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| Number | Title | Issue Date |
| 7282639 | Ignition wire having low resistance and high inductance An ignition wire having low resistance and high inductance includes a ferrite core, a coiled wire surrounding the core, and an insulating sheath, where the high voltage ignition wire exhibits a resistance of 130-210 Ohms/ft and an inductance of 44-104 μH. The coile... | 10/16/2007 |
| 6054678 | Heater-sensor complex A heater/sensor with an electric heating coil has an insulating pipe with a bore therein has nonheating wire threaded therethrough. The nonheating wire is attached to a first end of a heating wire which is wound about the periphery of the insulating pipe.... | 04/25/2000 |
| 5875543 | Coil type noise suppressing high voltage resistant wire A coil type, noise suppressing high voltage resistor wherein, without applying a releasing agent to the coil core, the adhesiveness of the fluorocarbon polymer in its unvulcanized state is reduced sufficiently so that unwinding of the unvulcanized core, f... | 03/02/1999 |
| 5349322 | Resistors for thermal flowmeters A resistor for a thermal type of flowmeter includes a ceramic substrate, a thin platinum film formed on the surface of the ceramic substrate, and lead wires for connecting the thin platinum film with an external circuit, and is located in a fluid to detec... | 09/20/1994 |
| 5321386 | Resistor element A resistor element includes a cylindrical, insulating ceramic substrate, a spiral resistor formed on said ceramic substrate, first and second lead wires inserted into the open ends of said ceramic substrate, a connector for making electrical connections b... | 06/14/1994 |
| 5300916 | Sensor element for a thermal type flowmeter A sensor element for a thermal type flowmeter including a ceramic substrate, a thin film, resistor of platinum provided on the outer surface of the ceramic substrate and an outer protective layer of glass provided for protecting the resistor. The glass co... | 04/05/1994 |
| 5168256 | Resistor element using conductors having relatively low thermal conductivity A resistor element for determining a parameter, including a ceramic support having a bearing surface, an electrically resistive body formed on the bearing surface of the ceramic support, a conductor or conductors electrically connected to the electrically... | 12/01/1992 |
| 5144279 | Resistor element with thin porous metallic layer covered with glass coating A resistor element for determining a parameter, which includes a ceramic support having a bearing surface, an electrically resistive metallic layer formed on the bearing surface of the ceramic support, and a glass coating covering the metallic layer. The ... | 09/01/1992 |
| 4916292 | Coiled resistance heating element of carbonaceous material A coiled resistance heating element of carbonaceous or graphite material is disclosed. A simplified process which includes carbonization or graphitization of a coiled strand of an organic material is also disclosed.... | 04/10/1990 |
| 4804935 | Sensor for measurement by electrical heating and method for manufacture of the same A sensor for electrical heating measurement has a core rod which is partly reduced in diameter to form an annular recess, an inner electrically insulating layer formed within the annular recess, a thin metal wire wound about the inner electrically insulat... | 02/14/1989 |
| 4800359 | Winding of noise suppressing high tension resistive electrical wire A winding of noise suppressing high tension resistive electrical wire is disclosed which comprises a reinforcing fiber cord bound by immersion in a low-viscosity liquid resin binder, an elastomeric coating layer formed on a surface of the fiber cord by ap... | 01/24/1989 |
| 4736092 | Braze heater assembly and method An improved heater assembly and method for applying a brazing heat across a selected longitudinal section of a tube is disclosed herein. The heater assembly generally comprises a heater mandrel having an electrical resistance heating element coiled therea... | 04/05/1988 |
| 4636617 | Heating coil assembly for a heavy duty hot air blower A heating coil assembly for use in an air blower device has an annular support element, a first end cap, a core having a heating coil spirally wound thereon, a sleeve surrounding the coil and core, and a second end cap. All components have a centrally dis... | 01/13/1987 |
| 4620086 | Dual coated radiant electrical heating element To reduce the tendency of ground faults and short circuits on electrical heating elements operating at elevated voltages and temperatures, resistance heating wire is coated with a sublayer of magnesium zirconate followed by an outer layer of aluminum oxid... | 10/28/1986 |
