Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7999211 | Heating element structure with isothermal and localized output A microheater for heating at least one target area, the microheater comprising a substrate, a resistive material adjacent to the substrate and connector traces connected to the resistive material. The microheater is formed so that when a predetermined current flows ... | 08/16/2011 |
| 7439472 | Heating body A heating body is provided. The heating body includes a tube and a heating member disposed in the tube. When a radius from a center of the heating body to an outer circumference of the heating member is “r,” a radius of the tube is equal to or greater than 1.6r.... | 10/21/2008 |
| 7423242 | Oven for non-metal melting Oven for non-metal melting, in particular silicon melting, with a housing enclosing an interior, at least one mould arranged in the interior for receiving a non-metal melt, at least one electrical heating device enclosing, at least partially, the at least one mould ... | 09/09/2008 |
| 7378614 | Heat rod assembly and pre-heater for vehicles including the same A heat rod assembly for preheating internal air of a vehicle by using heat generated from a positive temperature coefficient (PCT) device and a pre-heater for vehicles including the same, in which components of the heat rod assembly and the pre-heater are grouped as... | 05/27/2008 |
| 7361869 | Method for the production of an electrically conductive resistive layer and heating and/or cooling device An electrically conductive resistive layer (26) is produced by thermally spraying an electrically conductive material (18) onto the surface of a non-conductive substrate (12). Initially, the material layer (14) arising therefrom has no de... | 04/22/2008 |
| 7323664 | Heating system A heating system includes a plurality of radiant heaters, a power source supplying electricity to the radiant heaters, and a transformer provided between the radiant heaters and the power source, wherein each of the radiant heaters includes a support plate substanti... | 01/29/2008 |
| 7288749 | Electrical heating device and method of its manufacture An electric heating device based on a ribbon of crystalline metal foil with high specific resistance, which is additionally treated to increase its plasticity and/or additionally coated with a mold release agent to enhance compatibility of the ribbon and insulating ... | 10/30/2007 |
| 7271369 | Multilayer positive temperature coefficient device and method of making the same An improved PTC device and method of manufacturing is disclosed. In one embodiment, the device and method incorporates an improved metal-ceramic composite PTC material manufactured by: (a) heating a ceramic material to a sufficiently high temperature to induce the c... | 09/18/2007 |
| 7230213 | Modular heated cover The modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection in an outdoor environment, an electrical heating element between the first and the second outer layers, the e... | 06/12/2007 |
| RE39660 | Surface mounted four terminal resistor An electrical resistor has a surface mounted four terminal current sensor of a very low resistance value and capable of handling short pulses of high power. It comprises a flat metal late, 1 to 50 mils thick, of an alloy of high electrical resistivity, to which are ... | 05/29/2007 |
| 7205510 | Heater for an automotive vehicle and method of forming same There is disclosed a heater for an automotive vehicle or other article of manufacture. The heater typically includes a first conductive medium and a second conductive medium disposed upon a carrier. In a preferred embodiment, the first conductive medium includes a f... | 04/17/2007 |
| 7183524 | Modular heated cover The modular heated cover is disclosed with a first pliable outer layer and a second pliable outer layer, wherein the outer layers provide durable protection in an outdoor environment, an electrical heating element between the first and the second outer layers, the e... | 02/27/2007 |
| 7142779 | Infrared sauna A portable compact sauna wherein a user's body is warmed to sweating primarily by direct absorption of infrared radiation. Broad infrared radiation emitters or sources are placed around the inside of a narrow cabinet so as to be in close proximity to various parts o... | 11/28/2006 |
| 7120353 | Infrared sauna A portable compact sauna wherein a user's body is warmed to sweating primarily by direct absorption of infrared radiation. Broad infrared radiation emitters or sources are placed around the inside of a narrow cabinet so as to be in close proximity to various parts o... | 10/10/2006 |
| 7088801 | Single telephone number access to multiple communications services A platform provides access to multiple telecommunications services via a single telephone number. These services may include, for example, voicemail services, facsimile messaging services, paging services, and outbound calling services. A guest caller may call the s... | 08/08/2006 |
| 7087868 | Heating device In order to create a heating device which can operate in different power stages, but only has to be contacted from one side, the invention provides a heating device with at least two plate-like ceramic heating elements, which are electrically contacted on opposite f... | 08/08/2006 |
| 7064303 | Tubular heater and method of manufacture A tubular heater that is manually bendable to fit into a channel comprises a heating element positioned in an insulative material such as magnesium oxide and encased in a continuous inner nickel tubular sheathing. An outer sheathing, in a preferred embodiment, compr... | 06/20/2006 |
| 7038169 | Electric heater for the coupling head of a central buffer coupling The invention relates to a heater for an electric central buffer coupling in which at least one heating element (3) is placed in a recess of the coupling head (1) and is covered toward the outside. To improve the transfer of heat from the heating eleme... | 05/02/2006 |
| 7015425 | Gas cylinder warmer with variable wattage self regulating heater A gas cylinder includes a cylindrically-shaped main wall having a liner, a facing and insulation located between the liner and the facing. First and second electric, self-regulating heating elements are positioned between the liner and the insulation. The liner is p... | 03/21/2006 |
| 7004747 | Molding die and molding method The transfer plate is energized and heated uniformly in the state in which the transfer plate heated through the electric resistance heating is separated slightly from the specular surface of the specular plate, then, immediately before the die is closed, the transf... | 02/28/2006 |
