With Resistive-element Attaching, Securing Or Electrical Insulation Means Patents (Class 219/542)
  • Patent number: 6864464
    Abstract: An electric heater (2) is arranged for location in an oven (4) intermediate a cavity (6) of the oven and a flue arrangement (8) for venting the cavity (6). The heater (2) comprises a dish-like support (14) containing at least one electric heating element (22) and having a first face (24) open to the cavity (6) and a second face (16; 18) having an aperture (26) adapted to interface with the flue arrangement (8). Catalyst means (28) is provided incorporated in the heater (2).
    Type: Grant
    Filed: June 13, 2003
    Date of Patent: March 8, 2005
    Assignee: Ceramaspeed Limited
    Inventor: Kevin Ronald McWilliams
  • Patent number: 6807220
    Abstract: A heating assembly for use in an electric furnace includes a helical heating element encircled by thermal insulation, and rows of spacers for keeping turns of the heating element spaced apart by predetermined distances. Each spacer includes circumferential side portions facing generally in a circumferential direction of the heating element and converging toward a center region of the spacer to form a radial undercut against which the insulation abuts. The spacers of each row have through holes extending parallel to a longitudinal axis of the heating element. A guide rod extends through the through holes of each row of spacers.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 19, 2004
    Assignee: MRL Industries
    Inventor: Kevin B. Peck
  • Publication number: 20040182853
    Abstract: A mica board open coil resistance heater assembly includes a mica board subassembly of at least one pair of mica boards, a resistance wire wound around the boards, an electrical connection clip secured to each mica board, wherein each end of the resistance wire is connected to a respective clip. A terminal plate subassembly includes a thermostat, a ceramic two-hole terminal block, and bus wires, the bus wires adapted to be attached to a portion of the electrical connection clip to connect the resistance wire to power. The ceramic two-hole terminal is able to receive push on terminals from power conductors.
    Type: Application
    Filed: March 21, 2003
    Publication date: September 23, 2004
    Inventors: H. Keith Howard, Robert Kirby
  • Publication number: 20040144765
    Abstract: In a paver comprising a paving screed and at least one working component which is heated by means of at least one electric heating element H, e.g. a smoothing plate, the heating element H being secured in heat tampering condition at a heating area of the working component, the heating element containing at least one heating coil, the heating element is a plane heating element, the heating coil is a heating conductor which is wound in spirals around plane carrier material, and the peripheral form of the carrier material and/or the winding density or the winding course of the heating conductor is adapted to a predetermined heating picture in the heating area, respectively.
    Type: Application
    Filed: December 12, 2003
    Publication date: July 29, 2004
    Applicant: Joseph Vogele AG
    Inventor: Michael Heindtel
  • Patent number: 6759805
    Abstract: A circular filament lamp comprises a filament supported within an envelope which comprises a tube formed as the major part of a circle. The ends of the tube terminate in pinch seals through which extend current carrying assemblies connected to the filament. The pinch seals overlap one another circumferentially of the lamp, and are offset from one another on either side of a plane containing the axis of the filament.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: July 6, 2004
    Assignee: General Electric Company
    Inventors: Francis Gerard de Cort, Derek Peter Hurst
  • Patent number: 6740857
    Abstract: A cartridge heater and method of manufacturing same. In one embodiment, the cartridge includes a sheath having a first end and a second end. The first end of the sheath forms a seat. An elastomeric bushing is swaged against the seat such that it forms a mechanically bonded seal substantially preventing moisture egress into the cartridge heater. A heating element is also disposed in the sheath and is connected to leads protruding from the bushing. The heater includes crushable insulation material disposed within the sheath.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: May 25, 2004
    Assignee: Chromalox, Inc.
