The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7375308 | Garment incorporating functional electrical circuit Disclosed is a breathable heater element for a garment or for the lining of a garment such as an outdoor jacket, e.g. a waterproof jacket. The heater element is formed from porous metallised fabric such a nickel plated woven polyester fabric by photochemical etching... | 05/20/2008 |
| 7368921 | Printed capacitive sensor The invention relates to a flexible, resilient capacitive sensor suitable for large-scale manufacturing. The sensor includes a dielectric, an electrically conductive detector and trace layer on the first side of the dielectric layer comprising a detector and trace, ... | 05/06/2008 |
| 7299964 | Method and apparatus to create electrical junctions for information routing in textile structures Disclosed are systems or apparatuses and methods for forming a junction between conductive fibers that are incorporated into a fabric. Briefly, one method includes the steps of removing insulation from two intersecting individually insulated conductive fibers to exp... | 11/27/2007 |
| 7301351 | Printed capacitive sensor The invention relates to a flexible, resilient capacitive sensor suitable for large-scale manufacturing. The sensor comprises a dielectric, an electrically conductive detector and trace layer on the first side of the dielectric layer comprising a detector and trace,... | 11/27/2007 |
| 7291815 | Composite ice protection heater and method of producing same The invention includes a composite ice protection heater for an aircraft. The composite heater includes at least one electrically insulating layer, and at least one electric heater element comprising an electrically conductive layer bonded to the insulating layer. T... | 11/06/2007 |
| 7276917 | Printed capacitive sensor The invention relates to a flexible, resilient capacitive sensor suitable for large-scale manufacturing. The sensor includes a dielectric, an electrically conductive detector and trace layer on the first side of the dielectric layer including a detector and trace, a... | 10/02/2007 |
| 7204015 | Electric heating cloth method A method for producing a uniformly heated electric heating cloth comprising the steps of forming heating threads by dissolving a thermoplastic polymer in an organic solvent, adding an industrial carbon which is produced from acetylene to form a first mixture, grindi... | 04/17/2007 |
| 7151062 | Thermal textile A textile made at least in part with conductive yarns for the purpose of generating heat from an electrical power source. The textile has conducting yarns, or “heaters”, with conductivity and spacing tailored to the electrical source to be used and the heat to b... | 12/19/2006 |
| 7145432 | Flexible switching devices An electronic resistor user interface comprises flexible conductive materials and a flexible variably resistive element capable of exhibiting a change in electrical resistance on mechanical deformation and is characterised by textile-form electrodes (10,12) a... | 12/05/2006 |
| 7115844 | Flexible electric circuit for heating comprising a metallised fabric A flexible electric circuit, for example an electric heater, comprises a metallised fabric (14) the metal of which is photochemically etched to form the circuit (16), the fabric preferably being porous. ... | 10/03/2006 |
| 7064302 | Electrical connection for a resistor element made of electrically-conductive fibers A connection endpiece placed on a resistor element provided with at least one layer of electrically-conductive fibers, the endpiece serving to connect a power supply wire electrically to the resistor element. The endpiece includes at least one metal plate having a t... | 06/20/2006 |
| 6967309 | Personal warming systems and apparatuses for use in hospitals and other settings, and associated methods of manufacture and use Personal warming systems and apparatuses for use in hospitals and other settings are disclosed herein. In one embodiment, a heating pad for warming a patient during a hospital procedure can include a heating element and a patient support portion. The heating element... | 11/22/2005 |
| 6584279 | Heater sealed with carbon wire heating element A heater sealed with carbon wire heating element has a carbon wire heating element sealed with a quartz glass member, the carbon wire being prepared by knitting carbon single fibers into a knitted cord of a braid, each wire having a crystal structure with... | 06/24/2003 |
| 6483087 | Thermoplastic laminate fabric heater and methods for making same The invention relates to a laminated fabric heater element, heater and a process for manufacturing the heater element and heater. The heater comprises an electrically conductive fabric layer attached to bus bars, is sandwiched between two thermoplastic fi... | 11/19/2002 |
| 6483086 | Deicing mats A deicing apparatus comprises an integral stack of layers inseparably joined in intimate mutual contact forming a flexible mat. The layers include a first layer to be placed into contact with a surface to be deiced or to be maintained clear of ice, having... | 11/19/2002 |
| 6452479 | Detector contructed from fabric A position sensor is arranged to detect the position of a mechanical interaction, such as the application of manual pressure. A first fabric layer has electrically conductive fibers machined therein to provide a first conductive outer layer allowing condu... | 09/17/2002 |
