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| Number | Title | Issue Date |
| 6559403 | Three-position electrical switch having a switching element that is movable in axial translation The three-position, gas-insulated, metal-clad electrical switch inside a metal casing includes first and second break contacts, a fixed grounding contact, and a switching element that is movable in an axial direction to interconnect the break contacts. Th... | 05/06/2003 |
| 6483067 | Electrical power distribution switch An electrical power distribution switch includes an operating member that carries a first plurality of spaced switch contacts and a support arrangement for pivotally supporting the operating member. One of the ends of the operating member includes a circu... | 11/19/2002 |
| 6310311 | Integrated bushing component An integrated bushing component for use in conjunction with pad mounted high voltage three-phase switch gear located with an electrical cabinet. The integrated bushing component providing an electrically insulated conductive path through a dead front barr... | 10/30/2001 |
| 6236010 | Circuit interrupter including a penetrating electrical contact with grip and release structure A penetrating contact design that decreases the time needed to move the male and female contacts of a circuit interrupter from a closed circuit position to an open circuit position. The penetrating contact has a grip-enhancing member that can be located o... | 05/22/2001 |
| 6229109 | Power circuit breaker with rack-pinion operating mechanism for movable contact A contact pin is operationally connected through racks and pinions to a movable mating contact arrangement in such a way that it executes a movement counter thereto. Through two spokes through which the racks are guided, it bears a contact ring which surr... | 05/08/2001 |
| 6211478 | Switching arrangement and method for its production In a power switch, power-switch fingers of a rated-current switching arrangement, as well as contact fingers (25) of a tulip contact and a switching pin (14) of an arcing switch arrangement, or other parts, each comprise a base body (26, 28) which, at sec... | 04/03/2001 |
| 6207918 | Compressed gas power switch The invention relates to a compressed gas switch with two contact pieces, a contact element by-passing the contact pieces when in the on position, and two isolating distances connected to each other in series. The second contact piece opposing the first i... | 03/27/2001 |
| 6107590 | Circuit-breaker with an explosive charge ignited during opening operation Extending between a fixed tulip contact (1) and a slide tulip (4) is an arcing chamber (5) which is occupied in the closed position by a movable contact pin (3) which fills up both an exhaust (9) surrounded by the slide tulip (4) and a blowout opening (7)... | 08/22/2000 |
| 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 |
| 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 |
| 5977502 | Gas circuit breaker The gas circuit breaker has a configuration such that a stationary contact section and a movable contact section are arranged in an arc-extinguishing gas sealed container, to face each other, and the movable contact section includes a hollow operating rod... | 11/02/1999 |
| 5728988 | High-voltage power switch with a field electrode High-voltage power switch including a first and a second contact piece that form an air gap in the switched-off state, a compression piston that surrounds the first contact piece, a drivable compression cylinder that surrounds the second contact piece in ... | 03/17/1998 |
| 5610381 | Compression gas puffer type circuit breaker A compression gas puffer type circuit breaker has a magnetic body surrounding a conductor between a stationary arc contact and a main bus conductor. The magnetic body is protected from being exposed to heated puffer gas generated when a movable arc contac... | 03/11/1997 |
| 5563389 | High-voltage power switch High-voltage power switch with an arc contact and a spatially separated rated current contact, with the movable part of the rated current contact taking the form of an external hollow cylinder for delimiting a storage space for a pressurized quenching gas... | 10/08/1996 |
| 5514844 | Switch A switch for use in electric power includes a fixed contact, a moving contact performing a switching operation with respect to the fixed contact, a cylinder working with the moving contact, a piston slidably provided in the cylinder, a buffer chamber whic... | 05/07/1996 |
| 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 |
| 5105058 | Dielectric blast gas high voltage circuit breaker with electrical resistance conductor A high or medium tension circuit-breaker having a dielectric gas, the circuit-breaker including stationary and moving main contacts, and a conductor element having high electrical resistance, with the current to be interrupted being constrained to flow th... | 04/14/1992 |
| 5079391 | Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker A puffer type gas circuit breaker having at least one pair of a stationary contact and a movable contact capable of being separated from each other, a pressure producing section including a puffer cylinder and a puffer piston. The puffer cylinder is conne... | 01/07/1992 |
| 5001314 | High tension circuit-breaker having a dielectric gas under pressure A high tension circuit breaker having a dielectric gas under pressure, the circuit breaker being of the type including at least one interrupting chamber comprising an insulating shell filled with the gas and containing a fixed assembly including a fixed m... | 03/19/1991 |
| 4996399 | High or medium tension circuit breaker A circuit breaker for high and medium tension including insulation by means of a dielectric gas and puffer arc blasting, the circuit breaker comprising a gastight insulating casing, containing: a fixed assembly comprising, in particular, a fixed main contact a... | 02/26/1991 |
| 4996398 | Medium tension circuit breaking having high nominal current A dielectric blast gas circuit breaker comprising a main fixed contact, a main arcing contact, and moving equipment including, in particular, a moving arcing contact and blast means, wherein the circuit breaker includes a moving main contact which is disu... | 02/26/1991 |