    Inventors: Sidney L. Furlong, Amy M. Barker, Sam W. Henry
  • Patent number: 6740853
    Abstract: A substrate holder for holding a substrate (e.g., a wafer or an LCD panel) during plasma processing. The substrate holder is a stack of processing elements which each perform at least one function. The elements include an electrostatic chuck (102), an He gas distribution system (122), multi-zone heating plates (132), and multi-zone cooling system (152). Each element is designed to match the characteristic of the processing system, e.g., by applying heat based on a heat loss characteristic of the substrate during normal processing. The integrated design allows for precise control of the operating conditions, including, but not limited to, fast heating and fast cooling of a substrate.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: May 25, 2004
    Assignee: Tokyo Electron Limited
    Inventors: Wayne L. Johnson, Eric J. Strang
  • Patent number: 6737615
    Abstract: A heat conductor coil for heating a flowing gaseous medium is configured to be attached to a support configuration and has a heat conductor wound in windings following an ascending line of a coil to form the heat conductor coil, wherein the ascending line of the coil defines a circumferential surface of the heat conductor coil. The heat conductor is deflected alternatingly in opposite directions within the circumferential surface of the coil out of the ascending line of the coil. The heat conductor coil is attached to a support plate by securing elements having a securing part for holding a winding of the heat conductor coil and a foot part for attaching the securing element to the support plate. The securing part is a tubular section with a substantially closed mantle surface and receives a winding of the heat conductor coil.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: May 18, 2004
    Assignee: MicroHellix Systems GmbH
    Inventors: Karl-Heinz Lange, Ingo Schehr
  • Patent number: 6717113
    Abstract: This invention is a thermal management method for efficient, rapid, controllable and uniform thermal management over a wide temperature range. The method integrates a thermal source, thermal sink and a thermal diffuser. According to the invention, a thermal diffuser is positioned stationary relative to the wafer surface and coupled to a thermal source and a thermal sink, which are also stationary relative to the wafer surface. The thermal sink comprises a heat-carrying media with a controllable temperature. The wafer is heated from a first processing temperature to a second processing temperature during a heating time interval and then cooled to the first processing temperature from the second processing temperature during a cooling time interval. During heating and cooling, the wafer is constantly held in a fixed position. Zonal control of the thermal source and non-uniform flow of the thermal sink enable sensitive mitigation of thermal non-uniformity on a heating surface.
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 6, 2004
    Assignee: ASML Holding N.V.
    Inventor: Dikran S. Babikian
  • Patent number: 6713728
    Abstract: A drum heater consisting of a plurality of vanes made preferably from mica material and having multiple separate heater wire channels controlled from an electrical cable is provided for heating the interior of a printer drum or fuser. The drum heater has element wires, which can be operated in two different modes, and which are wound around eight mica vanes. The mica vanes are held together on both ends with mica end caps for assembly, electrical isolation and thermal isolation. The mica vanes additionally define protruding tabs for attachment of wire restraining and protecting mica panels.
    Type: Grant
    Filed: February 27, 2003
    Date of Patent: March 30, 2004
    Assignee: Xerox Corporation
    Inventors: Patrick B. Justice, Larry E. Hindman, Trevor J. Snyder, Michael P. O'Dierno, Jeffrey R. Kohne
  • Patent number: 6684659
    Abstract: In a refrigerator using a flammable coolant, in order to decrease danger of ignition when defrosting is conducted under an environment of leakage of the flammable coolant, the refrigerator comprises a cooling cycle evaporator and a defrosting devicve for defrosting the evaporator, wherein a temperature of the defrosting device is lower than an ignition temperature of the flammable coolant.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: February 3, 2004
    Assignee: Matsushita Refrigeration Company
    Inventors: Masaaki Tanaka, Takeshi Shimizu, Koichi Nishimura
  • Publication number: 20030160043
    Abstract: A radiator element for an air heating device, and a corresponding heating device and manufacturing method are provided which reveal improved assembly properties. The radiator element comprises at least one lamella element and one radiator sheet, wherein the radiator sheet comprises on at least two edges projections for attaching the lamella element onto the radiator sheet. The projections may be folded for attaching the lamella element. For facilitating the bending process, a notch along the edge is provided.
