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| Number | Title | Issue Date |
| 7332694 | Heating resistances and heaters A heating resistance 1 comprises a shaped body of a band made of a conductive material obtained by bending the band in a shape of a wave. The heating resistance 1 is fixed to a substrate made of an insulating material to obtain a heater. Alternatively,... | 02/19/2008 |
| 7110499 | High-voltage supply for an X-ray device The disclosed, embodiments relate to a high-voltage supply (11, 13, 23) for an X-ray device. The X-ray device comprises an X-ray tube (15) and a high voltage generator(1), for generation of the high voltage necessary for operating the X-ray tube... | 09/19/2006 |
| 6452477 | High voltage low inductance circuit protection resistor A high voltage low inductance resistor (120) includes a resistor body (122) having a perimeter and a center. A first terminal (126) is located away from the center of the resistor near the perimeter of the body (122). A serpentine resistance element (130)... | 09/17/2002 |
| 5408379 | Device for opening a circuit and device for protecting the circuit against surges An insulating substrate has a heat generating resistor and an electrical conductor on its surface. A pair of conductors, such as power or communication leads, are connected to a protected circuit. A rated voltage element and the heat generating resistor i... | 04/18/1995 |
| 5229743 | High voltage protection resistor A protection arrangement for a high voltage tube includes a low inductance disk resistor connected in series with the anode of the tube. When an electrical discharge occurs within the tube, the increased anode current flows through the resistor which abso... | 07/20/1993 |
| 5218334 | Surface mountable high current resistor A surface mountable, high current resistor (20) is formed generally in the shape of an inverted "U". The top portion (22) of the inverted "U" is flat and contains one or more openings (26, 27) that serve to alter the resistivity of the resistor. The openi... | 06/08/1993 |
| 5204799 | Protective arrangement for telecommunications line interface circuit A circuit protection device designed to protect a pair of electrical circuits by fracturing at such time as an overcurrent condition has occurred in a first of the circuits, this novel device comprising a substantially flat substrate of non-conductive, fr... | 04/20/1993 |
| 5053743 | High voltage spiral resistor A resistor constituted by a spiral region (4) of a second conductivity type and having a determined doping level, formed on a first surface of a semiconductor substrate (1) of the first conductivity type, having a first terminal on the first surface of th... | 10/01/1991 |
| 4792840 | Resistor integrated on a semiconductor substrate The invention provides a resistor integrated on a semiconductor substrate and capable of withstanding high voltages. The integrated resistor is formed by a well of the opposite conductivity type relative to that of the substrate and is in the form of a ri... | 12/20/1988 |
| 4789773 | Electrical radiant heater for heating heating surfaces An electric radiant heater (11) for heating a glass ceramic cooking surface (12) contains a dish-shaped insulator (14), to whose inner bottom surface (18) are fixed heater coils (20). The heater coils have an oval cross-section and are pressed by their na... | 12/06/1988 |
| 4412125 | Heat-shrinkable cover An electrical heating element material of a sheet form is provided, which is comprised of a web of a synthetic resin having a plurality of metal conductor wires arranged therein in parallel to one another along the longitudinal direction of the web. The w... | 10/25/1983 |
| 4370548 | Electrical heating element An electrical heating element material of a sheet form is provided, which is comprised of a web of a synthetic resin having a plurality of metal conductor wires arranged therein in parallel to one another along the longitudinal direction of the web. The w... | 01/25/1983 |
| 4220846 | Method and apparatus utilizing a porous vitreous carbon body particularly for fluid heating A body of a specially prepared, porous vitreous carbon which does not crack or substantially change in electrical resistance with time when heated to elevated temperatures in air and which is used in a method or apparatus to heat a fluid stream flowing in... | 09/02/1980 |
| 4160897 | Ceramic heating element with restivity adjusted to a certain value In a ceramic heating element comprising a ceramic substrate having on a surface thereof a resistor pattern of an electrically conductive material and a ceramic electrically insulating layer disposed on the surface of the ceramic substrate with the resisto... | 07/10/1979 |
| 4048472 | Vibratory spiral conveyor chute and a resistance heating element Heating for a vibratory spiral conveyor used to react powdery and gaseous substances is accomplished by an expanded metal resistance heater element positioned between adjacent turns of the conveyor.... | 09/13/1977 |
| 3955169 | High power resistor A thick film spiral shaped resistor deposited on an alumina substrate and bonded to a Kovar plate, an aluminum heat sink is coated on one side with a silicon grease and the Kovar plate is bolted thereto.... | 05/04/1976 |
