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| Number | Title | Issue Date |
| 7525072 | Heated O-ring A heated O-ring that has particular application for providing sealing in the connector region of a compressed hydrogen storage tank in a fuel cell system. In one embodiment, an electrical heating wire is wound through the O-ring so that resistive heating is provide ... | 04/28/2009 |
| 7390993 | Electrical sleeve heater An electrical sleeve heater for an element having a generally cylindrical outer surface. The heater has a generally helical coil centered on an axis and having a pair of opposite coil ends, a pair of generally coaxial, axially aligned, and similar tubes each fixed t... | 06/24/2008 |
| 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 |
| 6903308 | Vacuum cast ceramic fiber insulated band having heating and cooling elements A ceramic fiber band that can fulfill a plurality of functions in connection with the injection and/or extrusion process of an injection molding or extrusion apparatus (i.e. heat, cool, and insulate), thereby reducing overall energy costs and creating a safer workin... | 06/07/2005 |
| 6629396 | Cell adaptable for construction of a housing structure A manufacture or cell (20) formed by a closed case (21) of fabric material (23) in which a multiple number of meltable plastic pellets (24) are disposed and with which an electrical line (25), here in the form of lines (25-1, 25-2), combine in an interwov... | 10/07/2003 |
| 6307183 | Ignition device for electronic lighter with heating wire ceramic mount having hemispherical groove An ignition device of an electronic lighter comprises a ceramic seat, electric heating wires, conductive wires, and a circuit board; the ceramic seat having a pair of through holes. The conductive wires pass through the through holes. A lower end of each ... | 10/23/2001 |
| 5798504 | Length-adjustable electrical sleeve heater A sleeve heater has a pair of end tubes centered on a common axis and having axially confronting and spaced inner ends, an electrically resistive helicoidal heating coil centered on the axis, and at least one tubular center tube coupled to the end tubes a... | 08/25/1998 |
| 5578232 | Open-coil heater assembly and insulator therefor An open coil electric heater comprising a rigid support frame composed of a pair of longitudinally extending, laterally spaced members, with cross members between and secured to the longitudinal members. The cross members carry ceramic insulator members w... | 11/26/1996 |
| 5543603 | Heat conductor support disk A multi-apertured ceramic disk heat conductor support for use in a heating element for electrically heating industrial furnace installations. The ceramic disk has a center aperture extending between exterior surfaces on an axis of symmetry for receiving a... | 08/06/1996 |
| 5401937 | Sheathed heater A sheathed heater having a cylindrical metal sheath includes at least two rod shaped insulator core pieces that are separated from each other and inserted into the sheath along an axial direction of each core piece. Two or three lead pins separated from e... | 03/28/1995 |
| 5334818 | Modular high density electric heating element arrangement for an air flow heater A heating element for an air flow comprises a channel shaped bracket including a base and side walls at right angles thereto within which is mounted a pair of mica sheets arranged parallel to the base and at right angles to the sides and connected to the ... | 08/02/1994 |
| 5335310 | Modular heating assembly with heating element support tubes disposed between hangers A modular type heating unit or assembly having particular utility for use in a high temperature electric furnace, preferably in a group arrangement, comprises an insulating fibrous refractory block, a pair of spaced apart support rods, inner and outer sup... | 08/02/1994 |
| 5225662 | Flexible heating element for a hot runner housing including method of manufacture and method of installation A flexible vertebra-like heating element useful in a hot runner housing of an injection molding machine including method of manufacture and method of installation.... | 07/06/1993 |
| 5157241 | Temperature control device provided in a plastic-processing machine The temperature control device comprises heat transfer shells, each of which consists of two shell sections, each of which consists of a metal casting, in which a single temperature control element is embedded. The temperature control element has been for... | 10/20/1992 |
| 4828020 | Internal finned heater-cooler for an extruder barrel A Heater-Cooler unit that provides efficient heating and cooling in such a manner that the temperature is easily controlled. The unit's 360 degree exposure enables both fins and barrel surface to be in complete contact with cooling air. The structure of t... | 05/09/1989 |
| 4816649 | Flexible heating assembly A flexible heating assembly includes a plurality of stranded or otherwise combined, insulated electrical conductors including feeder lines and, possibly, additional lines and constituting a subassembly; a heating conductor loops around this subassembly in... | 03/28/1989 |
| 4733055 | Heat transfer heating element and method An electric heating element with a resistance element, a metal sheath in heat transfer relation to the resistance element on one side of the sheath and a thin, dry coating of refractory material major proportion by weight of which is boron nitride on anot... | 03/22/1988 |
| 4712086 | Support frame for resistor elements in a heating furnace for glass sheets The invention relates to a support frame for a resistor element in a heating furnace for glass sheets, said flame providing a substantially continuously extending, elongated rest surface for a resistor element. The support frame elements consist of trough... | 12/08/1987 |
| 4695821 | Resistor element assembly for a heating furnace of glass sheets and method of replacing a resistor element The invention relates to a resistor element assembly for a glass sheet heating furnace and to a method of replacing a resistor element. A resistor element is built by placing successively in longitudinal direction ceramic elements, with a resistance wire ... | 09/22/1987 |
