Heating Element Structure Patents (Class 219/552)
  • Publication number: 20100122975
    Abstract: A glow plug assembly (110) has a metallic heater probe (118) supported within a metal shell (112). A transition zone (144) at the base of the shell (112) includes a membrane (146) and a tube portion (148). A first open end (130) of the heater probe (118) is formed with a reduced diameter pilot section (150) that mates with the tube portion (148) to establish a joint area between the components. The membrane (146) may be made elastically deflectable so as to accommodate integration of a pressure sensor (156) in the glow plug assembly (110).
    Type: Application
    Filed: November 17, 2008
    Publication date: May 20, 2010
    Applicant: FEDERAL-MOGUL ITALY SRL.
    Inventors: John A. Burrows, Marcello Cino, Sandro Goretti
  • Patent number: 7714256
    Abstract: The present invention relates to a heating element for heating at least one surface contacted at times by a user, with a plurality of heating conductors or heating conductor sections that are directly or indirectly connected electrically to one another, at least in part by mutual contact, with at least one heating conductor or heating conductor section which, upon exceeding a permissible maximum temperature, at least temporarily loses its electrical conductivity at least in part. It is provided that the electrical resistance of at least two heating conductors or heating conductor sections is dependent at least in part on its mechanical strain, that these heating conductors or heating conductor sections are electrically connected to one another in parallel, and that they are separated from one another at least in sections by a spacing zone in order to prevent electrical connection between them in spacing zone.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: May 11, 2010
    Assignee: W.E.T. Automotive Systems AG
    Inventor: Michael Weiss
  • Publication number: 20100108664
    Abstract: An apparatus includes a hollow heater. The hollow heater has a hollow supporter, a heating element and at least two electrodes. The at least two electrodes are separately and electrically connected to the heating element. The hollow supporter defines a hollow space, the hollow supporter has an inner surface and an outer surface. The heating element disposed on one of the surfaces of the hollow supporter. The heating element includes a carbon nanotube structure. The carbon nanotube structure includes a plurality of carbon nanotubes combined by wan der Waals attractive force.
    Type: Application
    Filed: July 23, 2009
    Publication date: May 6, 2010
    Applicants: Tsinghua University, HON HAI Precision Industry CO., LTD.
    Inventors: Chen Feng, Kai Liu, Ding Wang, Kai-Li Jiang, Chang-Hong Liu, Shou-Shan Fan
  • Publication number: 20100108657
    Abstract: An electrically heatable honeycomb body is formed with at least one wound stack of sheet-metal foils. A first end of the stack is connected to an electrical terminal and a second end is connected to an electrical ground. The stack has a plurality of sheet-metal foils which are in electrical contact with one another and which are at least partially structured and determine, in the direction of the structures, a height of the stack. The stack has at least one curvature with a small radius of curvature and a relatively large radius of curvature. A curvature section including the at least one curvature has at least one zone with increased electrical resistance starting from the small radius of curvature and extending over part of the height of the stack. A motor vehicle having at least one honeycomb body, is also provided.
    Type: Application
    Filed: November 30, 2009
    Publication date: May 6, 2010
    Applicant: EMITEC GESELLSCHAFT FUR EMISSIONSTECHNOLOGIE MBH
    Inventors: Jörg-Roman Konieczny, Rolf Brück, Jan Hodgson
  • Patent number: 7709770
    Abstract: A heating device is presented for surface heating of a body so as to maintain a required temperature of the body. The heating device comprises an electrical heating element and a power source for supplying a required voltage thereto. The heating element comprises first and second conductors, wherein the first conductor is made of a material with relatively high specific resistivity as compared to that of the second conductor, and the second conductor is made of a material with high heat conductivity. The first and second conductors are accommodated in spaced-apart parallel relationship along their lengths such that, when they are connected to the power source, electric currents flow in the conductors in opposite directions, and magnetic fields created in the vicinity of the first and second conductors are completely compensated. The first conductor thus serves as a heater and the second conductor as a heat diffuser.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: May 4, 2010
    Assignee: HTTP—Hypothermia Therapy Ltd.
