High-voltage switches with arc preventing or extinguishing devices inventions 08/07

20070187364 - Adaptive switch contamination compensation: In a method and system for compensating for contamination of a switch or of a load circuit connected to the switch in a switch circuit, on/off signal levels are obtained corresponding to on/off states of said switch based on a polling signal which turns said switch on and off. With... Agent: Schiff Hardin, LLP Patent Department

20070187365 - Switching device: The invention relates to a switching device with a switching structure (1), which includes a cage assembly (21) having two opposite first sidewalls (5) and a bottom wall (6) integrally connecting the first sidewalls. The cage assembly (21) is at least partly configured as a cage (24) in which a... Agent: Sughrue Mion, PLLC

20070181536 - Heavy-duty circuit breaker with movement reversal: The heavy-duty circuit breaker can be filled with a quenching gas and contains a first moveable arcing contact piece and a second moveable arcing contact piece as well as a drive for driving the first arcing contact piece and an auxiliary drive for driving the second arcing contact piece. An... Agent: Buchanan, Ingersoll & Rooney PC

20070175866 - Vacuum insulated switchgear: A vacuum insulated switchgear comprising a case having a switch section, a bus-bar section and a cable section, each being partitioned by an earthed metal plate, a vacuum double break three point switch disposed in the switch section and having breaking and disconnecting function, an operator, a bus-bar disposed in... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.