High-voltage switches with arc preventing or extinguishing devices inventions 09/09

20090230090 - Vacuum switch: The present invention relates to a switch for initiating or interrupting current flow between two or more terminals. Preferably, the switch provides for two breaks in the circuit when the switch is in the open position, more specifically, by providing a gap between fixed and movable contacts within one or... Agent: Stroock & Stroock & Lavan LLP

20090223934 - Switching device: A switching device has an input terminal and an output terminal for connection to electrical conductors, and two switching contacts which, when closed, close a current path between the input terminal and the output terminal. A disconnect device is operatively connected to at least one of the input terminal and... Agent: Henry M Feiereisen, LLC Henry M Feiereisen

20090218318 - Vacuum switching chamber for medium-voltage switchgear assemblies: Vacuum switching chamber is disclosed for a medium-voltage switchgear assembly having one or more ceramic cylinder tube sections which are closed both on the fixed-contact side and on the switching-contact side by metallic covers. In order in the process to achieve a situation in which a vacuum switching chamber is... Agent: Buchanan, Ingersoll & Rooney PC

20090218319 - Vacuum circuit breaker: An object is to provide a vacuum circuit breaker that has a lower electrical and thermal resistance at contacting portions between a movable electrode-rod and a movable-electrode-side connection-terminal so that a continuous current-carrying capacity is made larger without reinforcement and/or enhancement of an operating mechanism. The vacuum circuit breaker herein... Agent: Buchanan, Ingersoll & Rooney PC