    Inventor: David Bikhovsky
  • Publication number: 20100101495
    Abstract: A vapor deposition reactor and associated method are disclosed that increase the lifetime and productivity of a filament-based resistive-heated vapor deposition system. The reactor and method provide for heating the filament while permitting the filament to move as it expands under the effect of increasing temperature while limiting the expanding movement of the filament to an amount that prevents the expanding movement of the filament from creating undesired contact with any portions of the reactor.
    Type: Application
    Filed: January 4, 2010
    Publication date: April 29, 2010
    Applicant: CREE, INC.
    Inventors: David Todd Emerson, Robert Allen Garner, Michael John Bergmann, Keenan Carlyle Brown, Michael Allen Pennington, Thomas Goldthwaite Coleman
  • Publication number: 20100103721
    Abstract: A heater includes at least two leads, and a heating element which is formed between the at least two leads, a material of the heating element being different from a material of the at least two leads such that a location of a hot spot in the heater is controllable based on a polarity of current in the heater.
    Type: Application
    Filed: March 24, 2006
    Publication date: April 29, 2010
    Applicant: International Business Machines Corporation
    Inventors: Supratik Guha, Hendrik F. Hamann
  • Patent number: 7702224
    Abstract: A spa heater includes a heater element having a single outer wall with indentations near each end for receiving clips for positioning the heater element. The indentations are preferably stamped or formed by some other method which does not weaken the outer wall and the heater element is retained by use of the clips in the indentations. Incorporation of the indentations and the clips allows use of a single thin outer wall thereby reducing cost. The heater element is held and sealed by a combination of O-rings, stepped washers, snap rings clips, and caps. An electrical connection may be made using ring type wire ends residing under the caps or by connecting to posts extending from the ends of the heater element. The heater element is preferably a spiral heater element and a titanium outer wall may be used to resist corrosion and increases heater element life.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: April 20, 2010
    Inventor: Joseph G. Elnar
  • Publication number: 20100051601
    Abstract: This invention relates to an electric cartridge heater and a method of operation, suitable for use in producing high purity silicon in solar cells or solar modules. The apparatus includes a single-piece elongated heater bar having a length, a first end, and a second end. The apparatus also includes a slot beginning at the first end and running a portion of the length, and the slot dividing the heater bar into a first arm and a second arm. An elbow at the second end joins the first arm and the second arm together. The apparatus also includes a first electrode in electrical communication with the first arm, and a second electrode in electrical communication with the second arm.
    Type: Application
    Filed: August 26, 2009
    Publication date: March 4, 2010
    Applicant: BP Corporation North America Inc.
    Inventor: Roger F. Clark
  • Patent number: 7667166
    Abstract: A heat-generating element of a heating device for heating air includes at least one PTC element and, lying on opposing side surfaces of the PTC element, electric strip conductors. A heat-generating element that is improved with a view to safety from electric flashovers and leakage currents is created with the invention under consideration by providing an insulating gap between the PTC element and the positioning frame material that circumferentially surrounds the frame opening. Also disclosed is a heating device for heating air with multiple heat-generating elements, each heat-generating element comprising at least one PTC element and, lying on opposing side surfaces of the PTC element, electric strip conductors and multiple heat-emitting elements that are arranged in parallel layers and that are held in position in a frame on opposing sides of the heat-generating element with a spring bias.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: February 23, 2010
    Assignee: Catem GmbH & Co. KG
    Inventors: Michael Zeyen, Kurt Walz, Michael Niederer, Franz Bohlender
  • Publication number: 20100008655
    Abstract: A hot air welder capable of reaching temperatures of at least 700° C., comprising a housing with an electric motor, at least one fan for forcibly moving air across a heating element and out of the gun and wherein the heating element is formed from a plurality of electrical wire winding interposed through a series of axially aligned ceramic disks, each disk having a number of circumferentially aligned openings through which the wire windings are oriented and mechanisms for selectively operating the device and electrically controlling the temperature of the heating element.