    Type: Application
    Filed: January 9, 2003
    Publication date: August 28, 2003
    Applicant: David & Baader GmbH
    Inventor: David Clemens
  • Patent number: 6580061
    Abstract: A heater for fluids, the heater comprising a conduit having a wall and a surface, the conduit being configured to convey a fluid. In one arrangement, the conduit surface is roughened to mechanically secure a coating thereto. A conductor, configured to be electrically resistive and to extend over at least a portion of a roughened surface, and to adhere thereto throughout variations in operational temperatures thereof. The heater provides a clean, particle-free, non-reactive, non-trapping, ultra-pure, thermally tolerant, sealed system. The system maintains process fluids clean, even upon system failure, at contaminant levels below parts per billion, or even parts per trillion. In one arrangement, the heater comprises a quartz conduit with an electroless nickel plating of an engineered thickness on an external surface forming a resistive heater. The resistive heater conducts thermal energy through the wall of the conduit.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: June 17, 2003
    Assignee: Trebor International Inc
    Inventor: Steven A. Black
  • Publication number: 20030102301
    Abstract: A heater assembly includes a mounting structure, a securement structure, an insulator support structure, a conducting structure having a first portion and a second portion, a terminal structure, and a thermostat structure. The securement structure cooperates with the insulator support structure and the mounting structure to releasably and fixedly secure the insulator support structure to the mounting structure. The terminal structure is coupled to the first portion of the conducting structure, and is used to deliver power to the conducting structure. The thermostat structure is coupled to the second portion of the conducting structure. The insulator support structure is configured to cooperate with both the terminal structure and the thermostat structure to fixedly support the terminal structure or the thermostat structure in position.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 5, 2003
    Inventors: Jimmy L. Sherrill, Ike D. Walker
  • Patent number: 6515262
    Abstract: A multifunctional cooking system including a deep well cooker that includes a bottom heating element and a wrap-around heating element which are disposed about the deep well member for heating the side walls thereof is disclosed. The heating elements are fabricated in alternative embodiments to provide one-sided or double-sided configurations for particular applications. Both the bottom heating element and the wrap-around heating element are electrically interconnected by a temperature controlling device for heat regulation and a multi-function controller for selectively energizing the heating elements individually or in combination for various cooking modes.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: February 4, 2003
    Inventor: George T. C. Li
  • Patent number: 6509550
    Abstract: A roasting oven having a large capacity heating well including a wrap-around heating element for heating the side walls thereof and a top heating element for browning is disclosed. A function control panel featuring a touch-film interface and digital display of cooking modes is provided for the user's convenience. In an alternative embodiment standard electromechanical switches and rheostatic temperature controls provide the functions of the present oven. The heating elements are also fabricated in alternative embodiments to provide single-sided or double-sided configurations for particular applications. The power supply circuit board is isolated from the heating elements in a ventilated compartment on an undersurface of the roasting oven to prevent damage thereto from exposure to the heat source. The present roasting oven is provided with an optional serving set conforming to the shape of the heating well to maintain food in a warmed condition.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: January 21, 2003
    Inventor: George T. C. Li
  • Patent number: 6479797
    Abstract: A snow melting apparatus 1 according to the present invention comprises a plurality of heating wires 10, a pair of fixing members 20, 20 and rod-shaped auxiliary fixing members 30. The plurality of heating wires 10 are arranged substantially in parallel with each other at predetermined intervals in a director perpendicular to its axial direction. The fixing members fix and hold the plurality heating wires at end portions thereof. The rod-shaped auxiliary fixing member holds the plurality of heating wires at intermediate positions thereof. Accordingly, it is possible to provide a snow melting apparatus which holds a certain flexing capability, which causes no damage to the joining force between a base layer and a surface layer of a driveway, and which does not fail completely even if the apparatus partially breaks at a single position therealong.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: November 12, 2002
    Assignee: Tigers Polymer Corporation
    Inventors: Kiyoshi Yanagimoto, Motohiro Nishii
  • Patent number: 6475606
    Abstract: The present invention has for its object to inhibit decrease in Young's modulus at high temperature without compromise in various other characteristics such as heat conductivity. The present invention is directed to a ceramic board for semiconductor manufacture and inspection comprising a conductor layer internally or on the surface thereof which is composed of nitride ceramics containing oxygen and 0.1 to 50 ppm (wt.) of Si.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: November 5, 2002
    Assignee: Ibiden Co., Ltd.
