrode plate, and a winding roller, the winding roller adapted to wind the electrode plate fed from the guide roller.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: June 11, 2013
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Dongho Jeong, Tatsuya Hashimoto, Wonhui Lee
  • Publication number: 20120288638
    Abstract: An induction heater includes an electrically conductive coil that produces an alternating magnetic field when current is applied to the coil. The magnetic field is used to heat metal containers such as tubular containers. The coil extends about a heating path of travel that extends along the longitudinal axis of the coil. A transport device is provided to move the container through the magnetic field such that the longitudinal axis of the container is generally perpendicular to the longitudinal axis of the coil. This allows for heating the container at the twelve and six o'clock positions. The transport device functions to roll the container along the heating path. In a preferred embodiment, the coil is wrapped about a core with a generally rectangular shape. Ferromagnetic members may optionally be used to further shape the magnetic field. The methods and apparatus may be used for regular or irregularly shaped containers.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 15, 2012
    Applicant: Nordon Corporation
    Inventors: Raymond Baxter, Howard Podolny, Robert Zuccarelli
  • Patent number: 8247741
    Abstract: A system is provided for heating or cooling discrete, linearly conveyed substrates having a gap between a trailing edge of a first substrate and a leading edge of a following substrate in a conveyance direction. The system includes a chamber, and a conveyor operably configured within the chamber to move the substrates through at a conveyance rate. A plurality of individually controlled temperature control units, for example heating or cooling units, are disposed linearly within the chamber along the conveyance direction. A controller is in communication with the temperature control units and is configured to cycle output of the temperature control units from a steady-state temperature output as a function of the spatial position of the conveyed substrates within the chamber relative to the temperature control units so as to decrease temperature variances in the substrates caused by movement of the substrates through the chamber.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: August 21, 2012
    Assignee: PrimeStar Solar, Inc.
    Inventors: Kevin Michael Pepler, James Joseph Jones, Sean Timothy Halloran
  • Patent number: 8113190
    Abstract: A compact conveyor oven is disclosed comprising a cooking chamber, thermal heating source, conveyor means and independent top and bottom airflow within the cooking chamber wherein substantially equal pressurization of the top and bottom airflows is achieved within the compact footprint.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: February 14, 2012
    Assignee: Turbochef Technologies, Inc.
    Inventor: Carl J. Dougherty
  • Publication number: 20110248026
    Abstract: A method and apparatus for thermally processing material on a low-temperature substrate using pulsed light from a flash lamp is disclosed. Material is conveyed past the flash lamp. The pulses of light are formed by Pulse Width Modulation to tailor the shape of the pulses to generate a thermal gradient in the substrate that enables the material to be heated beyond the maximum working temperature of the substrate without damage. Its shaped pulse rate is synchronized to the conveyance speed of a conveyance system. By using the information from a feedback sensor, the thermal gradient is recalculated to alter the shape of the pulses in real time for optimizing subsequent curings in real time without powering down the curing apparatus. The combined pulse shaping and synchronization allow a temperature profile to be tailored in the sample that is uniformly cured in the conveyance direction.
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Applicant: NCC NANO, LLC
    Inventors: KURT A. SCHRODER, STEVEN C. McCOOL, DOUGLAS K. JACKSON
  • Publication number: 20110240633
    Abstract: A cylindrical workpiece is mounted between opposing friction and non-friction guide rails and pushed through an induction coil arrangement by a pusher element positioned relative to the workpiece so that the pusher element introduces a force that moves the workpiece linearly forward within the induction coil arrangement between the two guide rails and rotationally by kinetic friction of the workpiece with the friction rail.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Inventors: Valery I. RUDNEV, Don L. LOVELESS
  • Patent number: 8030602
    Abstract: An induction foil cap sealer of the present invention includes a cap foil sealer head installed along a conveyor. A controller is operatively connected to the cap sealer head. An infrared detector is adapted to obtain temperature data from a work piece on the conveyor. An electronic memory storage device is capable of storing electronic data, and is operatively connected to the controller. A comparator is in communication with the controller, the electronic memory and the infrared detector. The comparator compares the temperature data with pre-stored electronic data in the electronic memory storage and sends a signal to the controller based on the comparison.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: October 4, 2011
    Inventor: Kenneth J Herzog
  • Patent number: 7989736
    Abstract: Disclosed is a heat treatment system for semiconductor devices. The heat treatment system is used in a heat treatment process for semiconductor devices, such as a crystallization process for an amorphous silicon thin film or a dopant activation process for a poly-crystalline silicon thin film formed on a surface of a glass substrate of a flat display panel including a liquid crystal display (LCD) or an organic light emitting device (OLED).