    Type: Application
    Filed: March 6, 2009
    Publication date: January 14, 2010
    Inventors: CLINT TACKITT, XIANGHE PAN
  • Patent number: 7642489
    Abstract: The present invention relates to a flexible electrothermal composite. In one embodiment, a flexible electrothermal composite includes a flexible polymer matrix and a number of carbon nanotubes dispersed in the matrix, the carbon nanotubes forming a plurality of conductive network in the polymer. The flexible electrothermal composite has high flexibility, resistance and intensity.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: January 5, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Chang-Hong Liu, Shou-Shan Fan
  • Publication number: 20090321414
    Abstract: The invention relates to a heating device and in particular to an element of a floor heating device. Known floor heating devices comprise heating means which are arranged underneath floor coverings, for example, below stone plates, tiles, parquet elements or laminated panels. Those heating means can be made of electrically heatable films which are arranged close to the surface of a covering in order to directly heat the room.
    Type: Application
    Filed: February 8, 2005
    Publication date: December 31, 2009
    Inventors: Dieter Döhring, Heinz Zorn, Gerhard Kremer, David Macher
  • Publication number: 20090316753
    Abstract: A temperature system is provided with magnetic field suppression. In one embodiment, the temperature system comprises a plurality of conductors patterned to conduct current in directions that generate 2N multipole magnetic moments that interact to suppress the magnetic fields generated by the current conducting through the plurality of conductors, where N is an integer that is greater than one.
    Type: Application
    Filed: June 23, 2008
    Publication date: December 24, 2009
    Inventor: Michael D. Bulatowicz
  • Publication number: 20090314059
    Abstract: A ceramic heater is incorporated in a gas sensor capable of detecting the concentration of a specific gas contained in a target gas. The ceramic heater is composed of a heater base member made of ceramic, a heat generating member embedded in the heater base member, and electrode pads electrically connected to contact metal members. The contact metal members are electrically connected to external leads in the gas sensor. In the ceramic heater the electrode pads are formed on a contact area of the outer peripheral surface of the heater base member. The contact area includes a rear end part of the heater base member. On assembling the ceramic heater into the gas sensor, the contact metal members slid on the electrode pads formed in the contact area without directly contacting onto the outer peripheral surface of the heater base member.
    Type: Application
    Filed: May 21, 2008
    Publication date: December 24, 2009
    Applicant: DENSO CORPORATION
    Inventor: Masanobu Yamauchi
  • Patent number: 7633038
    Abstract: Provided are a heated exhaust pipeline, a related plurality of heating elements attached to an exhaust pipeline, and a method of controlling the plurality of heating elements. Individual heating elements are characterized by a temperature indicator and/or an alarm.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: December 15, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyun-Su Seol
  • Patent number: 7626146
    Abstract: A heat trace assembly for heating a conduit is provided that comprises at least one preformed heat trace section adapted to be placed around at least a portion of the conduit and a connector secured to the heat trace section. The connector is adapted for coupling the heat trace section to an adjacent heat trace section, and the heat trace section and the connector have mating mechanical features to allow the heat trace section to be quickly connected to and disconnected from the conduit. Additionally, a heat trace junction is provided that preferably defines a cross configuration and comprises a plurality of arms extending from a central portion of the heat trace junction. The plurality of arms are deformable to conform to a junction within a conduit system. Thermal insulation jacket configurations are also provided in accordance with several embodiments of the present invention.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: December 1, 2009
    Assignee: Watlow Electric Manufacturing Company
    Inventors: Louis P. Steinhauser, Christopher C. Lanham
  • Patent number: 7619187
    Abstract: Disclosed herein is a porous ceramic heating element wherein 0.08 to 1.00 wt % of a foaming agent is added in 99.00 to 99.92 wt % of a mixture of an inorganic material, a binder, a conductive material, a hardener, a bonding agent and a dispersion medium and mixed with the mixture. The bonding strength of porous foam formed in the ceramic heating element is increased, thereby providing an effect that the entire structure is hardened.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: November 17, 2009
    Inventors: Changhee Kim, Taehee Kim
  • Publication number: 20090261087
    Abstract: An electric resistance heating element for an oven is provided. The electric resistance heating element includes a sinuous-shaped element having a front side flank portion and a front side flank portion and at least one front side interior portion. The at least one front side interior portion is disposed intermediate the front side flank portion and the front side flank portion as viewed in a width direction perpendicular to the depth direction of the oven from the front of the oven to the rear of the oven and the front side flank portion and the front side flank portion each being located closer to the front of the oven than the at least one front side interior portion.