    Inventor: Takeo Niwa
  • Patent number: 6470143
    Abstract: A heating door comprises a frame. A first panel is mounted to the frame. A second panel is mounted to the frame. A sheet is disposed between the first and second panels. The sheet defines an inner section between the first panel and the sheet and an outer section between the second panel and the sheet. At least one heating mechanism is arranged in at least one of the first and the second section.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: October 22, 2002
    Inventor: Bernard Peyronny
  • Patent number: 6459074
    Abstract: An encapsulation for the connection end or the termination end of a strip heater cable includes a moulded part, in which the strip heater cable has a core, including a plurality of electric conductors, and over the core, an insulating outer sheath made from a thermoplastic fluoropolymer material. The moulded part includes the same fluoropolymer material as the insulating outer sheath. The moulded part holds-an end section of the core of the strip heater cable and is welded to the insulating outer sheath, such that the connection end or the termination end is sealed in a hermetically tight fashion.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: October 1, 2002
    Assignee: Bacab SA
    Inventors: Thomas Michelbach, Mario Colpa, Werner Bolleter
  • Publication number: 20020125243
    Abstract: A heat conductor coil for heating a flowing gaseous medium is configured to be attached to a support configuration and has a heat conductor wound in windings following an ascending line of a coil to form the heat conductor coil, wherein the ascending line of the coil defines a circumferential surface of the heat conductor coil. The heat conductor is deflected alternatingly in opposite directions within the circumferential surface of the coil out of the ascending line of the coil. The heat conductor coil is attached to a support plate by securing elements having a securing part for holding a winding of the heat conductor coil and a foot part for attaching the securing element to the support plate. The securing part is a tubular section with a substantially closed mantle surface and receives a winding of the heat conductor coil.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 12, 2002
    Applicant: MicroHellix Systems GmbH
    Inventors: Karl-Heinz Lange, Ingo Schehr
  • Patent number: 6410886
    Abstract: An electrical resistive heating system having a Nitinol heater element in the form of wire, rod strip or tube, is flexible, ductile, tough aid chemically non-reactive. The element has connectors at each end for leads from a controller that controls the flow of current through the heater element from a source of electrical power. The Nitinol heater element is treated to have an electrically insulating surface that is also hard and chemically non-reactive, so the heater element can be put in intimate contact with the materials or substrate to be heated without shorting or electrical shock to people or equipment. The controller uses temperature data feedback from a separate temperature sensor such as a thermocouple, or uses the resistance of heater element itself as a temperature sensor, since the resistance of the Nitinol changes with temperature in a predictable way.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: June 25, 2002
    Assignee: Nitinol Technologies, Inc.
    Inventor: Gerald J. Julien
  • Patent number: 6365882
    Abstract: A system for transforming electrical energy into thermal energy, already diffused has a flat support, and a substantially continuous heat-emitting surface formed by one or more electrically conducting continuous strips, each having a constant thickness, laid flat in parallel lengths and spaced for electrical insulation, the strips being arranged on the flat support and mechanically connected to it.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: April 2, 2002
    Assignee: Cadif SRL
    Inventor: Aldo Stabile
  • Patent number: 6353707
    Abstract: An electric heating device includes a flexible resistor ribbon, a plurality of sections of electroconductive coating attached to the resistor ribbon at preset intervals, and connector contacts coupled to the resistor ribbon for enabling connection of a power source to the resistor ribbon. The resistor ribbon has a high specific impedance. The flexible resistor ribbon is attached to a rigid or flexible flat base panel for incorporation into a building as a floor, wall or ceiling panel. Layers of electric insulation are attached to the base so as to sandwich the flexible resistor ribbon. Where the resistor ribbon is bent back on itself, for example, to form a snaking configuration, a strip of two-sided adhesive tape is attached to the layers of electric insulation and to the ribbon at multiple spaced points.
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: March 5, 2002
    Assignee: Ceramitech, Inc.
    Inventors: Irina Loktev, Igor Papirov
  • Publication number: 20020003137
    Abstract: There is provided a bonding heater used to package a semiconductor chip on a multilayer substrate, which has adaptability to various chip sizes, with an excellent maintenance characteristics, with undesirable displacement of the chip at the time of mounting a semiconductor chip being made as small as possible and also with a temperature rise time to a desired temperature being shortened. This bonding heater is constituted by a ceramic tool for pressing an object to be heated, a ceramic heater for heating the tool, a heat insulating member for transferring heat generated by the ceramic heater mainly to the tool side and a holder for integrating these members and connecting these members to another member, and the tool, ceramic heater, heat insulating member and holder are detachably bonded.