| 4851622 | Puffer type gas-blast circuit breaker In a puffer type gas-blast circuit breaker, a fixed arc contact (1) which has a hollow (1a) therein, with at least one vent (1b) on an end part thereof, stores a high pressure insulation gas which is heated and expanded by an arc formed between the fixed ... | 07/25/1989 |
| 4736079 | Puffer type electrical circuit breaker having a high dielectric withstand The invention relates to improving the dielectric withstand of a puffer circuit breaker having a main circuit arranged side by side with an arcing circuit inside a sealed insulating casing filled with an insulating gas SF6. The disconnection area arranged... | 04/05/1988 |
| 4685019 | Controlled electrical contacts for electrical switchgear Most contacts that are used in electrical switchgear are prone to erosion due to electrical arcs that are developed at the make and break of a circuit. Arcing is one of the major problems that can cause catastrophic failure of switchgear. In accordance wi... | 08/04/1987 |
| 4665289 | Puffer type gas insulated circuit breaker A puffer type gas insulated circuit breaker has releasably engaging stationary and movable arc contacts contained in a vessel filled with an arc extinguishing gas. An operation rod serving as a supporting member of the movable arc contacts has openings an... | 05/12/1987 |
| 4628164 | Arc contact system for electrical circuit breakers, in particular of the type using an arc extinguishing fluid In an arc contact system for electrical circuit breakers, in particular of the type using an arc extinguishing fluid, comprising a stationary contact and a movable contact, one of the two arc contacts is formed by a tubular cylindrical body bearing a holl... | 12/09/1986 |
| 4577073 | Electrical circuit breaker with arc extinguishing compressed fluid The present invention relates to an electrical circuit breaker with arc extinguishing compressed fluid, in which the compression of the extinguishing fluid is caused in a mixed way, by the pneumatic action of a compressing piston solid with the movable co... | 03/18/1986 |
| 4514605 | Compressed gas circuit breaker The invention provides a compressed gas circuit breaker provided both with a blast device comprising a piston (12), a cylinder (3A) and a blast orifice (10B) for sending a jet of compressed gas to the zone where an electric arc forms when the arc contacts... | 04/30/1985 |
| 4511776 | Break chamber for a gas-blast circuit breaker A break chamber for a gas-blast circuit breaker comprising an insulating cylindrical housing (1) containing a fixed arcing contact (5), a fixed main contact (4), and a moving contact (6) passing through one end (3) of the housing. The housing is divided i... | 04/16/1985 |
| 4490594 | High voltage circuit breaker An electrode system for a high voltage circuit breaker is disclosed which comprises at least one nozzle-like electrode end in which the contour of the end face in cross section in the axial direction of the electrode end forms part of an ellipse. The elli... | 12/25/1984 |
| 4486632 | High-voltage power switch In a high-voltage power switch having a movable contact and at least one other contact, wherein the contacts define a quenching path in which an arc burns, a piston/cylinder compression device in which fresh quenching gas is condensed, and a heating volum... | 12/04/1984 |
| 4475017 | Autopneumatic compressed gas switch An autopneumatic compressed gas switch comprises a gas cylinder with a piston which is cooperable with the cylinder and with one of them being movable relative to the other with changes of gas pressure. The stationary tubular part having one wall with an ... | 10/02/1984 |
| 4475019 | Puffer-type compressed gas circuit interrupter According to this invention, therein is provided a puffer-type compressed gas circuit interrupter comprising stationary and movable contacts and a stationary cylinder, a movable piston, connected to the movable contacts and which slides in the stationary ... | 10/02/1984 |
| 4467158 | Puffer type gas circuit A puffer type gas circuit breaker comprises a stationary piston, a movable puffer cylinder into which the stationary piston is inserted, a ring-shaped movable arcing contact provided at the forward end of the movable puffer cylinder, a rod-shaped stationa... | 08/21/1984 |
| 4445019 | Compressed-gas switch A compressed-gas switch has a stationary and a movable switching part. At the movable switching part a nozzle of insulating material and an annular element consisting of insulating material are provided. The nozzle of insulating material and the annular e... | 04/24/1984 |
| 4442330 | Puffer type current interrupter A puffer type current interrupter employing a pair of symmetric electrodes with contact bosses provided on their confronting surfaces. An insulator nozzle is arranged such that the throat section for providing a jet of arc blasting gas is located in the p... | 04/10/1984 |
| 4439652 | Contact system for gas blast circuit breakers A contact system for a gas blast circuit breaker has a nozzle-shaped fixed first contact piece, a coaxially mounted nozzle-shaped axially movable second contact piece and a movable bridging element common to both contact pieces. Spring biasing serves to u... | 03/27/1984 |
| 4408108 | Puffer type gas interrupter A puffer type gas interrupter has an extra movable conducting cylinder mounted concentrically around and in fixed electrical contact with the puffer cylinder which functions to blow out the arcs produced at the moment of interruption. This conducting cyli... | 10/04/1983 |
| 4393290 | Puffer-type gas blast switch A puffer-type gas blast circuit interrupter composed of two separable contacts defining a power current path and between which an arc is created upon separation movement, in which the movable parts of the gas compressor and/or the region of contact betwee... | 07/12/1983 |
| 4390764 | Puffer-type gas blast switch In a puffer-type gas blast switch including a gas compression device composed of two components defining, respectively, a piston and a cylinder, one of the components being stationary and the other one of the components being movable for compressing a que... | 06/28/1983 |
