High-voltage switches with arc preventing or extinguishing devices inventions 12/07

20070295691 - Vacuum recloser: A vacuum recloser including a first connection section adapted to connect to a first electrical conductor; a second connection section mechanically connected to the first connection section; and an arm connected between the first and second connection sections. The second connection section is adapted to connect to a second electrical... Agent: Harrington & Smith, PC

20070295692 - Fault tolerant high voltage switching elements and electrical components: Liquid-filled high voltage switching units and electrical components including a primary tank and a secondary tank that do not communicate with one another in normal operation.... Agent: King & Spalding LLP

20070295693 - Nozzle fastening for electrical switching apparatus: An electrical switching apparatus is disclosed with a moveable insulating nozzle for blowing an arc. According to the invention, the insulating nozzle is connected in an interlocking and force-fitting manner to at least one moveable component part of the switching apparatus by means of a clamping device and without a... Agent: Buchanan, Ingersoll & Rooney PC

20070295694 - Electrical device containing insulating gas under pressure and including a composite insulator provided with a window for observing contacts: The gas-tight, high or medium voltage electric switch device (1), containing an insulating gas under pressure, comprises switch contacts (2) capable of occupying an open position and a closed position and disposed inside a composite insulator formed by a rigid tube (3) surrounded by an elastomer casing (4) whose outside... Agent: Robert E. Krebs Thelen Reid & Priest

20070289948 - Circuit breaker: The circuit breaker according to the present invention has first and second terminals having favorable electric conductivity and joined to each other with solder; and a heater whose circumference is insulated installed for melting the solder and supplied with electric power from the current path separate from current paths passing... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20070278186 - Nozzle for a gas-insulated switching device and related switching device: A nozzle for a medium or high voltage gas switching device of the type having at least a couple of separable arc contacts (1, 2), comprising a hollow shaped body (100) suitable to be positioned inside the device around the zone (20) where electric arcs form between said arc contacts... Agent: Abb Inc. Legal Department-4u6

20070278188 - Connector system for an insulated switch with provision for grounding and visible break: A connector system for a high voltage vacuum switch which includes: a voltage source connector; a load connector; a first contact in a vacuum bottle; and a second contact connected in series with the first contact, wherein the second contact is external to the vacuum bottle. The voltage source is... Agent: Hoffman & Baron, LLP

20070278187 - Visible open indicator: A visible open indicator for high voltage vacuum interrupters and switches, which use a vacuum bottle having a high voltage contact and an actuating element that opens and closes the contact, is provided. The visible open indicator includes: an actuating mechanism that operates the actuating element; a housing that contains... Agent: Hoffman & Baron, LLP