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

20080203061 - Gas-circuit breaker: A gas-circuit breaker includes a cylinder, a stationary piston, and a moving piston. The cylinder has a moving contact that is fixed on one end of a rod and has a gas exhaust that faces a stationary contact. The rod is inserted into the cylinder. The stationary piston is fixed... Agent: Buchanan, Ingersoll & Rooney PC

20080203062 - Switchgear: A switchgear having interrupters wherein at least two moving contacts are capable of being open and close with respect to respective fixed contacts. The switchgear comprises a non-earthed metal vacuum chamber enclosing the interrupters therein, a connection conductor for connecting the moving contacts, an operating rod connected to the connecting... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20080203063 - Vacuum interrupter chamber: The disclosure relates to a vacuum interrupter chamber having an insulating ceramic wall, within which contact pieces which move in a vacuum are arranged and are surrounded by a screen between the contact piece and the interrupter chamber wall. In order in this case to improve on the one hand... Agent: Buchanan, Ingersoll & Rooney PC

20080197113 - Electromechanical circuit breaker and method of breaking the current in said electromechanical circuit breaker: The electromechanical circuit breaker is intended to establish and break the current in a main circuit (3, 4) and comprises a fixed contact element (5) and a moving contact element (6) which in a first position are in electrical contact with each other for carrying the current of the main... Agent: Young & Thompson

20080197114 - Contact arrangement for a vacuum switch: A contact configuration for a vacuum switch includes cup-shaped contacts, which are movable one after another in a longitudinal direction and provided with slots for producing a radial magnetic field. A contact carrier whose side wall is provided with a front surface faces the opposite contact and a bottom section.... Agent: Lerner Greenberg Stemer LLP

20080190895 - Switchgear: A multi circuit type vacuum switchgear with improved ground isolation reliability. The multi circuit type vacuum switchgear has plural main circuit switches in a chamber. The respective main circuit switches, each having a fixed electrode and a movable electrode open/close to the fixed electrode, are respectively accommodated in a non-earthed... Agent: Mattingly, Stanger, Malur & Brundidge, P.c.