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

20080169271 - Arc-extinguishing composition and articles manufactured therefrom: An arc-interrupting compound, such as melamine, and to a method of extinguishing an arc by disposing the composition along the path of the arc, for contacting the arc. In one embodiment, the binder, or at least a portion of the binder, is a polymer that contains a functional group that... Agent: Marshall, Gerstein & Borun LLP (s & C)

20080156775 - Circuit breaker and opening and closing method thereof: A circuit breaker comprising a vacuum valve; an electromagnet including a first coil for driving an operating shaft of the vacuum valve toward an opening direction by electromagnetic repulsion, a movable core and a permanent magnet; and an operating mechanism which excites the first coil to close the vacuum valve,... Agent: Mattingly, Stanger, Malur & Brundidge, P.c.