    Type: Application
    Filed: February 6, 2007
    Publication date: October 22, 2009
    Applicant: BSH Home Appliances Corporation
    Inventor: Kevin W. Sherbert
  • Patent number: 7605352
    Abstract: In a method for sorting PTC elements having different resistance-temperature characteristics, a predetermined voltage that allows a current to sufficiently decay is applied to each of PTC elements A and B, and the PTC elements are sorted on the basis of the difference between the times required for the currents passing through the PTC elements B to reach a predetermined value (e.g., 52 mA).
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: October 20, 2009
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshitaka Nagao, Hiroshi Ibaragi, Yutaka Ikeda, Kazuto Miyagawa, Yoshiaki Abe
  • Patent number: 7576306
    Abstract: An electric heating element with radiant tube comprising a radiation pipe (1) and an electric heating element (2, 3) contained in said pipe, wherein the heating element has legs that run to and fro in the pipe, and wherein the heating element is connected at one end of the pipe close to a furnace wall with electric power outlets through which electric current is fed to the element, wherein the element is supported in the pipe by ceramic discs (9) that are provided with through-penetrating holes through which the legs of the elements extend, and wherein two elements (2, 3) are disposed sequentially in said radiation pipe along its long axis.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: August 18, 2009
    Assignee: Sandvik Intellectual Property AB
    Inventor: Thomas Lewin
  • Patent number: 7573008
    Abstract: A PTC element comprising a PTC element body containing a polymer matrix and conductive particles, a pair of electrodes in contact with the PTC element body, and a protective layer composed of a cured epoxy resin composition containing an epoxy resin and a thiol-based curing agent, and covering the PTC element body so as to seal the PTC element body.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: August 11, 2009
    Assignee: TDK Corporation
    Inventors: Masaaki Yamashita, Yasuhide Yamashita, Tsuyoshi Sugiyama, Hisanao Tosaka
  • Patent number: 7569799
    Abstract: A compound body comprises a steel base element on which is deposited a heater layer. The base element is made of a precipitation hardening steel. In the form of a manifold or material feed tube in a hot duct system, said base element comprises a round or convex surface receiving the heater layer. This heater layer is a compound layer having several strata and/or strata elements which are thick film pastes or sheets and in such form are consecutively deposited, dried and baked-on. The pre-compression generated in this process in the heater layer is increased in controlled manner by precipitation hardening the base element.
    Type: Grant
    Filed: October 13, 2003
    Date of Patent: August 4, 2009
    Assignee: Gunther GmbH & Co., Metallverarbeitung
    Inventors: Herbert Gunther, Christel Kretschmar, Uwe Partsch, Peter Otschik
  • Patent number: 7566849
    Abstract: A series resistance heating cable comprises a heating element extending longitudinally along the cable. The element comprises a material having a positive temperature coefficient.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: July 28, 2009
    Assignee: Heatsafe Cable Systems Limited
    Inventor: Jason Daniel Harold O'Connor
  • Patent number: 7560670
    Abstract: A heating element (1) featuring at least two electrodes (5, 5?) for supplying the heating element (1) with current, containing a multitude of heating sections (11, 11?, 11?) that, coating at least one part of a base surface to be heated (4), are arranged between the electrodes (5, 5?) and are connected with them by electrical conduction. The heating element (1) has at least two bundles (9, 9?, 9?, 9?) of heating sections (11, 11?, 11?), with the bundles (9, 9?, 9?) being arranged at a distance from one another to avoid electrical contact between the bundles.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: July 14, 2009
    Assignee: W.E.T. Automotive Systems AG
    Inventors: Guenter Lorenzen, Michael Weiss
  • Patent number: 7554063
    Abstract: A heating apparatus including a housing defining a volume of air therein having an inlet and an outlet aperture. The heating apparatus also includes a heat generator having an elongate tubular metal sheath extending between an inner end and an outer end, a resistive wire within the sheath, and a substantially nonconducting material for electrically isolating the sheath relative to the resistive wire. The heat generator includes a terminal portion at the inner end and a heating portion extending between the terminal portion and the outer end of the sheath. The terminal portion is adapted for connection to a source of electrical power. Also, the heating portion of the heat generator is positioned in the housing to heat the volume of air. The heating apparatus also includes one or more insulators for electrically isolating the sheath relative to the housing.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: June 30, 2009