    Type: Application
    Filed: May 22, 2001
    Publication date: January 10, 2002
    Applicant: KYOCERA CORPORATION
    Inventors: Kiyoshi Yokoyama, Takafumi Turumaru, Hiroyuki Arima, Hideaki Shimozuru
  • Publication number: 20010054611
    Abstract: A heater cable is wired in combination with a lead cable, the two cables are formed such a pattern that the heater cable and the lead cable are spaced by a predetermined distance L from each other and are capable to be supplied with opposite flows of current. The heater cable has a core thread, a heating element wire wound in a spiral on the outer surface of the core thread, a fusing layer provided over the heating element wire, a signal wire wound in a spiral on the outer surface of the fusing layer and a protective coating provided over the signal wire. The lead cable has a conductive wire covered at its outer surface with an insulating coating.
    Type: Application
    Filed: July 3, 2001
    Publication date: December 27, 2001
    Applicant: TOTOKU ELECTRIC CO., LTD.
    Inventors: Shouhei Miyahara, Hidekazu Aoki, Kazuhiko Koiwai, Atsushi Nakajima, Toshikazu Nishiwaki, Yutaka Mizumura
  • Publication number: 20010017295
    Abstract: An oven particularly suitable for dental materials is provided with a firing plate on which a calibration apparatus can be removably located. The calibration apparatus includes a meltable element whose melting is detectable by a detecting device. The calibration apparatus is additionally provided with a control device. The firing plate includes a device for receiving therein the calibration apparatus including a non-electrically conducting support for supporting two electrically conducting contact posts of the calibration apparatus.
    Type: Application
    Filed: January 3, 2001
    Publication date: August 30, 2001
    Applicant: Ivoclar AG
    Inventors: Gottfried Rohner, Johannes Lorunser, Horst Ulbricht
  • Patent number: 6265700
    Abstract: This invention has as its object to provide a ceramic heater provided at low cost without being compromised in its performance, with the result that a ceramic heater equivalent to the conventional product in performance characteristics can be manufactured at reduced cost. A ceramic heater comprising a core, an insulation sheet covering the core and a resistance heating element of high-melting metal embedded between the core and insulation sheet, a high-temperature part of the resistance heating element, the operating temperature of which reaches 300° C. or higher, comprises a high-melting metal supplemented with Re or Mo.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: July 24, 2001
    Assignee: Ibiden Co., Ltd.
    Inventors: Fumishige Miyata, Tatsuya Koyama, Seiko Okuda
  • Patent number: 6236027
    Abstract: This invention provides a ceramic heater comprising a core, an insulation layer and a resistance heating element of high-melting metal as embedded between the core and insulation layer, wherein the operating temperature is not less than 300° C., the insulation layer comprising a sintered compact composed of 88 to 95 weight % of Al2O3 supplemented with, as sintering aids, 3 to 10 weight % of SiO2, 0.4 to 1.0 weight % of MgO and 1.0 to 2.5 weight % of CaO and having a density of not less than 3.60 and a thickness of 100 to 300 &mgr;m.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: May 22, 2001
    Assignee: Ibiden Co., Ltd.
    Inventors: Fumishige Miyata, Masahiro Tsuji
  • Patent number: 6207935
    Abstract: A radiant heating body for a cooking hob has a heating conductor comprising a metal foil and an insulating bottom (12). To make the heating conductor easy to fit and to provide advantageous heat radiation properties the flat geometrical heating conductor pattern is separated out of the metal foil. The pattern forms heating limbs (1) whose large surface is towards the cooking hob and which are held at least at an outer annular rim (13) of the insulating bottom (12).
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: March 27, 2001
    Assignee: Diehl AKO Stiftung & Co. KG
    Inventors: Gunter Dittmar, Josef Hecht, Gunther Wildner
  • Patent number: 6184507
    Abstract: The invention is related to a package for packing a cylindrical carbon heater, used for manufacturing a mono crystal body and a method of forming the same, in which the cylindrical carbon heater is held sandwiched at the opposite ends between a base member and a plurality of retainer members, and compressive forces are applied independently to different parts of the carbon heater on the base member via the respective retainer members.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: February 6, 2001
    Assignee: Nippon Carbon Co., Ltd.