| 4523177 | Small diameter radiant tube heater Small portable electrical resistance heated radiant heating unit useful for insertion in tube bores to effect localized high temperature heating. Useful for the internal heating of tubes and tube/sleeve assemblies in steam generators, having bores as smal... | 06/11/1985 |
| 4333069 | Electrical resistor for a printed circuit board and method of making the same An electrical resistor comprising an elongated resistor body having a resistance wire winding extending between its ends and terminals at each end contact the resistance winding and each comprise a strip of given width having a first end portion extending... | 06/01/1982 |
| 4327281 | Aquarium immersion heater with dry operation prevention thermostatic switch An aquarium heater includes a tubular glass housing provided with a temperature control circuit in the upper part thereof for switching on and off a heating element disposed in the lower part of the housing and comprising an elongated non-metallic support... | 04/27/1982 |
| 4283703 | Vibration-resistant probe-like electrical heaters A probe-like, vibration-resistant fast-heating electrical heater assembly for use in a pollution sensor of an exhaust monitoring system for internal combustion engines, which comprises an elongate metal tube having concentrically disposed therein a metal ... | 08/11/1981 |
| 4237444 | Heavy-duty precision wire-wound alternating-current resistor and method of making A heavy-duty precision wire-wound alternating-current resistor comprises a capsule filled with a liquid dielectric formed of a low-viscosity liquid perfluorinated organic compound. Within the capsule of the resistor there is arranged a sectionalized bobbi... | 12/02/1980 |
| 4236139 | Coil assembly A coil assembly is formed by an elastic metal wire helical extension spring coil having convolutions resiliently urged towards each other and held apart by spacers pinched between the convolutions and held there by the spring-back of the convolutions. The... | 11/25/1980 |
| 4155063 | Temperature sensor means A probe-like temperature sensor assembly has a body carrying thereon a length of electrical resistance wire coiled thereabout and having ends of such coiled resistance wire electrically connected to respective terminal means; the resistance wire changes i... | 05/15/1979 |
| 4149067 | Aquarium heater An aquarium heater including an elongated heater element including an insulating member and a wire heater extending from one end of the insulating member to the other end of the insulating member and with an outer sheath of insulating material having open... | 04/10/1979 |
| 4135179 | Electrical temperature sensing device An electrical temperature sensing device for food heating appliances such as toasters and the like which is constructed to provide rapid thermal response, significant resistance variation as a function of temperature, and good mechanical strength so as to... | 01/16/1979 |
| 4129849 | Fault current limiting resistor A fault current limiting resistor for high energy dissipation includes a frustro-conical support structure where the resistor wire is wound on the support structure in the form of a three dimensional spiral. This provides optimum voltage clearances even w... | 12/12/1978 |
| 4112410 | Heater and method of making same A heater comprising a metallic tubular sheath in which an elongate electrical center conductor is coaxially disposed therewithin. A fibrous, inorganic electrical insulation material is wrapped around the center conductor and an electrical resistance heati... | 09/05/1978 |
| 4041438 | Electric heating device This electric heating device comprises a support surrounded by a resistance wire and located within a vacuum outer tube, said resistance being spaced from the inner surface of the outer tube. In order properly to position the support and resistance wire o... | 08/09/1977 |
| 4039996 | Electric heating elements An electric heating element, particularly of the cartridge type, comprising two elongated dielectric cores disposed within a metallic sheath. Each core has a plurality of longitudinally extending openings therein and more particularly one core has three l... | 08/02/1977 |
| 3970816 | Electric heater for heating lubricating oils An oil heater for heating lubricating oils having infrared energy absorbtion peaks within infrared wavelengths ranging from 2.5 to at least 15 microns comprises an electrical infrared heating element coupled to an oil cock and adapted to contact the oil w... | 07/20/1976 |
