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| Number | Title | Issue Date |
| 4792662 | Sheet electrical heating element A sheet electrical heating element comprising warp yarns which are constituted of a plurality of warp electrically conductive yarns disposed at predetermined intervals and a plurality of warp electrically non-conductive yarns, one or more of which are arr... | 12/20/1988 |
| 4785163 | Method for monitoring a heater Method for monitoring the electrical integrity of a heater and a novel heater for use in such a method. The heater includes an elongate heating member; an insulating jacket which encloses the heating member; a first electrically conductive member which su... | 11/15/1988 |
| 4713531 | Heating element for textiles A heating element for textiles is disclosed, which comprises a plane textile element and, combined with this, metal conductors, which can be connected to a source of electrical current and which oppose the electrical current flowing through them with a he... | 12/15/1987 |
| 4700054 | Electrical devices comprising fabrics An electrical heater which comprises a fabric prepared from at least one of the electrodes and another elongate element of substantially higher resistance. The heater preferably comprises a PTC element, e.g. of a conductive polymer, to render the heater s... | 10/13/1987 |
| 4630772 | Insulating plate for rail insulated joint An improved insulating plate for an insulated rail joint includes a main plate portion made of a thermo-plastic resin, thick portions formed on the main plate portion at its side face contacting a joint plate, and planar heater elements embedded in the th... | 12/23/1986 |
| 4581522 | Electrical heating system including a mesh heating element An electrical heating system for use in heating surfaces. A heating element is constructed of mesh screen comprised of small gauge wires which are spaced in a close mesh arrangement such that the total surface area of the wires is substantially equal to o... | 04/08/1986 |
| 4540878 | Net circuit type heating and warming equipment A heating cord comprises bendable electric heating wire and nonconductive fiber. A net type heater is formed from the heating cords. Common power source terminals comprising a plurality of bendable conductors are fixed at both sides of the net type heater... | 09/10/1985 |
| 4538054 | Electric heating fabric An electrical heating fabric has a warp composed of non-conductive threads, and selvedges which include plural lead wires. In the weft direction the fabric has both non-conductive threads and conductive wires. The different types of weft material are arra... | 08/27/1985 |
| 4533821 | Heating sheet A plurality of heating wires are arranged so as not to cross each other. Common power source terminals are connected to two end portions or at an intermediate portion of each heating wire. Each common power source terminal has a plurality of conductors wh... | 08/06/1985 |
| 4523086 | Flexible electrical thermal element A flexible heating element is suggested to be made on a continuous basis, so that desired length can be cut therefrom and includes individual, electrically insulated feeder lines and a heating being interlooped in interweaving fashion with the feeder line... | 06/11/1985 |
| 4439666 | Electrical heating system An electrical heating system for use in heating surfaces. A heating element is constructed of mesh screen comprised of nonferrous, small gauge metal wires which are spaced in a cloth mesh arrangement such that the total surface area of the wires is substa... | 03/27/1984 |
| 4385957 | Method for heating a webbing reinforced by carbon fibers A webbing reinforced by carbon fibers is heated during its resin impregnation by passing an electric current through the carbon fibers whereby the carbon fibers act directly as heating mats in a system of layers of fiber reinforced material. Thus, the use... | 05/31/1983 |
| 4375009 | Shielded electrical cable An electrical cable having a shielding comprised of knit or knit-graded wire having metal coatings.... | 02/22/1983 |
| 4354091 | Portable auxiliary warming room apparatus A warming room whose flexible, electric blanket-like wall or walls, floor and ceiling generate surface heat to provide uniform warmth in the area which they enclose. Portions of the warming room comprise one or more warming walls or barriers to increase t... | 10/12/1982 |
| 4352007 | Hot melt multi-section hose heating system A heating system is disclosed for a hot melt hose having multiple physically and thermally interchangeable series-connected heated hose sections wherein different hose sections exhibit different electrical power requirements per unit length. The multiple ... | 09/28/1982 |
| 4315137 | Thermostat range controller A thermostat range control device for maintaining a thermostat temperature that has a substantially constant difference with respect to room temperature, and which allows the thermostat to respond quickly and accurately to changes in room temperature. The... | 02/09/1982 |
| 4313777 | One-step dual purpose joining technique This fastener used in induction heating is a wire screen basically of an eddy-current carrying material such as carbon steel. Selected wires in the screen are copper, sheathed in an insulating material. The screen is placed between two sheets of thermopla... | 02/02/1982 |
| 4245149 | Heating system for chairs The invention relates to a heating element for a heated chair which can be used as a covering material for the heated chair or which can be laid under the covering material or which can be draped over an ordinary chair to convert it to a heated chair. In ... | 01/13/1981 |
| 4158104 | Curved woven cable and method A curved woven cable having a plurality of conductors and a method for constructing the same is disclosed wherein warp binder strands and a fill strand are interwoven with the conductors with at least one void area being formed in which the conductors are... | 06/12/1979 |
| 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 |
| 4065660 | Electrical appliance for heating feeding-bottles and like containers An electrical appliance for heating feeding-bottles, baby-food pots and containers of a similar type comprises a support and a heating element which is intended to come into contact with the container. The appliance further comprises a relatively flexible... | 12/27/1977 |
| 4063069 | Electrically heatable floor carpet An electrically heatable floor covering comprising a carpet of woven fibers, wherein an electrical heating element is enclosed in the carpet body, which is made of a straight thin copper wire having a reinforcing coating of polytetrafluoroethylene which c... | 12/13/1977 |
| 3946194 | Building comprising one or more rooms or confined spaces equipped with an electric heating installation, and/or an electric heating installation for this building, equipped with a heating device A building comprising a number of confined spaces, at least one of which being provided with an electric heating installation provided on, in or in front of at least part of the walls, floor, ceiling and/or windows, said electric heating installation cons... | 03/23/1976 |
| 3940592 | Electrically heated alignment pad A pad comprising at least one sheet of material having a thermoplastic resinous composition and a heater actuable to heat and soften the sheet, the pad being for use in alignment of machine equipment, rails, beams, girders, or other constructional element... | 02/24/1976 |