    Inventors: Tadayoshi Kouno, Saburou Tanaka, Akira Masaoka
  • Patent number: 6169275
    Abstract: A ceramic heater with a specified ratio of electric resistance for the heat generating portion and the lead portion of a heat generating resistor is provided. The ceramic heater has a ceramic substrate comprising alumina as a main ingredient and a heat generating resistor composed only of tungsten, or a heat generating resistor comprising at least one of 3 to 30% by weight of alumina and 10 to 40% by weight of rhenium, and at least one of tungsten and molybdenum. Particularly, the ratio of the electric resistance can be controlled and the adhesion of ceramic substrates for sandwiching the heat generating resistor can be improved, for example, by means of disposing slits to the lead portion and/or changing ingredients constituting the lead portion. The ceramic heater is capable of reaching a predetermined temperature in a short time, has high adhesion between the heat generating resistor and ceramic substrates and excellent durability and can be used in an oxygen sensor.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: January 2, 2001
    Assignee: NGK Spark Plug Co, Ltd.
    Inventors: Yoshiro Noda, Toshihiko Aoyama
  • Patent number: 6150643
    Abstract: The present invention is a heat insulating material being a single unit having superior insulating performance as well as sufficient mechanical strength itself to constitute furnace walls, an electric heating unit having the heat insulating material and a method of manufacture of the heat insulating material and the electrical heating unit. The heat insulating material of the present invention includes an outer layer having mainly refractory inorganic fibers and a core layer supported within the outer layer. The outer layer has greater mechanical strength than the core layer. The core layer has a composition having a better insulating performance than the outer layer and extends in a plane substantially perpendicular to the thickness of the heat insulating material. The electrical heating unit of the present invention has a heating element embedded in the heat insulating material.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: November 21, 2000
    Assignee: Koyo Thermo Systems Co., Ltd.
    Inventors: Koichi Kitamura, Masaaki Ueda, Hiroyuki Hanaya
  • Patent number: 6142207
    Abstract: A hot melt glue applicator has an elongate chamber having a first end shaped as a hot melt glue stick entry and a second end equipped with a molten glue dispensing nozzle. The applicator includes a device for progressively moving the glue stick into the chamber, and a device for electrically heating that part of the glue stick which is in the chamber. The device for electrically heating includes at least one heating element including an electrically resistive material track which can be connected to an electrical power supply and which is formed on an electrically insulative surface of a substrate, so as to be in intimate thermal contact with a mass of glue contained in the chamber. Because of the intimate thermal contact established between the resistive track of the heating element and the mass of glue, the thermal energy emitted by the track because of the Joule effect is virtually all absorbed by the mass of glue, which considerably improves the thermal efficiency of the applicator.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: November 7, 2000
    Assignee: Sofragraf Industries
    Inventor: Francis Richardot
  • Patent number: 6134386
    Abstract: A panel heater for animals of generally rectangular slab-like shape. The panel heater has sloping sides to accommodate animals and comprises basically a shell into which a fire retardant material is poured around electrical resistance wire. Anchorage is provided to ensure that there is adequate keying between the fire retardant material and the shell to prevent degradation during use. Various support devices are provided for the heating element which is formed from an electrical resistance wire. A two-stage pouring of the fire retardant material is used to prevent the possibility of accidents by keeping the electrical resistance wire away from the outer surface.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: October 17, 2000
    Inventor: James Martin O'Donnell
  • Patent number: 6118109
    Abstract: A heating device includes a substrate made of a heat-resistant insulating material, a heating resistor formed on the substrate, and a protective glass coating formed on the substrate to cover the heating resistor. The protective glass coating is formed of a glass material containing, as an additive, 3.about.40 wt % of alumina powder which has an average grain size of 0.5.about.2.0 .mu.m.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: September 12, 2000
    Assignee: Rohm Co., Ltd.
    Inventor: Teruhisa Sako
  • Patent number: 6114667
    Abstract: Device for attaching together parts of a household electric appliance, one of which parts is a metal assembling part in the form of a sheet or plate having opposed first and second major faces, the device being composed of an assembling and retaining element having a base and a projecting portion which projects beyond the first major face of the assembling part, the assembling and retaining element being integral with, and formed from, said assembling part, wherein the base of the assembling and retaining element is constituted by a portion of the assembling part and extends to a plane containing the second major face of the assembling part, the projecting portion is formed by displacement of material of the assembling part to effect a local reduction of the thickness of the assembling part around the assembling and retaining element, and the projecting portion has a volume corresponding substantially to the volume of the material which is displaced to form the projecting portion.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: September 5, 2000
    Assignee: SEB S.A.
