Abstract: This invention refers to an electric heating system for subsea flexible pipelines (13) including the circulation of an electric current which runs through the metallic armorings (31) of the flexible pipeline (13), generating energy and dissipating a certain amount of heat to the pipeline (13) and to the fluid contained inside same, maintaining the temperature differential between the environment and the production line, so as not to interrupt the fluid flow.

Abstract: Articles including a thin laminar heating element composed of a sintered conductive polymer, and electrodes attached to the heating element so that current flows in the plane of the element. The article can be placed between and in contact with two substrates, and then heated to join the two substrates together. Preferably at least one of the substrates is polymeric and becomes melt-fused to the article.

Abstract: The invention relates to a technique which enables good electric contact to be surely made between a heat roller and conducting terminals serving as feed means. The heat roller comprises a heating portion and shaft portions which are integrally molded from the same material in the form of a molded member at least both end portions of which are hollow. The conducting terminals are capable of elastically expanding and contracting in the radial direction and are closely fitted into the hollow portions at both ends of the molded member.

Abstract: A heater comprises an insulating substrate which carries a pair of transversely conductor strips, a resistor line extending between the respective conductor strips. The respective conductor strips are connected to the resistor line by electrode teeth spaced longitudinally of the main resistor line and arranged in staggered relation on both sides of the resistor line.

Abstract: Capacitive humidity sensor comprising a substrate, a moisture-impermeable conducting bottom layer as first capacitor plate, a dielectric layer, and a moisture-permeable conducting top layer as second capacitor plate, and connecting wires associated with the first and second capacitor plates, whereby the change in the dielectric constant, and therefore in the capacitance value, due to absorption of water molecules is measured. The substrate is a flexible copper laminate in which at least the conducting bottom layer is etched, and the conducting top layer comprises a solid printed layer having a conducting grid pattern, which is printed with conducting ink.

Abstract: An electrical storage heater having a heat store which is electrically heated, an internal air passage which extends upwardly through the heat store, a flow controller which is located above the upper end of the internal passage for controlling the convective flow of the air through the internal passage, and an actuator for the flow controller. The actuator includes a bimetallic element secured to the flow controller.

Abstract: An electrically heated toolbox for heating hand tools that have been stored or used in a cold environment. The toolbox is a multiple drawer container which has installed therein heating sheets integrally connected to an outside electrical power source, alternating current (AC) or direct current (DC). The heating sheets warm the hand tools by radiated heat or direct heat when the heating sheets are connected to the outside power source. A desired temperature may be obtained by using the rheostat temperature setting device. The toolbox may be connected to a standard AC plug connection, a DC vehicle battery or, if desired, a cigarette lighter outlet of a vehicle.

Abstract: A method for fabricating an electrically heatable coated transparency, particularly useful as a vehicle windshield, is disclosed. The method involves sputtering on a substrate surface layers of metal oxide, metal-containing primer, infrared reflective metal, metal-containing primer and metal oxide to produce an electroconductive coating, and applying first and second bus bars to the substrate in contact with the coating.

Abstract: A monolithic capacitor whose capacitance can be varied by removing part of an electrode. The capacitor may comprise an end termination, coupled to a plurality of internal electrodes which are disposed in a dielectric, and a top electrode which is disposed on one side of the dielectric. If a part of the top electrode is removed, the capacitance of the monolithic capacitor is changed, without an unacceptable change in "Q". The top electrode may be disposed so that a part of it may be removed with an energy beam device, such as a laser or a particle beam.

Abstract: An apparatus and method for removing a modular ball head from a prosthesis stem by heat expanding the modular ball head and subjecting it to an impact force in a direction such that it is removed from the prosthesis stem. A housing receives the modular ball head therein while the prosthesis stem is still within a patient's femur. A heater within the housing heats the modular ball head. An impact hammer comprised of a mass slideably mounted on a rod is attached to the housing and has an anvil stop at one end. The housing is thermally insulated to retain heat while protecting an operator and the patient from burns. The heat generated is controlled as to amount and duration.