| 4652852 | Device for holding helically wound wire resistor of a wire-wound type potentiometer Device for holding a helically wound wire resistor of a potentiometer in a helical groove comprising, an outer cylindrical member having an inwardly projecting ridge extending over the length thereof and a projecting claw, and an inner cylindrical member ... | 03/24/1987 |
| 4649368 | Electrical resistance heating element A resistance heating element of the ribbon type for use in a high temperature electric furnace. The element has the same curved cross-sectional configuration throughout its entire length to give it strength and stiffness and permits the element to be bent... | 03/10/1987 |
| 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 |
| 4628191 | Electric thermal unit An electric thermal unit comprises a spiral coil resistance heater incorporated in a ring-like structure formed by mutually fastened ceramic strips. This structure is surrounded by two coaxial interspaces communicating with each other at the upper region ... | 12/09/1986 |
| 4613744 | Methods of repair A method of repair of an article incorporating the application of considerable thermal energy, e.g. a welding operation, requires heating of the article both in the repair area and surrounds wherein the heating of the repair area and surrounds is carried ... | 09/23/1986 |
| 4565921 | Electric thermal unit for controllably heating cylinders having two coaxial interspaces for circulating ventilation air therethrough An electric thermal unit is disclosed for controllably heating cylinders in plastic material extruders, rubber drawing machines, and the like apparata. The electric thermal unit is designed to provide closed circuit ventilation air circulation such as to ... | 01/21/1986 |
| 4553025 | Insulated electric heating element An insulated electric heating element particularly suitable for use in a hot plate or electric stove is disclosed. The insulated electric heating element (11) includes a unitary two chamber housing (21). The chambers are located one above the other. A U-s... | 11/12/1985 |
| 4510377 | Small cartridge heater A cylindrical core of a ceramic such as alumina (Al2 O3) has grooves in the form of a double lead thread. A coil of Nichrome V is placed in the grooves, starting in one lead of the thread and returning in the other. A split ring of a... | 04/09/1985 |
| 4504734 | Electric resistance heating assembly for plastics material extruders The assembly comprises coiled resistances passing through one or more holes as transversely formed in ceramics material strips so shaped as to be effective to be coupled to one another in a partial sliding relationship and to provide a structure having vo... | 03/12/1985 |
| 4499334 | Heat resistant sheathed insulated electrical conductors The leads to a heater for an electrothermal hydrazine monopropellant thruster comprise tungsten conductors wrapped with smaller diameter tungsten support wire and insulated with beads of alumina (Al2 O3). A transition section connect... | 02/12/1985 |
| 4481411 | Electrical heater rack assembly with stand-off insulators A heater rack assembly, of the type which supports an electric heating coil in a pattern of parallel rows in a plane, utilizes double-ended stand-off insulators which are formed wafer-like in the plane. The insulators have, at each end, pairs of hook port... | 11/06/1984 |
| 4480176 | Insulated electric heating element An insulated electric heating element particularly suitable for use in a hot plate or electric stove is disclosed. The insulated electric heating element includes an insulating member comprising a layer of ceramic insulation surrounding the sides and bott... | 10/30/1984 |
| 4464565 | Extensible tape heater An elongated flexible resistance heating element includes a heat transmitting cover that is generally coextensive with the element. A resilient element is provided adjacent one end of the heating element to accommodate extension of the cover for use of th... | 08/07/1984 |
| 4337390 | Electric heating element An improved electrical heating element is constructed to increase the amount of electrical wire per unit space available for plug-type convection heating units. The heating element includes a metal frame structure with a plurality of spaced support elemen... | 06/29/1982 |
| 4322606 | Electrical heating element assembly An insulator for an electrical heating element includes an inner section and an outer section removably disposed thereabout. The electrical heating element is removably and loosely received within at least one of the sections. Several of these insulators ... | 03/30/1982 |
| 4320253 | Ceramic beads for heaters A heating element comprising a plurality of ceramic components strung together on a heating wire to form a flexible structure, adjacent ceramic components comprising integrally formed mating projections and depressions. The element comprises ceramic compo... | 03/16/1982 |
| 4255649 | Flexible heating elements A heating element comprising a plurality of ceramic components strung together on a heating wire to form a flexible structure, adjacent ceramic components comprising integrally formed mating projections and depressions. The element comprises ceramic compo... | 03/10/1981 |
| 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 |
| 4179603 | Radial blade heating device An electric radial blade type heating element is provided for industrial furnaces or other heated devices in which the electrical conductors are relatively thin flat strips or blades, rectangular in cross section and free floating relative to the insulati... | 12/18/1979 |
| 4144445 | Open coil electric heaters An open coil electric heater wherein the resistance conductor is supported on a frame. The resistance conductor in this instance, instead of being in the form of a single coiled wire, is composed of a plurality of strands of wire so as to reduce the cost ... | 03/13/1979 |
| 4122329 | Electrical air heating appliance An electric air heating appliance includes a housing defining an air flow path in which is positioned a resistance heater assembly which includes a plurality of air vanes for reducing air swirling. The heater assembly includes a semi-rigid assembly of mic... | 10/24/1978 |
