With Resistive-element Attaching, Securing Or Electrical Insulation Means Patents (Class 219/542)
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Patent number: 6864464Abstract: 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: GrantFiled: June 13, 2003Date of Patent: March 8, 2005Assignee: Ceramaspeed LimitedInventor: Kevin Ronald McWilliams
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Patent number: 6807220Abstract: 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: GrantFiled: May 23, 2003Date of Patent: October 19, 2004Assignee: MRL IndustriesInventor: Kevin B. Peck
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Publication number: 20040182853Abstract: 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: ApplicationFiled: March 21, 2003Publication date: September 23, 2004Inventors: H. Keith Howard, Robert Kirby
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Publication number: 20040144765Abstract: 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: ApplicationFiled: December 12, 2003Publication date: July 29, 2004Applicant: Joseph Vogele AGInventor: Michael Heindtel
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Patent number: 6759805Abstract: 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: GrantFiled: March 15, 2001Date of Patent: July 6, 2004Assignee: General Electric CompanyInventors: Francis Gerard de Cort, Derek Peter Hurst
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Patent number: 6740857Abstract: 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: GrantFiled: December 6, 2002Date of Patent: May 25, 2004Assignee: Chromalox, Inc.Inventors: Sidney L. Furlong, Amy M. Barker, Sam W. Henry
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Patent number: 6740853Abstract: 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: GrantFiled: September 17, 2002Date of Patent: May 25, 2004Assignee: Tokyo Electron LimitedInventors: Wayne L. Johnson, Eric J. Strang
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Patent number: 6737615Abstract: 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: GrantFiled: March 6, 2002Date of Patent: May 18, 2004Assignee: MicroHellix Systems GmbHInventors: Karl-Heinz Lange, Ingo Schehr
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Patent number: 6717113Abstract: 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: GrantFiled: July 2, 2002Date of Patent: April 6, 2004Assignee: ASML Holding N.V.Inventor: Dikran S. Babikian
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Patent number: 6713728Abstract: 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: GrantFiled: February 27, 2003Date of Patent: March 30, 2004Assignee: Xerox CorporationInventors: Patrick B. Justice, Larry E. Hindman, Trevor J. Snyder, Michael P. O'Dierno, Jeffrey R. Kohne
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Patent number: 6684659Abstract: 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: GrantFiled: November 15, 2001Date of Patent: February 3, 2004Assignee: Matsushita Refrigeration CompanyInventors: Masaaki Tanaka, Takeshi Shimizu, Koichi Nishimura
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Publication number: 20030160043Abstract: 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: ApplicationFiled: January 9, 2003Publication date: August 28, 2003Applicant: David & Baader GmbHInventor: David Clemens
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Patent number: 6580061Abstract: 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: GrantFiled: December 15, 2000Date of Patent: June 17, 2003Assignee: Trebor International IncInventor: Steven A. Black
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Publication number: 20030102301Abstract: 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: ApplicationFiled: November 30, 2001Publication date: June 5, 2003Inventors: Jimmy L. Sherrill, Ike D. Walker
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Patent number: 6515262Abstract: 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: GrantFiled: July 11, 2001Date of Patent: February 4, 2003Inventor: George T. C. Li
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Patent number: 6509550Abstract: 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: GrantFiled: October 5, 2001Date of Patent: January 21, 2003Inventor: George T. C. Li
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Patent number: 6479797Abstract: 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: GrantFiled: November 8, 2000Date of Patent: November 12, 2002Assignee: Tigers Polymer CorporationInventors: Kiyoshi Yanagimoto, Motohiro Nishii
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Patent number: 6475606Abstract: 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: GrantFiled: January 22, 2001Date of Patent: November 5, 2002Assignee: Ibiden Co., Ltd.Inventor: Takeo Niwa
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Patent number: 6470143Abstract: 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: GrantFiled: April 2, 2001Date of Patent: October 22, 2002Inventor: Bernard Peyronny
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Patent number: 6459074Abstract: 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: GrantFiled: July 21, 2000Date of Patent: October 1, 2002Assignee: Bacab SAInventors: Thomas Michelbach, Mario Colpa, Werner Bolleter
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Publication number: 20020125243Abstract: 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: ApplicationFiled: March 6, 2002Publication date: September 12, 2002Applicant: MicroHellix Systems GmbHInventors: Karl-Heinz Lange, Ingo Schehr
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Patent number: 6410886Abstract: 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: GrantFiled: July 10, 1998Date of Patent: June 25, 2002Assignee: Nitinol Technologies, Inc.Inventor: Gerald J. Julien
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Patent number: 6365882Abstract: 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: GrantFiled: June 28, 2000Date of Patent: April 2, 2002Assignee: Cadif SRLInventor: Aldo Stabile
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Patent number: 6353707Abstract: 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: GrantFiled: January 6, 1999Date of Patent: March 5, 2002Assignee: Ceramitech, Inc.Inventors: Irina Loktev, Igor Papirov
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Publication number: 20020003137Abstract: 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: ApplicationFiled: May 22, 2001Publication date: January 10, 2002Applicant: KYOCERA CORPORATIONInventors: Kiyoshi Yokoyama, Takafumi Turumaru, Hiroyuki Arima, Hideaki Shimozuru