Abstract: The invention relates to a ceramic heater for use, e.g., as a glow plug for a diesel engine or as an igniter for an oil or gas burner. The ceramic heater has a nonoxide ceramic body having a heating part and a supporting part and a heating resistor embedded in the heating part of the ceramic body. The material of the heating resistor is W, WC, tungsten alloy or a metal nitride such as TiN or TaN. According to the invention the heating part of the ceramic body is formed of aluminum nitride ceramic, which is high in heat conductivity and resistant to oxidation at high temperatures, at least in a core region in contact with the heating resistor, and the supporting part is formed of silicon nitride ceramic which is low in heat conductivity at least in a surface region.

Abstract: An improved PTC electric heating element assembly comprises a heating element of a ceramic material with positive temperature coefficient, two insulating elements with different thickness, and four metal sheets, which are arranged in a stack to firmly join together by a fastening means fixed on the bottom of a container. The opposite sides of the heating element are contacted by metal sheets having electrodes which are connected to electric wires to effectively conduct the heat produced to the container.

Abstract: In a thin film capacitor in which a lower electrode,a dielectric film and an upper electrode are formed in order on a substrate, both the lower and upper electrodes are respectively formed with a first conductive layer made of Ti, Ta, Mo and W and a second conductive layer made of Pt, Pd, Rh and Al in this order from the substrate. In addition, a conductive metal oxide film such as made of PdO and others is formed, as required, at least between the lower electrode and the dielectric film or between the upper electrode and the dielectric film.

Abstract: An laminated article heater terminal assembly and connector for electrically uniting a source of electricity with a conductive polymer film laminated between two nonconductive materials. The terminal assembly includes a conductive metal foil tab and a terminal body further including dimples and first and second foldable shoulders which act in unison to mechanically grasp the conductive metal foil tab. A plurality of terminal assemblies are then captivated in a connector.

Abstract: A thin film capacitor composed of a hybrid dielectric thin film that is sandwiched by a pair of electrodes. The hybrid dielectric thin film is obtained by complexing or accumulating first and second regions. The first region is derived from an ion plating source and the second region is derived from another ion plating source containing an auxiliary material to be coupled with the first region, both being obtained through an ion plating process. The use of the auxiliary material ensures a pinhole-free hybrid dielectric thin film.

Abstract: A mounting assembly is disclosed for a metallic honeycomb resistance heater structure wherein a pair of complementary ceramic honeycomb structures are utilized on opposite sides of the metallic honeycomb structure to not only mechanically support the same within an enclosing housing, but also to electrically insulate the resistance heater from such housing.

Abstract: The electric double layer capacitor is designed such that a pair of electrode plates each having a lead terminal portion are positioned on upper and lower faces of an electric double layer capacitor element, the resulting assembly is resin-molded with a heat-resistant resin while applying a desired pressure to the assembly through the upper and lower electrode plates and the lead terminal portions are formed into shapes having L-shaped sections. This structure makes it possible to easily provide chip type electric double layer capacitors capable of being surface-mounted.

Abstract: A method and apparatus to melt and withdraw petroleum residue from a storage site at a convenient location while causing the residue from more distant locations to melt and flow in a stream, to the removal location. A heated wand is utilized to heat the petroleum residue. The wand has one pivotally supported end and is moved in an arc about the pivotally supported end across the storage site with removal of heated petroleum residue occurring at substantially the center of the arc.

Abstract: A panel heating element, especially for thermal home appliances, with a laminar support element (1) for supporting all items to be heated and an electrically conductive heating layer (2) applied laminarly to support element (1), the heating layer (2) containing glass and being applied in a pasty state. The panel heating element makes possible a relatively high surface-specific heating power and relatively high heating temperatures and, moreover, is relatively inexpensive in that the heating layer (2) in pasty state consists of powdered molybdenum boride, of two different powdered types of glass and of an organic substance, and, in the preferred embodiment, an insulating layer (3) is provided between the support element (1) and the heating layer (2), and the heating layer (2) is provided with a protective layer (4) on a side that faces away from support element (1).

Abstract: A part molded from thermoplastic material is disclosed comprising welding bush portions each of which are provided with a heating coil for connection with tubularly-shaped parts. A clamping portion with slots and screws arranged in flanges facilitates the clamping of wherein the welding bush portion by the screws against the inserted tubularly-shaped part, assuring fixation and retention of the parts prior to and during the welding process.