    Assignee: Dimplex North America Limited
    Inventors: Kristoffer Hess, Jeffery J. Kube
  • Patent number: 7541560
    Abstract: A drying apparatus includes a thermal roll for contacting and heating aluminum web in a continuous sheet form. The thermal roll includes a roll surface, having a static friction coefficient ? defined by contact with the web. The static friction coefficient ? satisfies a condition of: t+V?G wherein G = ? · ? A ? 1 = ? · t · sin ? ( ? / 2 ) where t is tension applied to the web; G is roll retaining force with which the roll surface frictionally retains the web; V is thermal expansion force generated by thermal expansion of the web retained on the roll surface; ?A1 is pressing force caused by the tension to the web and applied to the roll surface by the web; ? is a wrap angle at which the web contacts the roll surface. Thus, distortion of the web can be prevented even with a great difference in the temperature from the thermal roll.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: June 2, 2009
    Assignee: Fujifilm Corporation
    Inventors: Kenji Hayashi, Toru Onogawa
  • Publication number: 20090134146
    Abstract: In order, on the one hand, to achieve a high mechanical long-term stability of and, on the other hand, to have the possibility of guiding a stream of gas, in particular, a stream of gas consisting of a reactive process gas through a heating block for an apparatus for the thermal treatment of a substrate, in particular, a semiconductor substrate, wherein the apparatus has a space accommodating the substrate and the heating block on at least one side of the space accommodating the substrate, the substrate being treatable thermally by means of the heating block in a mechanically non-contact manner, it is suggested that the heating block be designed as a fiber composite member, that the fiber composite member be designed with passages for a stream of gas passing through it from one flat side to the other flat side.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 28, 2009
    Applicant: Deutsches Zentrum fuer Luft- und Raumfahrt e.V.
    Inventors: Hermann Hald, Klaus Funk, Bernhard Heidenreich
  • Publication number: 20090107987
    Abstract: A uniform heating assembly including at least one first insulative substrate, at least one first common terminal, at least one second common terminal and a multiplicity of conductive filaments at least partially embedded in the at one insulative substrate and extending at least mainly along both electrically parallel and geometrically parallel paths between the at least one first common terminal and the at least one second common terminal.
    Type: Application
    Filed: October 29, 2007
    Publication date: April 30, 2009
    Applicant: PCK TECHNOLOGY, INC.
    Inventor: Stella Stepanian
  • Publication number: 20090039073
    Abstract: Methods and devices for controlling temperature by precise heating without the need of using a temperature sensor are provided. The device comprises a resistive heating element (6), a controller (3), a heating circuit and a temperature sensing circuit. The temperature of the resistive heating element can be determined based on the resistance of the resistive heating element (6), which changes monotonically with its temperature. The resistive heating element (6) thus serves both as a heating element and as a temperature sensor, thereby obviating the need for a separate temperature sensor.
    Type: Application
    Filed: December 22, 2006
    Publication date: February 12, 2009
    Inventors: Min Guo, Keyue Shen, Cheng Zhou, Xiaosheng Guan, Jing Cheng
  • Patent number: 7485833
    Abstract: A rare earth element contained substrate for heat generating device contains the rare earth elements, compounds of the rare earth elements, or rare earth minerals so as to heighten its withstanding temperature and improve its heat dissipation. The substrate is also able to radiate a far infrared ray and yield negative ions for purifying the air.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: February 3, 2009
    Inventor: Cheng Ping Lin
  • Publication number: 20080296288
    Abstract: A filter (1) for diesel fuel comprising a tank (11), a filtering cartridge (2) which subdivides the inner volume of the tank (11) into two distinct chambers (50, 60), to which an input conduit (14) of the fuel to be filtered and an output conduit (15) of the filtered fuel are respectively connected, a heater (3), fed by means of electric current and adapted to melt the possible solid paraffins present in the fuel before they reach the filtering separator (21) of the cartridge (2), where said heater (3) has a porous surface (33, 34, 35) adapted to be crossed by the liquid component of the diesel fuel coming from the input conduit (14) and to hold the solid phase component, which forms at temperatures below the paraffination temperature, said porous surface (33, 34, 35) being adapted to be heated in order to liquefy said held solid component, so that it may cross said porous surface (33, 34, 35) in liquid form and reach the chamber (50) of the fuel to be filtered.
