Class 218/61 - Compressing cylinder structure

Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter including structural details of a tubular
No. of patents: 24
Last issue date: 10/04/2011

Number	Title	Issue Date
8030590	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 pist...	10/04/2011
7022922	Power switch with a mobile contact element and extinction gas flow that move in an axial direction when activated The invention relates to a power switch (100) that comprises a contact element (105, 107) mobile in an axial direction and an extinction gas flow that moves in said axial direction when the switch is actuated. Said extinction gas flow is coaxially surr...	04/04/2006
6624371	Circuit-breaker including a channel for emptying the piston-driven compression chamber A circuit-breaker includes two contacts which are disposed in an interrupting space filled with a dielectric gas under pressure and between which an electric arc strikes during circuit-breaker opening, a thermal blast chamber communicating directly with t...	09/23/2003
6489581	Arc-blasting switch possessing a break chamber with low gas compression and reciprocating piston movement The arc blast switch can have single or dual contact movement and possesses a break chamber with low gas compression, the switch includes a first contact and a second contact, the first contact being movable in a longitudinal axis and being secured to the...	12/03/2002
5898149	Power circuit-breaker This power circuit-breaker has at least one cylindrically constructed arcing chamber which is provided with a stationary contact, with a moving contact and with a quenching zone between the two contacts. A shaft of the moving contact is permanently connec...	04/27/1999
5742016	Electrical gas-blast switch In a gas-blast switch with a compression device with a compression piston and a compression cylinder, at least one of which can be moved by the drive during the cut-off process, starting from a cut-in position, reducing a compression space delimited by th...	04/21/1998
5723840	Gas-dielectric high-tension interrupter of the arc-puffer type A gas-dielectric high-tension interrupter of the arc-puffer type in which the puff of gas is brought about by the combined effect of an excess pressure developed in a compression chamber and intensified by the heating caused by the arc radiation, which is...	03/03/1998
5600111	Circuit-breaker having low self-compression A circuit-breaker including two arcing contacts that co-operate with each other, at least one of which is part of a moving contact assembly that is secured to a drive member and that is constituted by a first tube carrying the moving arcing contact at its...	02/04/1997
5387773	Gas circuit breaker In a stationary contact unit of a gas circuit breaker, an arc-quenching cylinder for passing an arc-quenching insulation gas is formed in a substantially semicircular shape, and the stationary contact unit is supported by an insulation frame which is disp...	02/07/1995
5285036	Gas-driven power switch with power-assisted piston A gas-blast circuit-breaker having an actuated compression cylinder may include a reinforced actuation of the compression piston through the magnetic effect of the breaking current. A hollow-cylindrical body of ferromagnetic material concentrically surrou...	02/08/1994
4570202	Gas-insulated switchgear equipment A plurality of breaking portions forming a vertically-disposed circuit breaker are connected in series and open and close the circuit within a gas-tight sealed enclosure. The enclosure is provided at its both sides with openings for connection of one and ...	02/11/1986
4524257	High-voltage gas-blast puffer type circuit-breaker A gas-blast puffer type SF6 circuit-breaker exhibiting essentially features as follows: Dual-blast nozzle arrangement wherein a first nozzle being made of electrically conductive material, and a second nozzle being made of electrically insulati...	06/18/1985
4471188	Pneumatic puffer circuit breaker A pneumatic puffer circuit breaker for high tension stations comprises a sealed chamber filled with a highly dielectric gas, a fixed main contact (18, 39) and at least one fixed arcing contact (9, 14, 16) disposed as co-axial cylinders and deliminiting a ...	09/11/1984
4459447	Self extinguishing type gas circuit breaker A self extinguishing type gas circuit breaker includes a body member having a first end connected to a terminal plate and a second end with a nozzle formed of electrical insulation material and defining a nozzle opening in communication with the interior ...	07/10/1984
4440997	Puffer interrupter with arc energy assist A puffer interrupter with arc energy assist employs a cylinder which moves telescopically over a stationary piston. The cylinder carries a movable contact structure and an insulation nozzle and moves within an insulation chamber. The cylinder has an exten...	04/03/1984
4431887	Gas-blast switch A movable contact element is surrounded by a co-movable blast nozzle which in the cut-on position is closed by a stationary contact element which is in engagement with the movable contact element. At its inlet side the blast nozzle is flow connected with ...	02/14/1984
4412115	Circuit interrupter A puffer type circuit interrupter in which fingershaped arcing contacts are provided with a large cooling effect by gas which is provided to blow out the arc at the time of an interruption operation. One of a pair of arcing contacts, which are connected t...	10/25/1983
4381436	Rotary arc type circuit breaker Gas-blast circuit interrupter having a gas-blast aspiration device for interrupting small currents and a magnetic blowout device which causes rotation of the arc and/or a gas blasting device by the thermal expansion of the gas in the arc-extinguishing cha...	04/26/1983
4230920	Gas-blast switch Within a gas tight insulating housing of a gas-blast switch there are arranged a fixed contact surrounded by a blast chamber, a movable contact and a blast nozzle movable together with said movable contact. The blast nozzle is connected to a pump device c...	10/28/1980
4213022	Two-pressure type circuit interrupter A high-compression two-pressure type circuit interrupter characterized by cylinder means separated into two gas-tight compartments by a pressure responsive divider, one compartment containing an arc-extinguishing gas, the other compartment containing an o...	07/15/1980
4211904	Gas-blast circuit breaker A gas-blast circuit breaker having cooperating stationary and movable power contacts, a movably arranged cylinder, a stationary piston disposed in the cylinder and slidable with respect thereto, a compression chamber defined by an end face of the piston a...	07/08/1980
4205208	Double-flow compressed-gas operating mechanism for a high-voltage circuit-breaker An improved double-flow-type of compressed-gas operating mechanism is provided for actuating a high-voltage circuit-breaker including a double driving head, movable, actuating piston, having different opposite working areas to thereby accommodate the high...	05/27/1980
4105880	Arc blow-out switch An arc blow-out switch is formed of a plurality of extinguishing units arranged in tandem, each including a movable compression cylinder and a stationary compression piston arranged in the compression cylinder. Axially aligned insulating cylinders surroun...	08/08/1978
4000387	Puffer-type gas circuit-interrupter An improved puffer-type compressed-gas circuit-interrupter is provided having tubular stationary and movable contacts, which make a valve-closed, gas-retaining, abutting, contacting action for a predetermined portion of the opening travel of the interrupt...	12/28/1976

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Class 218/61 - Compressing cylinder structure