    Inventors: Jean-Marie Balandier, Bernard Remy, Daniel Joannes, Michel Klinger
  • Patent number: 6087639
    Abstract: A retainer bracket for an electric heating assembly is provided with a pair of parallel and opposing side beams having longitudinal axes and at least one planar transverse support formed integral with the pair of side beams and extending between the pair of side beams. The transverse support preferably has a plurality of openings with longitudinal axes and the transverse support is disposed so that the axes of the openings are parallel to the longitudinal axes of the side beams. The plurality of openings are thereby each adapted to receive and retain an insulator without a separate fastener. A method of making the heating coil retainer bracket from a single web of material is also contemplated.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: July 11, 2000
    Assignee: Hart & Cooley, Inc.
    Inventors: Roger P. Engelke, Leon Lietch
  • Patent number: 6075231
    Abstract: A formed integral heated molding torpedo device for maintaining at a controlled elevated temperature material passing over an exposed surface of the device which has an integral casing containing a resistance wire wound core embedded in heat transfer electrical insulation material, with leads connecting the wire wound core to a source of power exiting from one end of the torpedo device, wherein the torpedo device is bent so that its heat transfer surface is arranged angularly to its end from which the leads exit. The invention also includes steps for making such a heated molding torpedo device.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: June 13, 2000
    Inventor: Walter Crandell
  • Patent number: 6073340
    Abstract: Several heater patterns are printed on a ceramic green sheet for substrates, and the ceramic green sheet is laminated with a ceramic green sheet for cover plates, thereby forming a lamination body. Then, the lamination body is cut so that it is divided into several intermediate bodies, each of which holds a corresponding one of the heater patterns therein and has a side surface on which a terminal portion of the heater pattern is exposed. Then, the intermediate body is baked. As a result, a ceramic heater composed of a heater substrate holding the heater pattern and a cover plate disposed on the heater substrate to cover the heater pattern can be provided without any micro-cracks therein.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: June 13, 2000
    Assignee: Denso Corporation
    Inventors: Makoto Shirai, Akira Fujii, Masayuki Kobayashi
  • Patent number: 6060699
    Abstract: An electrode for connecting an external electric wire to a body heated to a high temperature includes a high temperature side electrode made of a conductor connected to the heated body, and a low temperature side electrode connected at a first end thereof to the high temperature side electrode and at a second end thereof to the external electric wire. The low temperature side electrode is formed of a conductor covered by an insulating material with the conductor of the low temperature side electrode being made of a material having a conduction resistance smaller than that of the conductor of the high temperature side electrode. Thus, as the conductor of the low temperature side electrode has a smaller conduction resistance than the conductor of the high temperature side electrode, an increase in a resistance value is reduced even when the conductor of the low temperature side electrode is extended to lower the temperature at a connection to an external electric wire.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: May 9, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuhiro Sakurai, Hiroshi Hosokawa
  • Patent number: 6054690
    Abstract: A heating element includes at least one substrate, at least one electrical resistance layer, and a binder configured to bind the electrical resistance layer to the substrate, wherein the binder has a melting temperature greater than an operating temperature of the heating element and includes a perfluorinated polymer.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: April 25, 2000
    Assignee: Norton Pampus GmbH
    Inventors: Dominique Petit, Peter Wolki
  • Patent number: 6051817
    Abstract: There is proposed a heating conductor for a radiant heating body of a cooking hob, which is substantially formed from heating limbs (2) which are cut out of a metal foil or sheet in a geometrical pattern and inserted between the cooking hob and an insulating bottom (20). The heating limbs (2) have holding tongues (1) for fixing the heating limbs in holding portions (5) of the radiant heating body or in portions of the insulating bottom (20). The holding tongues (1) have substantially integrated fixing devices. Also described are certain advantageous arrangements and configurations of the heating conductors.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: April 18, 2000
    Assignee: AKO-Werke GmbH & Co. KG
    Inventors: Norbert Morsch, Jorg Meyer
  • Patent number: 6043467