    Type: Application
    Filed: October 13, 2006
    Publication date: December 4, 2008
    Applicant: UFI FILTERS S.P.A.
    Inventor: Giorgio Girondi
  • Patent number: 7446286
    Abstract: A heater strip for use as a heating element in an electric heater is made up of a profiled strip made of a flat metallic material forming a resistor section and of mounting elements extending over one common longitudinal side and they are manufactured as one piece with the resistor section for mounting the heater strip to a support. The strip has a zigzag-shaped structure. The mounting elements are provided only on the flat leg sections of the zigzag-shaped heater strip.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: November 4, 2008
    Assignee: Electrovac AG
    Inventors: Josef Reithofer, Christian Auradnik
  • Publication number: 20080264930
    Abstract: An electric heating structure including a substrate and a heating element having a given specific resistance. The heating element includes an electrically conductive layer deposited on one of the faces of the substrate and supplied electrically, the heating element including a network of patterns functionally connected to the electrically conductive layer.
    Type: Application
    Filed: September 19, 2005
    Publication date: October 30, 2008
    Applicant: Saint-Gobain Glass France
    Inventors: Francoise Mennechez, Jean-Pierre Odile
  • Patent number: 7439472
    Abstract: A heating body is provided. The heating body includes a tube and a heating member disposed in the tube. When a radius from a center of the heating body to an outer circumference of the heating member is “r,” a radius of the tube is equal to or greater than 1.6r.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: October 21, 2008
    Assignee: LG Electronics Inc.
    Inventors: Young Jun Lee, Yang Kyeong Kim, Jong Sik Kim
  • Patent number: 7439475
    Abstract: The thermally conductive body for use by being placed between a heat generating body and a heat radiating body, in which the body is molded from a thermally conductive polymer composition. The thermally conductive polymer composition contains a polymer matrix and a thermally conductive filler. At least part of the thermally conductive filler is formed in the shape of fibers and oriented in a certain direction. In the body, ends of the thermally conductive filler formed in the shape of fibers are exposed on the outer surface intersecting the direction of the orientation. Protrusions extending along the outer surface are formed thereat. In case, the body is placed between the heat generating body and the heat radiating body so that the outer surface contacts at least one of the heat generating body and the heat radiating body.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 21, 2008
    Assignee: Polymatech Co., Ltd
    Inventor: Mitsuru Ohta
  • Patent number: 7439473
    Abstract: A method of supporting vertically hanging electrical resistance elements for heating furnaces or ovens in industrial operations. Each resistance element includes current-conducting legs that extend downward and upward a number of times, and the element includes along its length a number of ceramic discs that are provided with through-holes through which respective element legs extend. The upper part of the element merges with terminals that are connected to a source of electric current. The element is supported by at least one of the uppermost ceramic discs, wherein the uppermost ceramic disc supporting the element is placed in the insulation of the furnace roof above the underside of the roof. The legs of the element are short circuited at a location slightly or somewhat beneath the underside of the furnace roof with the aid of short circuiting plates.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: October 21, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventor: Thomas Lewin
  • Patent number: 7429720
    Abstract: The present invention relates to an electric radiating pipe capable of enhancing a heating efficiency in such a manner that a mixture of a porous operation medium and a volatile operation fluid is filled in a radiation pipe, and a porous operation medium is fast heated based on a viscosity difference, and a densely filled operation fluid is phase-changed to a high temperature vapor or a high temperature liquid based on a heated operation medium. In a radiating pipe that includes a certain shaped pipe body, and a heat wire passing through to the interior of the pipe body wherein both ends of the pipe body are sealed by a plugging cap, there is provided an electric radiating pipe that includes a porous non-flammable operation medium and volatile operation fluid being mixed and being filled into the interior of the pipe body.