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: August 2, 2011
    Assignee: Viatron Technologies Inc.
    Inventors: Wang Jun Park, Jung Bae Kim, Young Jae Ahn, Hyoung June Kim, Dong Hoon Shin
  • Publication number: 20110120988
    Abstract: Apparatuses and methods are disclosed for heating objects. The apparatus may include two conveyer belts. Each conveyer belt may include a plurality of teeth. At least a portion of the two conveyer belts may be in parallel to each other. In the parallel portion, the conveyer belts may include opposite teeth that are symmetrical to each other and the object may be fitted in the opening of the symmetrical teeth and secured by the surrounding teeth.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Inventors: Jiangbo LUO, Xiaoqun Lou
  • Patent number: 7887746
    Abstract: An apparatus for thermally treating and coloring a plurality of curved suture needles. The apparatus includes a conveyer for transferring the plurality of curved suture needles from a source of curved suture needles to a receiver, a housing positioned adjacent the conveyer, the housing having a first end, a second end, and an opening running from the first end to the second end, the opening aligned with the conveyer to enable the plurality of curved suture needles to pass therethrough, a heat source located within the housing for heating the plurality of curved suture needles as the plurality of curved suture needles are transferred by the conveyer from the first end of the housing to the second end of the housing and a system for providing a gas mixture containing a fractional concentration of oxygen to oxidize and colorize the surfaces of the plurality of curved suture needles as the plurality of suture needles pass through the housing.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: February 15, 2011
    Assignee: Ethicon, Inc.
    Inventors: Frank Richard Cichocki, Jr., David Demarest, Gregory Hollin, Eugene D. Reynolds
  • Publication number: 20100264133
    Abstract: An induction heating device includes a take-off roller, the take-off roller adapted to unwind a wound electrode plate having a coating portion and a non-coating portion, a guide roller adapted to feed the electrode plate, an induction heater above the guide roller, the induction heater being spaced a predetermined distance from the guide roller and the electrode plate, and a winding roller, the winding roller adapted to wind the electrode plate fed from the guide roller.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 21, 2010
    Inventors: Dongho Jeong, Tatsuya Hashimoto, Wonhui Lee
  • Patent number: 7767940
    Abstract: A device for at least partially drying the outer coating on a stick electrode in the form of a generally straight center welding wire of magnetic metal with an axis and surrounded by an extruded pliant mass with a settable binder. The device comprises a conveyor to transport a succession of the electrodes along a given path, a multi-turn induction heating coil extending along the path and spaced from the moving electrodes and a power source for passing an alternating current through the coil to induce an alternating voltage difference in the wire to cause AC current flow in the wire to heat the wire.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: August 3, 2010
    Assignee: Lincoln Global, Inc.
