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| Number | Title | Issue Date |
| 7566842 | Switching chamber and heavy-duty circuit breaker The switching chamber for a heavy-duty circuit breaker has a first arcing contact piece, a second arcing contact piece, a heating chamber, and an insulating nozzle. The first or second arcing contact piece can be moved by means of a drive. The heating chamber is use... | 07/28/2009 |
| 7507932 | Heavy-duty circuit breaker with movement reversal The heavy-duty circuit breaker contains a first moveable arcing contact piece and a second moveable arcing contact piece as well as an auxiliary drive for driving the second arcing contact piece. An arc may burn between the arcing contact pieces. The heavy-duty circ... | 03/24/2009 |
| 7368677 | Reverse bias hatchet reset spring A spring offset device is structured to extend between a circuit breaker frame assembly and a trip mechanism. The offset device includes an offset member disposed on a trip device banana link, a spring anchor disposed on the frame assembly, and a spring extending be... | 05/06/2008 |
| 7323652 | Gas insulated switchgear The gas insulated switchgear includes a rotary shaft which penetrates a pressure vessel is connected with a moving part which is housed in the pressure vessel by way of a lever, and is connected to the moving part, and brackets which support the rotary shaft and are... | 01/29/2008 |
| 7319203 | Circuit interrupter and operating mechanism therefor An operating mechanism is provided for a circuit interrupter, such as a battery disconnect apparatus, including a housing and a number of stationary electrical contacts enclosed by the housing. The operating mechanism includes a cam member having a profile with firs... | 01/15/2008 |
| 7115828 | Internally switched electric power interrupter An electric power interrupter with an internal contactor that is suitable for use as a line and load switch constructed from light weight materials including a fiberglass or composite insulator and aluminum flanges. The light weight design feature allows the power i... | 10/03/2006 |
| 7091439 | Isolator/circuit-breaker device for electric substations An electric device, in particular for medium or high voltage electric substations, able to perform the functions of circuit-breaking, isolating and earthing is described. The device comprises: a casing; at least one circuit-breaker; at least one line isolator having... | 08/15/2006 |
| 7053326 | Integrated type gas-insulated switching apparatus In an integrated type gas-insulated switching apparatus, a plurality of switching devices are provided. Each of switching devices includes a contact and an insulated container in which the contact is contained. The contact comprises electrodes adapted to be contacte... | 05/30/2006 |
| 6946613 | Gas-insulated switchgear A gas-insulated switchgear includes a tank filled with an electrically insulating gas, first and second conductors disposed within the tank, a disconnector for disconnecting the first conductor and the second conductor from each other, and a grounding switch for gro... | 09/20/2005 |
| 6831244 | Gas-insulated switch A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein a single shock absorber absorbs the shock in both the breaking action and the closing action of the moving contact. ... | 12/14/2004 |
| 6762387 | Gas-insulated switch A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein a single shock absorber absorbs the shock in both the breaking action and the closing action of the moving contact. ... | 07/13/2004 |
| 6727453 | Hybrid circuit breaker with a transmission The hybrid circuit breaker has at least two series-connected arcing chambers, which are operated by a commmon drive via a transmission (29) connected upstream from it. It is intended to be possible to assemble this transmission (29) easily in the inter... | 04/27/2004 |
| 6723939 | Isolation switch for electric power systems The movable conductors of a three-phase isolation switch are incorporated into the electrically insulative molded shaft, thereby mechanically supporting them and isolating them from the metal axle of the shaft. Movable contacts on the ends of each movable conductor ... | 04/20/2004 |
| 6717088 | Gas-insulated switch A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein a single shock absorber absorbs the shock in both the breaking action and the closing action of the moving contact. ... | 04/06/2004 |
| 6649853 | Combined type fluid pressure driving apparatus The present invention provides a switchgear, which can achieve miniaturization and simplification while securing high operation reliability, and excellent in assembly, operability and inspection, and further, has a compact size. A fluid pressure operating... | 11/18/2003 |
| 6545241 | Gas-insulated switchgear device A high- and medium-voltage gas-insulated switchgear device having a casing. The casing includes an interruption unit having at least one fixed contact and one moving contact that can couple with each other, and a first actuator that is operatively connect... | 04/08/2003 |
| 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 |
| 6429394 | Power breaker The power breaker is provided with at least one arcing chamber (2) which is filled with SF6 gas, is rotationally symmetrical, and extends along a longitudinal axis (3). The arcing chamber (2) has a power current path with a central contact pin ... | 08/06/2002 |
| 6410873 | High voltage circuit breaker, especially a gas-blast circuit breaker In a high-voltage power breaker having two mutually opposite switching contacts which, when connected are surrounded by an insulating material nozzle, coaxially with respect to which a shielding electrode is arranged, with a first switching contact, which... | 06/25/2002 |
| 6365863 | High voltage circuit-breaker with a counter-contact which can be actuated In a high voltage circuit breaker having a contact system comprising a contact driven by a switch mechanism and a counter-contact opposite the contact and driven by an auxiliary gear, the parallel current path leading over the auxiliary gear is interrupte... | 04/02/2002 |
