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| Number | Title | Issue Date |
| 6740837 | Contact zone for a power breaker A contact zone (1) of a quenching chamber which is arranged rotationally symmetrical about a central axis (2) and is filled with an insulating medium, having at least two stationary consumable contacts which are in the form of contact rings (4, 15 | 05/25/2004 |
| 6100489 | Consumable switching arrangement In the switched-on position, under the influence of contact forces generated by elastic deflection or else by mechanical spreading, or spreading caused by the attraction of parallel currents or repulsion of antiparallel currents, of a switching pin (5) , ... | 08/08/2000 |
| 6100492 | Consumable switching arrangement A wreath of contact fingers (4) directed radially toward a switching axis (1) presses in the closed position against the circumferential surface of a contact pin (2) with consumable heads (5) fitted on the ends. At an angle of approximately 90°, the cont... | 08/08/2000 |
| 5821495 | Gas circuit breaker A gas circuit breaker includes a case body in which an insulating gas is enclosed, a stationary contact part accommodated in the case body and equipped with tulip type stationary contact members, and a movable contact part having a movable contact member.... | 10/13/1998 |
| 5616972 | Switching arrangement with switching contacts and an inductive load In the case of a circuit arrangement with switching contacts made from silver or a silver alloy for the purpose of switching an inductive load, for example a motor, in a direct-current circuit, the arcing time is adjusted as a function of the breaking cur... | 04/01/1997 |
| 5495084 | Slip-through mounting structure for circuit interrupter The movable contact of a puffer interrupter contains a movable conductive tubular sleeve which is electrically connected to and is slidably mounted within a hollow conductive adapter which is supported from the end of a bushing insulator. An insulation ro... | 02/27/1996 |
| 5483031 | Gas-insulated disconnector provided with structure for suppressing metal particles contamination A gas-insulated disconnector includes a movable contact disposed above a fixed contact within a housing filled with an insulating gas. The movable contact is electrically coupled to an upper support member through a finger-type sliding contact 3 which is ... | 01/09/1996 |
| 5453591 | Sensing structure for component wear in high voltage circuit interrupters A vaporizable material, for example, a silicone, that is buried beneath the surface of a Teflon nozzle for a sulfur hexafluoride power circuit breaker in an area of the nozzle which is exposed to abrasion and wear due to arc products. In a similar manner,... | 09/26/1995 |
| 5077453 | Arc-extinguisher of a switch An insulative tube (93) of a switch is molded with an inserted tubular condutor (15), and a sliding contact (14) provided on outer surface of a piston (7) slides on an inner surface of the tubular conductor (15); the insulative tube (3) is thereby reinfor... | 12/31/1991 |
| 4900882 | Rotating arc and expansion circuit breaker A circuit breaker with expansion and rotating arc in sulphur hexafluoride comprising a metal breaking chamber supporting a stationary main contact capable of cooperating with a movable main contact. The breaking chamber comprises an insulating end plate a... | 02/13/1990 |
| 4755719 | Spark gap switch with jet pump driven gas flow A spark gap switch is disclosed with a pumping system which utilizes flowing gas to replenish the interelectrode region between conductive pulses. The spark gap switch typically consists of a housing enclosing a gas filled chamber in which there are two e... | 07/05/1988 |
| 4748303 | Isolating switch of a high voltage metalclad installation An isolating switch of a metalclad installation having an earthed metal enclosure is filled with a high dielectric strength gas. The isolation gap "d" separating the stationary contact from the movable sliding pin is surrounded by an annular electrode fit... | 05/31/1988 |
| 4747015 | Gas insulated switching apparatus In a gas insulated switching apparatus, a pair of buses are made up of coaxially disposed conductors or the like and disconnectors are connected to one of the buses. The buses and the disconnectors are integrally configured in one gas section of a gas tub... | 05/24/1988 |
| 4677265 | Gas-blast circuit breaker The gas-blast circuit breaker preferably provided for switching medium voltage has a housing (1) filled with insulating gas. In this housing (1), two contact members (7, 8) are arranged which can be moved relative to each other along an axis (6), and a fi... | 06/30/1987 |
| 4532499 | Means for detecting the contact wear of electrical switching devices In a means for detecting the wear of a current interrupting contact (4) there is used a light conductor (12) as a connecting link between the contact (4) and a detector (20) arranged at ground potential. The light conductor is inserted into an aperture (1... | 07/30/1985 |
| 4086461 | High-voltage circuit-interrupters A high-voltage circuit-interrupter has a contact arrangement operating in compressed gas contained in a sealed vessel. The contact arrangement comprises a pair of spaced aligned tubular fixed contacts respectively connected to the terminals of the interru... | 04/25/1978 |