    Inventor: Gregory A. Gerth
  • Patent number: 7745355
    Abstract: Aspects of the invention are found in a heating component having a composite material coated on a support. The composite material includes a fluorinated or silicone polymer and inductively-heatable particles. Additional aspects of the invention are found in a heating belt having a flexible support coated with a composite material. The composite material includes a polymer material and inductively-heatable particles. Further aspects of the invention are found in a system for heating an article. The system includes a heating belt and a field generator. The heating belt includes a flexible support coated in a composite material. The composite material includes a polymeric matrix and inductively-heatable particles. The field generator induces a field about the heating belt. The inductively-heatable particles heat in the presence of the field.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: June 29, 2010
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Peter Dwight Spohn, Richard George Hoeck, Satish S. Sharma
  • Patent number: 7696457
    Abstract: A magnetic separator has a funnel-shaped inlet opening that is adapted to admit and align any misaligned workpieces moving into the separator. A view port for enables viewing of the pole pieces from a location other than the inlet opening and the outlet opening. The view port is preferably formed in a lower guide plate. The separator has a jack screw adjustment mechanism for adjusting the vertical position of the upper guide plate relative to the lower guide plate. An adjustment mechanism for adjusting the vertical position of the upper pole piece relative to the upper guide plate includes an adjustment screw that is accessible from the top of the separator The upper guide plate is easily removable from the separator by removing only one fastener per side.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: April 13, 2010
    Assignee: Nordson Corporation
    Inventors: Raymond J. Baxter, Robert G. Zuccarelli
  • 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
  • Patent number: 7544918
    Abstract: An induction sealer system which includes a speed monitor to ensure proper sealing of containers.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: June 9, 2009
    Inventor: Kenneth J. Herzog
  • Patent number: 7528352
    Abstract: An induction foil cap sealer of the present invention includes a cap foil sealer head installed along a conveyor. A controller is operatively connected to the cap sealer head. An infrared detector is adapted to obtain temperature data from a work piece on the conveyor. An electronic memory storage device is capable of storing electronic data, and is operatively connected to the controller. A comparator is in communication with the controller, the electronic memory and the infrared detector. The comparator compares the temperature data with pre-stored electronic data in the electronic memory storage and sends a signal to the controller based on the comparison.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: May 5, 2009
    Inventor: Kenneth J. Herzog
  • Publication number: 20080128057
    Abstract: A process of induction-heating helical springs, more particularly valve springs, for the purpose of carrying out subsequent hardening by quenching and tempering, wherein the helical springs, while being individually fixed and rotatingly driven, are guided through an electro-magnetic alternating field.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 5, 2008
    Inventors: Thorsten Hufnagel, Rudolf Bonse
  • Patent number: 7323666
    Abstract: Aspects of the invention are found in a heating component having a composite material coated on a support. The composite material includes a fluorinated or silicone polymer and inductively-heatable particles. Additional aspects of the invention are found in a heating belt having a flexible support coated with a composite material. The composite material includes a polymer material and inductively-heatable particles. Further aspects of the invention are found in a system for heating an article. The system includes a heating belt and a field generator. The heating belt includes a flexible support coated in a composite material. The composite material includes a polymeric matrix and inductively-heatable particles. The field generator induces a field about the heating belt. The inductively-heatable particles heat in the presence of the field.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 29, 2008
    Assignee: Saint-Gobain Performance Plastics Corporation
    Inventors: Peter Dwight Spohn, Richard George Hoeck, Satish S. Sharma
  • Patent number: 7291817
    Abstract: An apparatus and process are provided for scan induction heating of a workpiece. The workpiece is moved through an inductor to inductively heat treat features of the workpiece with electric power of varying frequency and duty cycle to control the magnitude of electric power as the frequency changes.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: November 6, 2007
    Assignee: Inductotherm Corp.
    Inventors: Kuno Weiss, Oleg S. Fishman
  • Patent number: 7176425
    Abstract: The invention relates to a device (11) and a method of regulating a temperature of a drive element (2) which can be employed in a deep-freezing application in particular, such as a band, belt or similar, in which at least a part-region of the drive element (2) is heated at least during a relative displacement between the drive element (2) and a machine part. The drive element (2) is adjusted to a pre-definable minimum temperature and a pre-settable minimum temperature is maintained. To this end, the device (11) has at least one module (12), which supplies the drive element (2) with mechanical, electrical or electromagnetic energy, for example.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: February 13, 2007
    Assignee: TGW Transportgeräte GmbH
    Inventors: Markus Rohrauer, Wolfgang Ensinger
  • Patent number: 7062845
    Abstract: A laser drilling system for drilling blind vias in printed circuit board panels, multichip modules and chipscale packages with top and bottom surfaces and which include multiple dielectric polymer and metal layers. The system includes a first laser module comprising a laser able to form at least one via per pulse through one or more polymer layers. The vias are circular or non-circular in shape. An articulated arm is adapted to move at a speed of about 200 inches per second and at an acceleration of about 5 g's or more. A beam delivery unit is attached to the articulated arm and a conveyor adapted to move panels at a constant speed. The first laser module positioned on a separate track from the conveyor moves at a faster rate than the conveyor to drill the top surface. A second laser module is positioned to move on another separate track from the conveyor movable at a faster rate so as to drill the bottom surface.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: June 20, 2006
    Assignee: Laservia Corporation
    Inventor: Larry W. Burgess
  • Patent number: 7049565
    Abstract: The present invention utilizes a dynamically controlled frequency system for the process of induction heating semi-solid material. Semi-solid precursor material is machined into billets of a desired size. These billets are subjected to one or more heating processes utilizing an induction heating process that is dynamically controlled by adjusting the frequency of an induction coil current to achieve a desired temperature in a semi-solid material billet.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: May 23, 2006
    Inventors: Navtej Singh Saluja, Alfredo Riviere
  • Patent number: 7015436
    Abstract: An apparatus for the heat treatment of foodstuffs and feedstuffs, in particular for the production of bakery products, such as wafer products, has a continuously moving conveying device, a device for depositing the product on the conveying device, and a device for removing the heat-treated product from the conveying device. The conveying device is formed by an endless conveyor belt that can be circulated between two return rollers and which is formed by a ferromagnetic metal strip, in particular by a steel strip. A heating device is provided on one side of the conveyor belt and includes a group of induction heaters.
