High-voltage switches with arc preventing or extinguishing devices inventions 12/08

20080314873 - Switching chamber for a high-voltage switch having a heating volume for holding quenching gas produced by switching arcs: A switching chamber is intended for a gas-insulated high-voltage switch and contains a contact arrangement with two arcing contacts, which move relative to one another along an axis, with an insulating nozzle, an insulating auxiliary nozzle, a heating volume and a heating channel. The heating channel is routed partially axially... Agent: Buchanan, Ingersoll & Rooney PC

20080314874 - Vacuum interrupter: A vacuum interrupter has a tubular insulating body and a contact system with a moving contact and a fixed contact each connected to power supply bolts, which are passed out of the vacuum interrupter in a vacuum-tight manner. A control electrode is DC-connected to the fixed-contact power supply bolt. A... Agent: Lerner Greenberg Stemer LLP

20080308531 - Vacuum insulated switchgear: A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three positions, the switchgear being a double-break three-position type switch having breaking and disconnecting functions.... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080308532 - Vacuum insulated switchgear: A vacuum insulated switchgear comprising a vacuum container accommodating at least a pair of movable contacts and a pair of fixed contacts, wherein the movable contacts are capable of taking three positions, the switchgear being a double-break three-position type switch having breaking and disconnecting functions.... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080302763 - Vacuum fault interrupter: Exemplary vacuum fault interrupters are described.... Agent: King & Spalding LLP

20080302764 - Contact backing for a vacuum interrupter: Exemplary contact backings for vacuum interrupters are described.... Agent: King & Spalding LLP

20080302765 - Vacuum-insulated switching device: A vacuum-insulated switching device contains a grounded vacuum vessel, a contact system having a fixed contact and a moving contact, electrical connecting lines coupled to the fixed contact and the moving contact, and vacuum-tight bushings supported by the grounded vacuum vessel, and provide insulation from the grounded vacuum vessel. The... Agent: Lerner Greenberg Stemer LLP

20080296264 - Electrical service switching device with an arc blowout device: The disclosure relates to an electrical service switching device, in particular a circuit breaker, motor circuit breaker or the like, having a housing which has two housing halves and connecting means for electrical connection to busbars and/or power lines, having at least one electrical switching contact on which an arc... Agent: Buchanan, Ingersoll & Rooney PC