    Type: Grant
    Filed: January 12, 2004
    Date of Patent: September 30, 2008
    Inventor: Hyung-Gon Kim
  • Publication number: 20080230536
    Abstract: An electromagnet heating cable includes a center core, an inner layer body formed around the center core, an intermediate layer body formed around the inner layer body, an outer layer body formed around the intermediate layer body, an inner layer coil having a magnetic core disposed between the center core and inner layer body, an intermediate layer coil disposed between the inner layer body and the intermediate layer body, and an outer layer coil disposed between the intermediate layer body and outer layer body, wherein when a temperature of the heating cable exceeds a threshold, the intermediate layer body melts to electrically connect the intermediate layer coil to the outer layer coil.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventor: Myoung Jun Lee
  • Publication number: 20080223841
    Abstract: A heating element includes a plurality of folded surfaces which can be resistively heating using electrical current. The heating element can advantageously function both as a heating source and a heat transfer device, as the need for separate fins or other heat dissipation members is eliminated. In some embodiments, the heating element can be included in a fluid heating system. The fluid heating system can include a fluid transfer device configured to deliver a volume or ambient air or other fluid through the heating element. As air moves past the heated folded surface of the heating element, it is heated. Heated air can then be discharged to one or more desired locations.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Inventor: John Lofy
  • Patent number: 7423242
    Abstract: Oven for non-metal melting, in particular silicon melting, with a housing enclosing an interior, at least one mould arranged in the interior for receiving a non-metal melt, at least one electrical heating device enclosing, at least partially, the at least one mould for influencing the temperature of the non-metal melt, and a power supply device connected in an electrically conductive manner to the at least one heating device for providing the heating device with a time-variable current I(t), wherein the current I(t) has a frequency of 0.1 Hz to 1000 Hz and the current I(t) is of a magnitude sufficient for setting a predetermined temperature of the non-metal melt, the currents in the plurality, where necessary, of heaters having a defined phase position in respect of one another.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: September 9, 2008
    Assignee: Deutsche Solar AG
    Inventors: Marc Dietrich, Bernhard Freudenberg, Armin Müller, Jens Seidel, Josef Stenzenberger
  • Patent number: 7423239
    Abstract: A laminated panel element that includes at least two rigid panes, for example glass panes, bonded to each other on their surfaces, which are each provided, over their whole surface, with an electrically conductive coating that can be heated by application of a voltage via electrodes. One of the two rigid panes is provided with a cut-out allowing the passage of external electrical connections that are in electrical contact with the two coatings.
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: September 9, 2008
    Assignee: Saint-Gobain Glass France
    Inventor: Detlef Mann
  • Patent number: 7388176
    Abstract: A heating device includes a case having a plurality of openings and a plurality of slits are defined in bars of the case so that a plurality of heating boards are engaged with the slits of the case at an equal distance. A power control device is connected to the case and includes a power line having a plurality of male connectors. Each heating board includes a heating layer sandwiched between two isolation plates. Two wires are connected to the heating layer and each wire has female connectors, which are connected with the male connectors of the power line. The heating layers of the heating boards dispense heat evenly from the openings of the case.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: June 17, 2008
    Inventor: Ching-Song Chen
  • Publication number: 20080138644
    Abstract: Extruded metal honeycombs are produced by the direct extrusion of a softened bulk metal feedstock through a honey-comb extrusion die comprising a feedhole array for delivering softened metal through a supporting die baseplate to a honeycomb die discharge section, the discharge section comprising an array of intersecting discharge slots that form the walls of an extruded metal honeycomb structure. This process can be optimized by employing a proper pressure gradient for a particular extrudate flow rate, extrudate composition, and wall-drag condition arising from the particular composition of the feedhole wall, as illustrated graphically in FIG. 4.
    Type: Application
    Filed: July 29, 2004
    Publication date: June 12, 2008
    Inventors: John Steele Abbott III, Thorsten Rolf Boger, Lin He, Samir Khanna, Kenneth Richard Miller, Charles Mitchel Sorensen Jr.