    Type: Grant
    Filed: April 7, 2004
    Date of Patent: March 21, 2006
    Assignee: Masterfoods Austria OHG
    Inventors: Rudolf Fila, Joseph Roeckel, Garry Dean Moppett, Stefan Trojer
  • Patent number: 7015437
    Abstract: This present invention for an in-line fluid heater suitable for heating ultrapure fluids utilizes a radiant energy source that generates infrared radiation to heat a fluid. The fluid to be heated is passed through a vessel such as a tube. The vessel, formed of PFA or polytetraflouroethylene, is coiled around the lamp or lamps. A chamber surrounds the lamp or lamps and the vessel. A temperature sensor at the outlet end of the vessel sends a signal to a controller that adjusts either the flow of fluid through the vessel or the intensity of the lamp or lamps, thereby controlling the fluid temperature at the outlet. The system is useful in any application requiring an ultraclean, non-contact method of raising the temperature of various liquids and gases.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: March 21, 2006
    Assignee: TriFact Solutions, Inc.
    Inventors: Thomas Johnston, Timothy Vaughn
  • Patent number: 6963057
    Abstract: Multiple workpieces are inductively heated by passing them through one or more induction heating coils. Passage of a section of each workpiece through a coil may oscillate in the forward and reverse directions, independent of the movement of the other workpieces, one or more times, to selectively heat each workpiece while operating the power supplies for each of the induction heating coils at constant current, voltage and/or power to maximize the efficiency of the electrical circuit and minimize the requirements for power supply control circuitry.
    Type: Grant
    Filed: April 18, 2003
    Date of Patent: November 8, 2005
    Assignee: Inductotherm Corp.
    Inventors: Wallace Shane Swanger, Edward J. Rylicki, Oleg S. Fishman
  • Patent number: 6903315
    Abstract: In a method for wrapping an article in a sheet of thermoplastic wrapping material, the temperature of an at least partly metal belt (5) looped and induction heated to seal wrapping material (4) is detected by detecting a first signal (S1) to the voltage (V) applied to the belt (5), and a second signal (S2) related to the current (I) circulating along the belt (5); and by calculating the electric resistance (R) of the belt (5) as a function of the first and second signal (S1, S2); the electric resistance (R) of the belt (5) being related to the temperature (T) of the belt (5).
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: June 7, 2005
    Assignee: G. D Societa' per Azioni
    Inventors: Mario Spatafora, Bruno Tommasini
  • Patent number: 6875965
    Abstract: A multiple head induction sealing system includes at least two ferrite cores mounted which are channel-shaped and arranged so that the open ends of the channels are aligned either perpendicular or parallel to a workflow direction established as the objects to be heated pass beneath the unit. A litz wire coil is disposed proximate to each ferrite core which produces an electromagnetic field within the ferrite core. The ferrite cores and litz wire coil are adapted to direct the electromagnetic field toward an object to heat it.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: April 5, 2005
    Inventor: Kenneth J. Herzog
  • Patent number: 6867397
    Abstract: A heating apparatus includes a steel belt conveyer having a steel belt with a top part that transports and heats, and induction heating coils having an elliptical or a rectangular shape disposed under or over the top part of the steel belt such that the longitudinal direction of each of the induction heating coils forms an angle of 45° to 135° inclusive with the moving direction of the steel belt. A heating stabilization device can be used in such an apparatus. The heating stabilization device has one or a plurality of rollers that are brought into contact with the top surface of the top part of the steel belt so that the top part of the steel belt is prevented from rising during a heating operation.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: March 15, 2005
    Assignee: Ajinomoto Co., Inc.
