High-voltage switches with arc preventing or extinguishing devices inventions 10/07

20070246444 - Contact system for an electrical switching device: The disclosure relates to an electrical contact system for a switching device having a mating contact and a second contact. According to the invention, the second contact has a contact tulip, at the outer face of which a current transfer takes place to an annular part of the mating contact.... Agent: Buchanan, Ingersoll & Rooney PC

20070241079 - High voltage circuit breaker with re-fill valve: A circuit breaker assembly includes a puffer chamber having a nozzle extending from an end, a vent located at or near the end of the puffer chamber, and a vent seal movably positioned over the vent. The vent seal prevents gas from escaping through the vent when the puffer chamber... Agent: Pepper Hamilton LLP

20070241080 - Vacuum switchgear assembly and system: Insulated vacuum switchgear and active switchgear elements therefor are provided with a composite overwrap for mechanically isolating a vacuum insulator from axial loads in use without reinforcing or insulating encapsulations. A dielectric buffer layer is provided to fill voids or discontinuities in the overwrap.... Agent: John S. Beulick Armstrong Teasdale LLP

20070241081 - Slot motor and circuit breaker including the same: A circuit breaker includes fixed and movable contacts, an operating mechanism including a movable arm carrying the movable contact, an arc chute including a plurality of spaced apart first and second arc plates, and a slot motor. A slot motor structure is disposed about the contacts and a portion of... Agent: Martin J. Moran, Esq. Eaton Electrical, Inc.

20070235415 - Vacuum switch chamber with a protective sleeve that is applied by heat shrinking: The invention relates to a vacuum interrupter chamber and a method for producing the same according to the preambles of patent claims 1 and 3. In order here to improve a vacuum interrupter chamber of this type and a method for producing the same and the subsequent casting to the... Agent: Michael M. Rickin Abb Inc.

20070228013 - Gas generating system with pressure regulator: A gas generating system is provided including a housing and a divider for dividing an interior of the housing into a first interior portion and a second interior portion. The divider defines a fluid flow path therethrough enabling fluid communication from the first interior portion to the second interior portion.... Agent: L.c. Begin & Associates, PLLC

20070228014 - Vacuum switchgear: A reliable, compact vacuum switchgear is provided at an inexpensive cost. The vacuum switchgear comprises a switch 1 having a fixed electrode 12 and a movable electrode 13 connectable to and disconnectable from the fixed electrode 12, another switch 2 having a fixed electrode 22 and a movable electrode 23... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.