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| Number | Title | Issue Date |
| 7955740 | Fuel cell stack and hydrogen supply including a positive temperature coefficient ceramic heater A fuel cell system that employs one or more PTC ceramic heaters that do not need to be self-regulated, and thus will not require various control components, such as temperature sensors. The PTC ceramic heaters include a ceramic material that is designed for a partic... | 06/07/2011 |
| 7773867 | Hot melt adhesive hose assembly having redundant components A hot melt adhesive hose assembly has a hot melt adhesive hose core, and a pair of heater circuits wrapped around the external peripheral surface of the hose core. A first one of the heater circuits is electrically connected to the hose assembly electrical circuitry... | 08/10/2010 |
| 7711251 | Device for temperature controlled heating of a fluid line The invention relates to a device for temperature controlled heating of a fluid line which comprises a jacket conduit made of a flexible material and provided with a longitudinal slot across which a fluid line is insertable into a cavity of said jacket conduit, at l... | 05/04/2010 |
| 7322415 | Subterranean electro-thermal heating system and method A subterranean electro-thermal heating system including one or more heater cable sections extending through one or more heat target regions of a subterranean environment and one or more cold lead sections coupled to the heater cable section(s) and extending through ... | 01/29/2008 |
| 7260320 | Electric heat tracing Heat tracing of an elongate, thermally-insulated substrate is effected by means of one or more elongate, constant wattage electric heaters mounted in thermal contact therewith beneath the thermal insulation. A metal conduit is mounted on the substrate and extends aw... | 08/21/2007 |
| 7254320 | Water supply device for humidifier A water supply device for a humidifier having a water tank for retaining water and a vaporizing chamber for producing water vapor with the water supplied from the water tank, is disclosed in which the water supply device comprises a water tube for supplying the wate... | 08/07/2007 |
| 7243674 | Collapsible enclosure A collapsible enclosure includes a roof, a rear wall, a pair of sidewalls, a front wall, each wall having an outside and inside surface and an open bottom. The cover includes heat insulation material covering substantially all of each inside surface of each wall. A ... | 07/17/2007 |
| 7228067 | Chromatography column assembly with woven tubular mesh heater element A direct-heating column assembly for chromatography, includes at least one capillary column and at least one element made of electrically conductive material in contact with the capillary column. The element includes a plurality of filaments woven together to form a... | 06/05/2007 |
| 7203419 | Heated conduit A conduit comprising a pipe, an electrical heater extending along the length of the pipe, and a thermally insulating jacket extending around the pipe and heater. The pipe comprises a plastic inner tube. The plastic inner tube is received within a deformable metal tu... | 04/10/2007 |
| 7190892 | Fluid line A fluid line with a pipe provided with a sleeve of a woven or braided fabric, wherein the pipe, in turn, includes at least one conductor. In the finished state of the fluid line, the sleeve immediately surrounds the pipe and each conductor is loosely arranged in the... | 03/13/2007 |
| 7077164 | Pipe A pipe has an innermost layer, outside of which there is an inner electrode layer, outside of which there is an insulating layer, outside of which there is an outer electrode layer. The innermost layer is made of plastic by continuous extrusion and the insulating la... | 07/18/2006 |
| 7066729 | Gas powered heat delivery system A gas powered heat delivery system, comprising a fuel gas supply, a catalytic heater connected to the fuel gas supply; a tank containing fluid, the tank being disposed to receive heat from the catalytic heater; a one way conduit having an inlet for receiving fluid f... | 06/27/2006 |
| 7017604 | Thermally insulating interfaces At least one of a valve body, a sealing tip and a vessel or conduit includes at least one space formed therein between an interior of the vessel or conduit and an internal cavity of the valve. The space includes an active or passive thermal insulation forming at lea... | 03/28/2006 |
| 6993252 | Self-monitoring flow-through heater A self-monitoring flow-through heater. The heater has a wire inside a tube, and the wire heats and monitors the temperature of a fluid flowing through the tube. The wire has a high specific resistivity and a high temperature coefficient of resistance, so that monito... | 01/31/2006 |
| 6932105 | Antifreezing guard for pipes A system and kit for forming an inexpensive protective plenum around pipes subject to freezing is disclosed. The system uses tubes formed of thin, flexible material, such as plastic tubes, to form the plenum. The plenum may be installed in sections with the sections... | 08/23/2005 |
| 6792200 | System and method for a pre-fabricated heat-traced header A flexible heat traced pipe is uniquely pre-fabricated to expedite the installation and repair process. The flexible heat traced pipe includes an inner structure, an outer structure, a heat trace, and a connector which are all cured into a unitary fluid carrying dev... | 09/14/2004 |
| 6727481 | Heated conduit A heated conduit system is disclosed for preventing the freezing of a fluid flowing therethrough, and includes an elongate flexible hose including an inner wall for containing the fluid flowing through the elongate flexible hose and an outer wall for encasing the in... | 04/27/2004 |
| 5933574 | Heated fluid conduit A fluid conduit has a first end and a second end. An insulating cover surrounds the fluid conduit. An elongated heat trace tape is captured between the insulating cover and the fluid conduit. A source conductor extends outwardly from the insulating cover ... | 08/03/1999 |
| 5911748 | Water supply line heater control for an ice maker in a recreational vehicle refrigerator An ice maker water supply line is provided with a heater. The heater is controlled by a thermally operated switch. The temperature sensor of the switch senses ambient temperature and operates the heater to prevent freezing of the water supply line. The ic... | 06/15/1999 |
| 5900179 | Heating cable control and monitoring method and system A method and system for controlling heating cables wherein a plurality of two-conductor heating cables are disposed in contact with heatable vessels to heat the vessels. Power lines having at least two conductors are connected to the heating cables throug... | 05/04/1999 |
