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| Number | Title | Issue Date |
| 7326999 | Chip resistor and method for manufacturing same A chip resistor (R1) includes a resistor element (1) having a first surface (1a) and a second surface (1b) opposite to the first surface. Two main electrodes (21), spaced from each other, are provided on the first sur... | 02/05/2008 |
| 7143766 | Temperature controlling device for aerosol drug delivery A portable air temperature controlling device useful for warming air surrounding an aerosolized drug formulation. Warming the air of an aerosol makes it possible to reduce the diameter of aerosol particles produced by an aerosol generation device. Additionally, warm... | 12/05/2006 |
| 5783801 | Seal for sealing and automatically cleaning a sheathed element of a heater plug for diesel engines A sheathed element for a heater plug for diesel engines includes a hollow metal sheath that is open at one end, has a closed opposite end, and defines a cavity. A heating element is positioned in the cavity and the cavity is filled with insulating powder.... | 07/21/1998 |
| 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 |
| 5034595 | Cartridge heater assembly A cartridge heater, wherein the terminal lead pins which project from the terminal end of the heater at the outer surface of the electrical insulating end plug, are substantially reduced in length and provided with at least one flat planar surface on what... | 07/23/1991 |
| 4763102 | Cartridge heater An electrical cartridge heater includes a flat rectangular core of mica. A resistance wire is helically wound around the mica core. A cover sheet of mica is placed on one face of the wound core so that a return wire extends back without shorting against t... | 08/09/1988 |
| 4687903 | Thermostatically controlled electrically heated soldering bit A soldering iron bit is heated by an electrical heating element including a resistive element consisting of granular boron carbide packed in a quartz tube embedded in a piece of copper. A first power lead is electrically connected to the boron carbide at ... | 08/18/1987 |
| 4517454 | Electric heating element, and a hot plate equipped with the heating element An electrical heating element comprises a resistance wire embedded in a refractory material contained in a tubular casing. The casing has the shape of a closed ring which has a U-shaped cross-section. The cross-section is closed by a cover, the opposite sides ... | 05/14/1985 |
| 4492556 | Unitary heated nozzle assembly A unitary integral electrically heated nozzle device for plastic molding or die casting equipment which has a novel casing integral with a heater core, which is insulated to prevent conduction of electricity and loss of thermal transmission to the casing,... | 01/08/1985 |
| 4358667 | Cartridge-type electric immersion heating element having an integrally contained thermostat A cartridge-type electric immersion heating element having an integrally contained, self-limiting thermostatic control included in its electrical circuit includes an electric resistance heating element embedded in compacted powdered insulating material pa... | 11/09/1982 |
| 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 |
| 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 |
| 4163145 | Aquarium heater An aquarium heater having a heat resistant plastic housing. A heat producing electric resistance wire is positioned in the plastic housing in an aluminum foil container. In one embodiment, the container is an aluminum foil pouch which encloses the heat pr... | 07/31/1979 |
| 4150281 | Electric heater construction A heater element is formed by disposing a pair of heater wires and a pair of thermocouple wires and a powdered mineral material in a metal sheath which is subjected to repeated drawing and annealing operations and is then cut to a desired length after whi... | 04/17/1979 |
| 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 |
| 4143262 | Sheath glow plug for rotary piston engines A glow plug for rotary piston engines adapted to be mounted in an engine plug hole so as not to project from the plug hole and to be traversed by a flow of fuel-air mixture temporarily trapped in the plug hole. The plug includes an elongated protective tu... | 03/06/1979 |
| 4125761 | Bilateral heater unit A bilateral heater unit including an elongated sheath in the form of two substantially parallel adjacent leg portions interconnected by a return bend portion formed of the elongated sheath bent back upon itself and integral with the adjacent parallel exte... | 11/14/1978 |
| 3982099 | Bilateral heater unit and method of construction 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... | 09/21/1976 |
| 3970821 | Electrically heated torpedo A torpedo heater device for plastic molding or diecasting equipment comprised of a novel casing having an integral heater core and means to seal the casing for retaining the heater core in place and preventing loss of thermal transmitting packing containe... | 07/20/1976 |