    Inventors: Takeshi Nishinomiya, Makoto Wakabayashi, Morihiro Sada, Hiroshi Takahashi, Hirofumi Terazaki
  • Patent number: 6864461
    Abstract: A belt-type fixing device for an image forming apparatus is capable of raising a temperature to a level suitable for a fixing process in a short period of time with high heating efficiency. A fixing belt is entrained in spanning relation between a heating plate providing a heat generator on the inner surface of the semi-cylindrical plate and a pressing pad disposed at a distance from the heating plate. A pressing roller is disposed at a position opposing the pressing pad. The fixing belt is revolved by rotating the pressing roller. A recording medium having a toner adhered thereto is caused to pass through a nip portion of the fixing belt and the pressing roller.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: March 8, 2005
    Assignee: Minolta Co., Ltd.
    Inventors: Eiji Okabayashi, Takashi Kidokoro
  • Patent number: 6794622
    Abstract: A method and a device for the removal of rust and paint from a metal surface, wherein induction heat is used for heating the metal surface. The device includes an electrical power supply coupled to an induction coil. A wheel and a tachometer on the device measure the velocity of the device as the wheel rotates on the metal surface. A control unit regulates the power output of the electrical power supply based upon the measured velocity of the device.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: September 21, 2004
    Assignee: Jak. J. Alveberg AS
    Inventors: Bjorn Erik Alveberg, Tom Arne Baann
  • Publication number: 20040118833
    Abstract: The invention relates to a device (11) and a method of regulating a temperature of a drive element (2) which can be employed in a deep-freezing application in particular, such as a band, belt or similar, in which at least a part-region of the drive element (2) is heated at least during a relative displacement between the drive element (2) and a machine part. The drive element (2) is adjusted to a pre-definable minimum temperature and a pre-settable minimum temperature is maintained. To this end, the device (11) has at least one module (12), which supplies the drive element (2) with mechanical, electrical or electromagnetic energy, for example.
    Type: Application
    Filed: November 21, 2003
    Publication date: June 24, 2004
    Inventors: Markus Rohrauer, Wolfgang Ensinger
  • Publication number: 20030213798
    Abstract: The present invention utilizes a dynamically controlled frequency system for the process of induction heating semi-solid material. Semi-solid precursor material is machined into billets of a desired size. These billets are subjected to one or more heating processes utilizing an induction heating process that is dynamically controlled by adjusting the frequency of an induction coil current to achieve a desired temperature in a semi-solid material billet.
    Type: Application
    Filed: February 28, 2003
    Publication date: November 20, 2003
    Inventors: Navtej Singh Saluja, Alfredo Riviere
  • Publication number: 20030164372
    Abstract: For optimum induction heating of metallic strips (1) of differing widths—particularly in the edge region—one multicoil transverse field inductor is positioned both above and below the strip (1) to be heated, whose coil axes are positioned vertically to the strip surface. In this case, each inductor comprises at least one inductor segment (2, 3; 7; 15; 17), which is constructed as a coil composite of multiple approximately rectangular coils (8, 9, 10; 16; 18) which extend predominantly transversely to the transport direction of the strip (1), the coils (8, 9, 10; 16; 18) having different, stepped transverse extensions and the coil having the highest transverse extension extending at most up to the lateral edges of the widest strip and the coil having the lowest transverse extension extending at most up to the lateral edges of the narrowest strip.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 4, 2003
    Inventor: Dieter Schluckebier
  • Patent number: 6608290
    Abstract: The invention concerns heating metal strips or other coilable strand metal object to an elevated temperature, wherein the metal object is passed in a heating section through a furnace chamber that is made at least partly of an insulating and electrically non-conductive material while being heated through transverse flux induction heating (TFIH) by transverse flux induction heating elements located outside of the chamber which contains a protective non-oxidizing gas or gas mixture. The metal object is of stainless steel that has been cold rolled to a very high degree of surface reflectivity. The cold rolled stainless steel object is passed through the furnace chamber and is heated in the chamber to a processing temperature between 700 and 1200° C. The cold rolled stainless steel object is maintained at that temperature between 700 and 1200° C.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: August 19, 2003
    Assignee: Avesta Sheffield Aktiebolag
    Inventor: Philip S. Robinson