| 6342685 | Double movement high voltage circuit breaker Each pole of the circuit-breaker includes a case (1) containing two fixed conductive tubes (3, 4) which are aligned around an area provided for the pole contacts and each of which is connected to a connecting terminal. A semi-moving assembly includes a pe... | 01/29/2002 |
| 6271494 | High voltage circuit breaker with two arcing contacts which can be actuated in an opposite direction A high-voltage circuit breaker is described having arcing contacts, which can be driven in opposite directions, as well as corner gears that are coupled, via a driving rod, with the driven insulating nozzle surrounding the arcing contacts, with the corner... | 08/07/2001 |
| 6064025 | Control means for electrical equipment, E.G. for a high-voltage circuit-breaker A controller for electrical equipment, in particular for a high-voltage circuit-breaker, the equipment being housed in a casing filled with a dielectric gas under pressure. An interrupting chamber within the casing extinguishes arcs produced by the main c... | 05/16/2000 |
| 6049050 | Medium or high voltage circuit breaker including a transmission belt looped around two wheels Within an envelope, the medium or high voltage circuit breaker includes first and second main contacts that are movable relative to each other along a common axis, first and second arcing contacts that are movable along the common axis, the first arcing c... | 04/11/2000 |
| 6018133 | Low-compression puffer circuit-breaker A circuit-breaker of the puffer type, comprising two arcing contacts, at least one of the arcing contacts being part of a moving contact assembly made up of a first tube co-operating with a second tube to define a blast chamber, and a compression chamber ... | 01/25/2000 |
| 6015960 | Compressed gas interrupter with a rack mechanism A compressed gas interrupter having a first contact piece having a hollow wear contact into which, during closure, there is inserted a rod-shaped wear contact provided on a second contact piece, an insulating nozzle on the same axis as the two contact pie... | 01/18/2000 |
| 6013888 | Generator circuit breaker having a single mechanical control mechanism A circuit breaker comprising a first permanent current contact and a first arcing contact that are fixed, a second permanent current contact and a second arcing contact that are movable in a longitudinal direction to be connected with or separated from th... | 01/11/2000 |
| 5959274 | Operating mechanism for high-voltage circuit-breakers Operating mechanism for actuating an operating rod (13) of a circuit-breaker including at least one interrupter chamber filled with a pressurized dielectric gas, said operating mechanism using a tripping spring (21) held charged when the circuit-breaker i... | 09/28/1999 |
| 5952635 | Generator circuit breaker The generator circuit breaker includes synchronization means for separating its main contacts before its arcing contacts are separated. It has a lever which is hinged at one of its ends to a fixed contact piece and which is constrained to move firstly wit... | 09/14/1999 |
| 5929409 | Power breaker This power breaker has at least one quenching chamber, which is filled with an insulating medium, is of cylindrical design, extends along a central axis (2) and has a power current path, having two stationary consumable contact arrangements (5, 6) which a... | 07/27/1999 |
| 5905242 | High voltage hybrid circuit-breaker A high voltage hybrid circuit-breaker has an arc circuit with a gas circuit-breaker connected in a series with a vacuum bulb. The housing is subdivided into a first compartment enclosed by an insulator for housing the primary contacts of the primary circu... | 05/18/1999 |
| 5841087 | Isolating switch The isolating switch (1) contains an isolating switch housing (2) and at least two switching points (18, 19, 20) which are arranged in the isolating switch housing (2), are of axially symmetrical design, and each have one fixed switching element (7, 8, 9)... | 11/24/1998 |
| 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 |
| 5814781 | Puffer type gas circuit breaker A puffer type gas-blast circuit breaker includes a guide section arranged at a coupler section between a shaft section of a puffer cylinder and a dielectric operating rod, for guiding both in the axis direction of a current interruption section and in the... | 09/29/1998 |
| 5814782 | Rower circuit-breaker having a closing resistor The power circuit-breaker is provided with at least one arcing chamber which extends along a central axis and has at least one power interruption point with at least one contact which is moved by a drive. A closing resistor is connected in series with the... | 09/29/1998 |
| 5705781 | Electrical gas-blast switch In a gas-blast switch with a compression device to produce a quenching gas blast, in order to make the magnetic effect of the break current available already at the beginning of the cut-off movement, a compression chamber and a piston-cylinder system form... | 01/06/1998 |
| 5604340 | Gas insulated switchgear insertion resistor and main contacts operating mechanism having time delay feature A gas circuit breaker having a resistance circuit breaking portion connected in parallel with a main circuit breaking portion includes a main circuit breaking portion actuating mechanism and a resistance circuit breaking portion actuating mechanism. The r... | 02/18/1997 |
| 5567923 | Puffer circuit-breaker having a pneumatically-locked semi-moving piston The present invention relates to a puffer-type circuit-breaker including two arcing contacts that cooperate with each other, at least one of which is part of a moving contact assembly constituted by a first tube and a second tube that is coaxial with the ... | 10/22/1996 |
| 5534673 | Electric high-voltage circuit breaker A high-voltage circuit breaker has a metallic housing. The contact member assembly is held by insulating supports, and has a fixed contact member and a movable contact member. The movable contact member is capable of being driven via an operating lever by... | 07/09/1996 |
| 5502290 | Switch mechanism A switching mechanism for use e.g. in a circuit breaker of an underground electric substation has a movable rod which causes opening and closing of an electrical contact and a hydraulic operating system. The hydraulic operating system uses a hydraulic flu... | 03/26/1996 |