| 7003985 | Method and apparatus for removing polymeric coatings from optical fiber in a non-oxidizing environment In accordance with the invention, the polymeric coating is removed from a coated optical fiber by disposing the fiber within a non-oxidizing environment and applying sufficient heat to volatilize at least a portion of the polymeric coating. The result is that the co... | 02/28/2006 |
| 6959145 | Footwear snow melting device using heated air An apparatus melts snow off a person's footwear without the need for the wearer to take off the footwear. In particular, the apparatus is for melting ice and snow off the footwear, for example shoes, boots or sneakers, of the wearer by a directed and accurately diss... | 10/25/2005 |
| 6727468 | Flexible heating system having high transmissivity A liquid crystal display (LCD) includes an LCD panel providing a surface. A flexible heating system of the invention includes a substantially transparent flexible sheet substrate disposed adjacent the surface of the LCD panel and a substantially transparent resistiv... | 04/27/2004 |
| 6713725 | Image heating apparatus In the head-fixing apparatus of the film heating system in an image forming apparatus, a heat capacity is controlled to be as small as possible because the quick-start property is recognized to be more importance. Thus, heat conductivity in the longitudinal directio... | 03/30/2004 |
| 6660977 | Electrical heating plate structure The present invention is to provide an electrical heating plate structure, including an insulating plate, and an electrically conducting plate mounted on the insulating plate. The electrically conducting plate includes multiple heat emitting sections. Eac... | 12/09/2003 |
| 6474492 | Multiple hot zone igniters The present invention relates to ceramic igniter devices, and more particularly, to such devices that contain two or more segregated hot zone regions that are electrically connected such as in series or in parallel. These devices are suitably incorporated... | 11/05/2002 |
| 6476361 | Heater unit for tray A heater unit mounted on a tray utilizes a PTC heater 100 having a positive temperature coefficient (PTC), and a sheet heater 200 superposed thereto. The PTC heater 100 includes PTC members 150 buried within an insulating substrate 130, and on both sides ... | 11/05/2002 |
| 6414281 | Hot-toe multicell electric heater A multicell heater is shown with typically round outer tubing, containing a plurality of resistive heating elements having a common inner sheath. The inner sheath has a preferably non-circular cross-section and is given a hairpin bend to form a "U" shape.... | 07/02/2002 |
| 6323460 | Image heating apparatus in which first and second heating resistors are within a width of a nip through which a recording material passes An image heating apparatus includes (i) a heater having an elongated base member, first and second resistors extended on the base member in a longitudinal direction thereof, an electrical connecting portion, adjacent one end of the base member, for electr... | 11/27/2001 |
| 6084219 | Resistance heating device A flat resistance heating device with a heating layer including of a material having a positive resistance/temperature coefficient to which current or voltage can be applied via electrodes. In order to reduce the current uptake in the switch-on phase and ... | 07/04/2000 |
| 6041164 | Expansion and mounting apparatus for infrared radiant energy source Infrared wire element configurations allow for expansion during use in a thermoplastic welding environment. A mounting apparatus for the infrared wire expansion configuration provides support.... | 03/21/2000 |
| 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 |
| 5954979 | Heater fixture of an electrical smoking system A novel electrical smoking system and method of establishing resistance to draw upon a cigarette while smoking a cigarette in an electrical smoking system comprising the step of operatively interposing a frit between a source of ambient air and the cigare... | 09/21/1999 |
| 5932128 | Switching control system for heating panel with leakage current cancellation A heating panel has a substrate with a resistive heating material disposed thereon. The substrate can be metal with an insulating layer disposed between the substrate and the heating layer. Alternatively, the substrate can be glass ceramic. The heating la... | 08/03/1999 |
| 5920366 | Dynamic multi-contact display heater system A multi-contact LCD heater system which include several contacts disposed around the periphery of a resistive film deposited on a substrate in which each contact is dynamically controlled in response to input from various temperature sensors. The control ... | 07/06/1999 |
| 5882416 | Liquid delivery system, heater apparatus for liquid delivery system, and vaporizer A liquid delivery system for delivery of an initially liquid reagent in vaporized form to a chemical vapor deposition reactor arranged in vapor-receiving relationship to the liquid delivery system. The liquid delivery system includes: (a) an elongate vapo... | 03/16/1999 |
| 5880439 | Functionally stepped, resistive ceramic An electrically powered functionally graded ceramic composite heater and a functionally stepped ceramic composite heater useful for cigarette lighters. The electrical resistance heater includes discrete heating zones wherein each zone of the heater can be... | 03/09/1999 |
| 5831251 | Heater unit having increased dielectric strength A heater unit 1 has a plurality of flat heaters 11 adjacently arranged side by side and having common upper and lower surfaces. The thickness T of the heaters 11 is substantially uniform. Each heater 11 has an adjacent end surface 111 which faces toward a... | 11/03/1998 |
| 5818010 | Display assemblies A transparent LCD back-lit display has a transparent indium-tin oxide heater layer extending across the display and a resistive metal strip heater, supported in a frame of low thermal conductivity, extending around its edge. One temperature sensor is moun... | 10/06/1998 |
| 5811767 | Three wire, three-phase heating cable and system An electrical three-phase heating cable and system that produces a reduced magnetic field and which uses a cable containing three insulated copper wires, or equivalents, as heating elements. The wires are equidistantly spaced from each other, in triangula... | 09/22/1998 |
