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| Number | Title | Issue Date |
| 7343671 | Process for manufacturing a composite polymeric circuit protection device A process for manufacturing a composite polymeric circuit protection device in which a polymeric assembly is provided and is then subdivided into individual devices. The assembly is made by providing first and second laminates, each of which includes a laminar polym... | 03/18/2008 |
| 7069641 | Method for preparing composite materials of a positive temperature coefficient thermistor The present invention discloses a method for preparing a conductive polymeric composite material having carbon black utilized to a structure for composite materials of a positive temperature coefficient thermistor. The method first provides a metal laminated materia... | 07/04/2006 |
| 7041938 | Glow plug, glow plug mounting structure, and glow plug manufacturing method To provide a glow plug capable of speedily increasing the temperature, a glow plug mounting structure, and a process for manufacturing the glow plug. In the invention, the glow plug (1) comprises: a cylindrical sheath tube (3) closed at its fron... | 05/09/2006 |
| 6799367 | Manufacturing method for a spark plug A windbreak provided along a side of a tray prevents insulators located close to an entrance of a furnace from being directly cooled by the air coming into the furnace. All of the insulators mounted on the tray can be uniformly cooled when conveyed out of the furnac... | 10/05/2004 |
| 6314636 | Method of manufacturing an electric heater assembly A method of manufacturing an electric heater assembly with a plurality of electric heating units includes the steps of providing a tray-like support (1) and moulding microporous thermal and electrical insulation material into the support. The tray-like su... | 11/13/2001 |
| 6075231 | Formed molding torpedo device and a method for making the same 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 elec... | 06/13/2000 |
| 5713124 | Method of assembling a fuse housing A current-limiting device is provided having a low profile configuration (generally flat polyhedron) that defines a cavity of predetermined dimensions and an elongated circuitous path through the cavity. The device also includes provisions for supporting ... | 02/03/1998 |
| 5644835 | Heating element method A method of making an elongated electrical heating element having a resistance wire with a helical portion extending between two lead pins surrounded by compacted insulating powder in an outer casing. The lead pins are attached to a tightly coiled resista... | 07/08/1997 |
| 5486682 | Heater assembly for swaged cartridge heater and method of manufacture A cartridge heater assembly to be swaged has a sheath with head and slug ends. A resistance heater unit in the sheath includes a flat rectangular core, a resistance wire winding on the core, and first and second core covers, one on each side. Each end of ... | 01/23/1996 |
| 5111002 | Method of fabricating thermocouple cable and the cable resulting therefrom An improvement in the method for preparing diffusion resistant clad thermocouple cable by placing the thermocouple wires in MgO powder or pellets on a strip of metal cladding material and longitudinally bending the strip of cladding material around the th... | 05/05/1992 |
| 4987675 | Method of manufacturing coiled heating element A coiled heating element is manufactured by providing a coiled element of bare resistance wire in which the coil pitch is not greater than twice the cross-sectional dimension of the wire. The element is stretched by an amount permitting recovery to its or... | 01/29/1991 |
| 4701599 | Insulation system of sheathed heating elements An improved copper sheathed heating element for installation in appliances, such as electric kettles, includes a minor amount of a silicone water-proofing agent admixed with magnesium oxide filler agent prior to the element being annealed. Annealing of th... | 10/20/1987 |
| 4679317 | Screened cable insulated by means of mineral insulation material and method of manufacturing such a cable A cable which is insulated by means of mineral insulation material and which comprises one or more hollow electric conductors, a mineral insulation material provided around the conductor(s) and a metal sheath, the ends of said cable being sealed in a mois... | 07/14/1987 |
| 4593182 | Electric cartridge heater A cartridge heater includes an inner casing in which a heating element is accommodated. This inner casing is surrounded by an coaxially arranged outer casing of larger diameter so that an annular space is defined between the inner and outer casings. In th... | 06/03/1986 |
| 4586246 | Method for assembling resistance temperature detector There is provided a method for assembly of temperature probes. An insertion element or sensor such as a resistance temperature detector is mounted in a receiving cavity and surrounded by sufficient packing to electrically insulate the sensor. A stalk is u... | 05/06/1986 |
| 4468556 | Electric heating elements The electric heater herein disclosed is particularly adapted to heat a fluid and to provide a broad, substantially flat heater surface exposed to the fluid to be heated. The heating element is well adapted for deep fat frying use in that it is of high vol... | 08/28/1984 |
| 4349727 | Heater unit An elongated heater unit including an elongated resistor helix, terminals connected to the ends of the helix, at least a first surrounding metallic sheath, powder insulation material disposed within the first sheath and spacing the resistor helix from the... | 09/14/1982 |
| 4319127 | Electric heating elements Electric heating elements, particularly adapted for use in solder pots or in other uses wherein a substance is to be maintained in a molten or plastic condition, and commonly termed in such uses as over-the-side heaters. A conventional tubular heater is d... | 03/09/1982 |
| 4314401 | Sheathed heating element and sealing of sheathed electric heating element A method of sealing an electric heating element having an electric heating wire inside a tubular metal sheath and electrically insulated therefrom by a compacted filler, comprises impregnating the filler at and in the vicinity of the end of the sheath wit... | 02/09/1982 |
| 4300038 | Electric cartridge heater Elecric cartridge heater having an electric heating conductor in a metallic casing and held on a support of insulating material, each of the ends of the conductor being connected with a lead of lesser electrical resistance than the heating conductor and e... | 11/10/1981 |
| 4281451 | Electric heater -method of making A sheathed electric heater for use as an engine glow plug or the like is formed by providing a closed end metal sheath, installing a centered electric heating element that approaches the sheath closed end, adding a small amount of sinterable metal powder ... | 08/04/1981 |
| 4263577 | Electric tubular heating body and process for its manufacture An electric tubular heater with a bent jacket tube made of strip material, an electric resistance heating element running in the jacket tube and an electrically insulating embedding material surrounding the resistance heating element. The jacket tube is f... | 04/21/1981 |
| 4112577 | Method of making electric heater A sheathed electric heater for use as an engine glow plug or the like is formed by providing a closed end metal sheath with a diameter larger than the finished diameter, Installing in the sheath a centered electric heating element having an enlarged diame... | 09/12/1978 |
| 3934333 | Method of constructing bilateral heater unit A heater unit of bilateral construction is formed by forming a resistor assembly of a resistor helix extending between cylindrical terminals and overlapping the same, inserting the assembly in a sheath tube, filling the tube with MgO powder, placing lamin... | 01/27/1976 |