  • Publication number: 20080135540
    Abstract: A cooking set includes a heating unit, and a container. The heating unit has a top platform and a heat source provided thereon for generating heat. The container includes a container body and a heat enhancement arrangement. The container body includes a bottom wall and a surrounding wall upwardly extended from the bottom wall to form a heating cavity within the bottom wall and the surrounding wall. The heat enhancement arrangement contains a heat distributing cavity indently formed on the bottom wall of the container body to align with the heat source of the heating unit when the container body is disposed on the top platform of the heating unit, such that when the heating unit is controllably operated to generate the heat via the heat source, the heat is evenly accumulated within the heat distributing cavity to evenly distribute from the bottom wall to the surrounding wall.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 12, 2008
    Inventors: Cindy Wu, Lee K. Wu
  • Patent number: 7381931
    Abstract: A drying apparatus includes a thermal roll for contacting and heating aluminum web in a continuous sheet form. The thermal roll includes a roll surface, having a static friction coefficient ? defined by contact with the web.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: June 3, 2008
    Assignee: Fujifilm Corporation
    Inventors: Kenji Hayashi, Toru Onogawa
  • Patent number: 7378621
    Abstract: The present invention relates to an electrical resistance element of the molybdenum silicide type that includes two terminals (1, 2) for the supply of electric current and at least one leg (3) which extends between the terminals and which includes a glow zone. The invention is characterized in that the glow zone has different diameters along different sections (6-11, 14-17) of the leg (3; 4, 5).
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: May 27, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventor: Lars Göran Johansson
  • Patent number: 7372054
    Abstract: Radiation module for thermal or UV irradiation processing procedures with a large number of radiation sources essentially adjacent and parallel to one another for electromagnetic radiation whose main effective range is in the UV spectrum, visible spectrum, and/or near infrared (NIR) part of the spectrum, particularly at wavelengths between 250 nm and 1.5 ?m, whereby each of the radiation sources possesses an elongated central section, two bent ends, and two bent sections connecting the ends with the central section, and a reflector and cooler body bearing the radiation sources, whereby the reflector and cooler body possesses two end reflector sections assigned to the bent sections of the radiation source from the straight elongated main section to the ends formed as one piece.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: May 13, 2008
    Assignee: Advanced Photonics Technologies AG
    Inventors: Gunther Gesell, Torsten Berge, Rolf Wirth
  • Patent number: 7355147
    Abstract: A floating ice removal device with a disk shaped upper cover, a disk shaped lower cover and a heat emitting cup. An electric circuit board is mounted on an inner bottom of the lower cover, and a helical heat emitting wire is mounted on the inner top surface of the upper cover in a contact mode, and the cup having a heat emitting source is mounted on the outer bottom surface of the lower cover. An electric power line is extended in from the bottom of the heat emitting cup to connect the circuit board to supply electric power, so that the helical heat emitting wire keeps the surface temperature of the upper cover above 5 degrees Celsius, so that the surface of the entire ice removal will not be covered by snow or ice, while the heat emitting cup can emit heat under the water for removing ice.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: April 8, 2008
    Assignee: Eiko Electric Products Corp.
    Inventor: Yu-Chin Wang
  • Patent number: 7348519
    Abstract: A multi-zone griddle with an upper substantially continuous layer of metal adapted for cooking a food product thereon. The upper substantially continuous layer of metal is positioned adjacent to a first lower layer of metal and is displaced a predetermined distance relative to the upper substantially continuous layer of metal to form a space therebetween. A second lower layer of metal is displaced a predetermined distance relative to the upper substantially continuous layer of metal to form a space therebetween. At least one serpentine passageway is formed in the space between the first lower layer of metal and the upper substantially continuous layer of metal. The at least one serpentine passageway may be connected to a source of heated fluid for providing heat to a portion of the upper substantially continuous layer of metal that corresponds to the position adjacent to the at least one serpentine passageway.
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: March 25, 2008
    Assignee: Thermodyne Foodservice Products, Inc.
    Inventors: William Federspiel, Timothy Tippmann