| 5782301 | Oil well heater cable A heater cable is strapped alongside tubing in a well to heat the production fluids flowing through the tubing. The heater cable has three copper conductors surrounded by a thin electrical insulation layer. An extrusion of lead forms a protective layer ov... | 07/21/1998 |
| 5723848 | Heating cable control and monitoring method and system A method and system for controlling heating cables wherein a plurality of two-conductor heating cables are disposed in contact with heatable vessels to heat the vessels. Power lines having at least two conductors are connected to the heating cables throug... | 03/03/1998 |
| 5294780 | Heating and insulation arrangement for a network of installed pipes and method A technique for installing and replacing, if necessary, readily bendable electrical heat-tracing cable on and insulating a network of installed pipes including straight sections, straight joints, and elbow sections is disclosed herein. In accordance with ... | 03/15/1994 |
| 5287913 | Hose assembly and temperature control system utilizing the hose assembly A temperature control system for an adhesive application system in which adhesive is delivered from a pump to a nozzle for application in bead form to a part. The control system includes a hose assembly extending from the pump to the nozzle and including ... | 02/22/1994 |
| 5256844 | Arrangement in a pipeline transportation system The present invention relates to a transportation pipe or conduit (10, 20, 30) which preferably is adapted to be installed on the seabed between a permanent or floating off-shore platform (3) and an on-shore terminal (4). The transportation conduit compri... | 10/26/1993 |
| 5182792 | Process of electric pipeline heating utilizing heating elements inserted in pipelines A process to clear pipelines carrying fluids viscous and/or rich in organic residues includes the introduction of a heating element inside a pipeline carrying the fluids through a coupling spool which is intercalated in the fluid-carrying pipeline. Simult... | 01/26/1993 |
| 5086836 | Retarding heat tracing system and method of making same A retarding heat tracing system amd method of making same adapted to externally heat a process pipe including a channel member, a heat transfer element, a retarding heat transfer strip made from a retarding heat transfer material, and a plurality of clamp... | 02/11/1992 |
| 4874925 | Electrically heated hose assembly for conveying electrically conductive liquids An electrically heated hose for providing heat only to the section of hose which contains an electrically conductive liquid therein includes a plurality of resistance heating elements positioned between inner and outer layers of electrically insulative ma... | 10/17/1989 |
| 4859834 | Power controller for heat tracing cable which responds to ambient temperature A power controller is provided for controlling the distribution of power to heat tracing cable or the like. Heat tracing cable is used for maintaining a desired process temperature in pipes or vessels when the outside ambient temperature falls below the d... | 08/22/1989 |
| 4791277 | Heating and insulation arrangement for a network of installed pipes and method A technique for installing and replacing, if necessary, readily bendable electrical heat-tracing cable on and insulating a network of installed pipes including straight sections, straight joints, and elbow sections is disclosed herein. In accordance with ... | 12/13/1988 |
| 4751495 | Analog pulsed heat trace monitor or the like A system, utilizing an analog pulsed signal, is for monitoring the condition of a system, by way of illustration, a multi-circuit electrically heat-traced substrate. The system senses the temperature of the substrate at the end of a heat traced circuit, c... | 06/14/1988 |
| 4725713 | Electrically heated hose employing a hose simulator for temperature control A system for electrically heating a hose of the type used to transport one or more fluid components from a remote location to a point of application includes at least one fluid conduit and an electric heating element enclosed within a thermal insulation b... | 02/16/1988 |
| 4661687 | Method and apparatus for converting a fluid tracing system into an electrical tracing system A method and apparatus for converting a fluid tracing system, e.g., a thermally insulated steam heat tracing system for a substrate, into an electrical heat tracing system for the substrate. A typical steam tracing system includes a substrate to be heated... | 04/28/1987 |
| 4650964 | Electrically heated transfer line for capillary tubing A heated transfer line for heating a small glass capillary tube is disclosed. The transfer line is small and removable yet highly efficient, capable of uniformly heating a glass capillary tube over a 5-inch length to more than 400° C. with less than 30 w... | 03/17/1987 |
| 4606320 | Fuel preheating unit A fuel preheating unit for internal combustion engines is placed between the carburetor and fuel pump. The unit consists of spaced concentric insulating sleeves surrounding the fuel line and held in assembled relationship by end plates. An electrical heat... | 08/19/1986 |
| 4575614 | Pipe thawing apparatus An electric pipe thawing apparatus for thawing frozen water pipes by passing electric current therethrough incorporates various safety feature rendering the apparatus fail-safe in operation. The apparatus includes an A.C. generator from which can be obtai... | 03/11/1986 |
| 4558210 | Electric cast-metal heater An electric heater comprising a metal casting having an electric heating element of sinuate shape cast therein. The casting has a plurality of ventilation openings therethrough located between the sinuations of the heating element for permitting air to fl... | 12/10/1985 |
| 4558206 | Electric heating apparatus for providing freeze protection for fluid-control devices at well sites An electric heating apparatus for providing freeze protection for a fluid-control device, such as a gas regulator, at a well site includes a flexible electric heating pad adapted to be wrapped around the control device to be freeze-protected and a two par... | 12/10/1985 |
| 4492951 | Glass captivated heating unit for still or the like A capillary tube is shrunk around a wire heating element, fashioned into the desired configuration, and situated between the exterior surface of a cylindrical inner glass tube and the interior surface of a cylindrical outer glass tube, to form an assembly... | 01/08/1985 |
| 4484061 | Temperature control system for liquid chromatographic columns employing a thin film heater/sensor A temperature control system for a liquid chromatographic column includes a thin film heater/sensor comprising a foil-like patterned heating element adhesively mounted between a pair of flexible electrically insulative layers. A patterned foil-like temper... | 11/20/1984 |