| 6300861 | Organic thermistor device and method of producing same An organic thermistor device has a pair of outer electrodes formed facing each other on end parts of a thermistor body made of an organic thermistor material. Metallic wires extend inside and through the thermistor body transversely to the direction in wh... | 10/09/2001 |
| 6259349 | Electrical component with a constriction in a PTC polymer element A description is given of a PTC polymer element (1) as part of an electrical component with a novel structure in which aperture angles () on both sides of constrictions (2) in the PTC polymer material are at least 100°. As a result, an improved re... | 07/10/2001 |
| 6181234 | Monolithic heat sinking resistor A monolithic resistor is provided with a central resistive metallic foil strip positioned between and attached to a pair of wings formed from an electrically conductive metallic foil. The wings include large surface areas to dissipate heat. A plurality of... | 01/30/2001 |
| 6049063 | Low voltage wire mesh heating element A method of heating a surface in which a wire mesh or netting heating element is spread evenly over or just under an area to be heated, and through which an electrical current is driven. The two ends of the heating element are connected to the secondary t... | 04/11/2000 |
| 6028296 | Regenerative heater of diesel engine particulate trap and diesel engine particulate trap using the same heater A meshed plate-like heater is disposed between multi-layer cylindrical filters without contacting with the filters to constitute a DPF. The heater has a form in which strip-like electric conduction paths are arranged and developed side by side horizontall... | 02/22/2000 |
| 5589811 | Power door safety sensing strip A power door safety sensing strip with a bracket strip for attachment to the face of a power operated garage door. The sensing strip includes a flexible insulating tubular member having a bell-like shaped cross section with a wide inner face. A flat insul... | 12/31/1996 |
| 5573687 | Fibrous electric cable road heater A road heater comprising (1) a linear heater which is comprised of a linear heating element and a flexible electrically insulating layer formed on the entire periphery of the linear heating element, and (2) an outer textile structure such as a braid which... | 11/12/1996 |
| 5394507 | Heated tube with a braided electric heater A heated tube with a electric heater comprising a braid structure of bare strands of resistance wire connected in an arrangement to form a number of resistance circuits in parallel in a zone formed between exposed core portions of an electrical feeder lin... | 02/28/1995 |
| 5245161 | Electric heater An electric heater comprises a braid construction of a plurality of strands having electric resistance, thereby the strands are heated due to a Joule heat when a current flows therethrough. The strands are braided with a core wire of tube or without cores... | 09/14/1993 |
| 5224973 | Filter cartridge for trap apparatus A filter cartridge with heating element separated from a support member by filter media wherein the heating element has rows of apertures alternately staggered to provide good hoop strength while allowing longitudinal thermal growth and contraction.... | 07/06/1993 |
| 4795998 | Sensor array A sensor array, usually a sensor matrix for sensing pressure, comprising a grid of conductors in a woven fabric, the row conductors crossing over the column conductors to form a matrix array of crossover points. The rows are separated from the columns by ... | 01/03/1989 |
| 4777326 | Woven cable with multiple lossy transmission lines A modification of a woven cable (wire and fabric woven together to form a flat ribbon cable) assembly, in which the signal wires of the transmission lines are replaced with solderable resistance wires, thereby providing an economical method of building mu... | 10/11/1988 |
| 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 |
| 4687911 | Electric furnace heater A generally cylindrical, self-supporting, unitary high-temperature electrical resistance heating element is disclosed. The heating element is composed of a wire grate formed from a plurality of electrically continuous and intersecting wire segments made o... | 08/18/1987 |
| 4682010 | In-line electric heater for an aerosol delivery system An in-line heater for an aerosol delivery system has an elongated tubular electrically insulated plastic body having first and second ends coaxially aligned along the major axis of the tubular body. The first and second ends contain an aerosol inlet and o... | 07/21/1987 |
| 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 |
| 4584461 | Planar heater for liquid crystal element A planar heater for a liquid crystal element includes a thin metal plate having a relatively high specific resistance such as stainless, nichrome, nickel-chrome iron alloy, etc. The thin metal plate is subjected to etching-working to form a mesh-like heat... | 04/22/1986 |
| 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 |
| 4575617 | Heat tracing tape and power control system A heat tracing tape which can be cut to required lengths has a heating element comprising at least two lengths of woven or braided resistance wire each in the form of a flat strip. The strips are encased in extruded silicone rubber whereby they are spaced... | 03/11/1986 |
| 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 |
| 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 |
| 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 |