High-voltage switches with arc preventing or extinguishing devices inventions 03/07

20070068903 - Gas circuit-breaker: In an interrupter of a gas circuit breaker that uses springs as a driving source, a contact having a fixed contact and movable contact is opened and closed so as to turn on and off electric power. An operation unit generates driving force for driving the movable contact. A link... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070068904 - High-voltage circuit breaker with improved circuit breaker rating: An electrical breaker device, in particular a high-voltage circuit breaker, and a method for improved quenching gas cooling are disclosed. Cold gas is stored intermediately in the exhaust region, and a first partial gas flow is guided to bypass the intermediately stored cold gas and to flow off into the... Agent: Buchanan, Ingersoll & Rooney PC

20070062911 - Method and device for supplying at least one machining station for a workpiece: The invention relates to a method and a device for supplying at least one vacuum machining station. A first part of a supply device is arranged on a rotatable carrier element and is guided in such a way that it can be displaced in relation to a fixed second part... Agent: Friedrich Kueffner

20070062912 - Switchgear device comprising an arc chute of reduced size: Electric switchgear device comprising at least one electric pole-unit comprising a stationary contact part made of conducting material, a movable contact part and an arc chute. The arc chute comprises two side parallel flanges, a rear wall, and a bottom arcing horn made of conducting material, electrically connected to the... Agent: Steptoe & Johnson LLP

20070056931 - Replaceable arc splitter cassette for a circuit breaker and circuit breaker having a replaceable arc splitter cassette: An apparatus is disclosed which allows for simple fitting and removal of the arc splitter plates of an arc-quenching chamber. A replaceable arc splitter cassette is proposed for a circuit breaker having a quenching chamber cover and an arc splitter stack. The arc splitter cassette further includes at least one... Agent: Harness, Dickey & Pierce, P.L.C

20070045235 - Electric switching device comprising an arc-quenching unit: An electric switching device, designed to carry a low-voltage, in particular a circuit-breaker or contactor, having at least one arc-quenching unit (16; 18) is provided. Connection contacts (8) are mounted in a housing (2) that can be sealed by a cover (4) and switching chambers (10) are configured in the... Agent: Davidson, Davidson & Kappel, LLC