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Publication number: 20010054611Abstract: 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: ApplicationFiled: July 3, 2001Publication date: December 27, 2001Applicant: TOTOKU ELECTRIC CO., LTD.Inventors: Shouhei Miyahara, Hidekazu Aoki, Kazuhiko Koiwai, Atsushi Nakajima, Toshikazu Nishiwaki, Yutaka Mizumura
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Publication number: 20010017295Abstract: 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: ApplicationFiled: January 3, 2001Publication date: August 30, 2001Applicant: Ivoclar AGInventors: Gottfried Rohner, Johannes Lorunser, Horst Ulbricht
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Patent number: 6265700Abstract: 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: GrantFiled: March 27, 2000Date of Patent: July 24, 2001Assignee: Ibiden Co., Ltd.Inventors: Fumishige Miyata, Tatsuya Koyama, Seiko Okuda
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Patent number: 6236027Abstract: 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: GrantFiled: March 27, 2000Date of Patent: May 22, 2001Assignee: Ibiden Co., Ltd.Inventors: Fumishige Miyata, Masahiro Tsuji
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Patent number: 6207935Abstract: 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: GrantFiled: June 11, 1999Date of Patent: March 27, 2001Assignee: Diehl AKO Stiftung & Co. KGInventors: Gunter Dittmar, Josef Hecht, Gunther Wildner
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Patent number: 6184507Abstract: 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: GrantFiled: October 28, 1999Date of Patent: February 6, 2001Assignee: Nippon Carbon Co., Ltd.Inventors: Tadayoshi Kouno, Saburou Tanaka, Akira Masaoka
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Patent number: 6169275Abstract: 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: GrantFiled: June 3, 1999Date of Patent: January 2, 2001Assignee: NGK Spark Plug Co, Ltd.Inventors: Yoshiro Noda, Toshihiko Aoyama
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Patent number: 6150643Abstract: 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: GrantFiled: June 8, 1999Date of Patent: November 21, 2000Assignee: Koyo Thermo Systems Co., Ltd.Inventors: Koichi Kitamura, Masaaki Ueda, Hiroyuki Hanaya
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Patent number: 6142207Abstract: 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: GrantFiled: February 20, 1998Date of Patent: November 7, 2000Assignee: Sofragraf IndustriesInventor: Francis Richardot
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Patent number: 6134386Abstract: 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: GrantFiled: July 19, 1996Date of Patent: October 17, 2000Inventor: James Martin O'Donnell
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Patent number: 6118109Abstract: 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: GrantFiled: March 25, 1997Date of Patent: September 12, 2000Assignee: Rohm Co., Ltd.Inventor: Teruhisa Sako
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Patent number: 6114667Abstract: 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: GrantFiled: August 4, 1998Date of Patent: September 5, 2000Assignee: SEB S.A.Inventors: Jean-Marie Balandier, Bernard Remy, Daniel Joannes, Michel Klinger
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Patent number: 6087639Abstract: 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: GrantFiled: July 9, 1999Date of Patent: July 11, 2000Assignee: Hart & Cooley, Inc.Inventors: Roger P. Engelke, Leon Lietch
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Patent number: 6075231Abstract: 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: GrantFiled: January 28, 1999Date of Patent: June 13, 2000Inventor: Walter Crandell
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Patent number: 6073340Abstract: 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: GrantFiled: May 29, 1998Date of Patent: June 13, 2000Assignee: Denso CorporationInventors: Makoto Shirai, Akira Fujii, Masayuki Kobayashi
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Patent number: 6060699Abstract: 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: GrantFiled: May 13, 1997Date of Patent: May 9, 2000Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Sakurai, Hiroshi Hosokawa
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Patent number: 6054690Abstract: 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: GrantFiled: February 19, 1998Date of Patent: April 25, 2000Assignee: Norton Pampus GmbHInventors: Dominique Petit, Peter Wolki
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Patent number: 6051817Abstract: 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: GrantFiled: June 3, 1998Date of Patent: April 18, 2000Assignee: AKO-Werke GmbH & Co. KGInventors: Norbert Morsch, Jorg Meyer
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Patent number: 6043467Abstract: 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: GrantFiled: May 9, 1997Date of Patent: March 28, 2000Assignee: Otter Controls LimitedInventor: Peter James Little
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Patent number: 6041164Abstract: 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: GrantFiled: November 4, 1998Date of Patent: March 21, 2000Inventors: David V. Hofius, Sr., Mark W. Hofius
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Patent number: 6035097Abstract: 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: GrantFiled: April 9, 1998Date of Patent: March 7, 2000Assignee: Braun GmbHInventors: Jurgen Behrendt, Boris Wonka, Wilfried Rolf, Robert Jung
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Patent number: 6008472Abstract: 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: GrantFiled: June 25, 1997Date of Patent: December 28, 1999Assignee: Scharfenbergkupplung GmbH & Co. KG.Inventors: Joachim Kreher, Walter Kohler
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Patent number: 6002116Abstract: 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: GrantFiled: May 5, 1999Date of Patent: December 14, 1999Assignee: Camco Inc.Inventor: Robert Maurice St. Louis
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Patent number: 5990463Abstract: 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: GrantFiled: June 5, 1998Date of Patent: November 23, 1999Assignee: Denso CorporationInventors: Makoto Shirai, Masayuki Kobayashi
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Patent number: 5973301Abstract: 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: GrantFiled: April 29, 1998Date of Patent: October 26, 1999Assignee: Kabushiki Kaisha Kitazato SupplyInventor: Tamotsu Inoue