    Abstract: A thick film resistive heating element having a thick film resistive track applied to the surface of an electrically insulative substrate. An encapsulating insulating layer is applied over the track to protect it while an area of the element is left uncovered by the encapsulating layer so as to define a window. A portion of a temperature sensitive control device is then placed in direct contact with the track and/or the electrically insulative substrate through the window. The window in the element is located in that area of the element which will be uncovered by the liquid prior to the rest of the element as the liquid boils away or is evacatuated from the vessel.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: March 28, 2000
    Assignee: Otter Controls Limited
    Inventor: Peter James Little
  • Patent number: 6041164
    Abstract: Infrared wire element configurations allow for expansion during use in a thermoplastic welding environment. A mounting apparatus for the infrared wire expansion configuration provides support.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: March 21, 2000
    Inventors: David V. Hofius, Sr., Mark W. Hofius
  • Patent number: 6035097
    Abstract: An electrical heating unit, particularly for a hair drier, comprises a first wire heating element, in particular a spiral coil wire heating element (2) having a heat conductor support comprising at least one support plate (4, 5, 6), and a heat conductor winding (7) arranged thereon. This spiral coil wire heating element serves to heat the stream of air flowing through the hair drier. At least one second wire heating element is provided, serving the function of adapting the electrical voltage for a further electrical load, particularly as a series resistor, for a direct-current motor fitted with an impeller to produce the stream of air. The second wire heating element (3) comprises a frame-type heat conductor support (8) and a heat conductor winding (9) arranged thereon which fills the free area of cross section of the heat conductor support (8). Further, the second heating element (3) is secured to the first heating element (2).
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: March 7, 2000
    Assignee: Braun GmbH
    Inventors: Jurgen Behrendt, Boris Wonka, Wilfried Rolf, Robert Jung
  • Patent number: 6008472
    Abstract: An electric heater for central buffer couplings, with a heating element introduced into a groove of the coupling head. The heating element is covered to the outside. To reduce damage to the heating elements and to prolong the service life of the heater, the heating element in the groove is filled with silicone material, which forms the outer cover and is a flowable single-component material, which undergoes crosslinking at room temperature under the action of atmospheric humidity.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: December 28, 1999
    Assignee: Scharfenbergkupplung GmbH & Co. KG.
    Inventors: Joachim Kreher, Walter Kohler
  • Patent number: 6002116
    Abstract: There is disclosed an arrangement for mounting a heating coil relative to a supporting wall of a clothes dryer heater housing. An insulator has a main body portion adapted to secure the heating coil relative thereto and a base portion adapted to be seated in fixed relation to the supporting wall. The base portion has first and second flanges which curve downwardly and outwardly from the insulator. The support wall has two raised tab members which are adapted to define between these tab members and the supporting wall a recessed channel for receiving the first flange of the insulator. The supporting wall further has two spaced apart guide members for engagement with opposite sides of the second flange of the base member to prevent relative lateral movement of the insulator. The supporting wall has a pivotably movable locking flange which is pivotable about a crease located between the two guide members.
    Type: Grant
    Filed: May 5, 1999
    Date of Patent: December 14, 1999
    Assignee: Camco Inc.
    Inventor: Robert Maurice St. Louis
  • Patent number: 5990463
    Abstract: An oxygen sensor element has a cup-type solid electrolyte body defining an air chamber therein, and a plate-like lamination-type ceramic heater is disposed in the air chamber with a front end portion contacting the bottom portion of the air chamber. Accordingly, the lamination type ceramic heater is prevented form being swung and hit against the electrolyte body.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: November 23, 1999
    Assignee: Denso Corporation
    Inventors: Makoto Shirai, Masayuki Kobayashi
  • Patent number: 5973301
    Abstract: A transparent heating instrument for use in a microscope has a transparent heat-generating plate and an annular housing accommodating the transparent heat-generating plate. The transparent heat-generating plate has a transparent plate, a transparent heat-generating conductive thin coat formed on one surface of the transparent plate, a pair of heat-generating electrodes in contact with the transparent heat-generating conductive thin coat and opposed to each other; and a transparent thin hard coat (transparent thin hard coat) covering the transparent heat-generating conductive thin coat and having substantially insulating property.
    Type: Grant
    Filed: April 29, 1998
    Date of Patent: October 26, 1999
    Assignee: Kabushiki Kaisha Kitazato Supply
    Inventor: Tamotsu Inoue