| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 218118000 |
Vacuum
| 185 |
| 218043000 |
Air-current blowout
| 92 |
| 218155000 |
Housing structure
| 61 |
| 218022000 |
Magnetic blowout
| 61 |
| 218149000 |
Arc chute assembly
| 45 |
| 218154000 |
Operating mechanism structure or arrangement
| 40 |
| 218146000 |
Contact structure
| 29 |
| 218002000 |
Multiple break
| 24 |
| 218089000 |
Interposed non-conductor
| 22 |
| 218143000 |
Resistance inserting
| 18 |
| 218008000 |
Auxiliary shunt
| 17 |
| 218148000 |
Arc runner (e.g., arc horn)
| 15 |
| 218145000 |
With capacitor | 5 |
| 20090127230 | SWITCHING DEVICE FOR DIRECT-CURRENT APPLICATIONS - A switching device for direct-current applications including a housing, and at least three current paths. Each current path includes a respective movable switching contact element, a respective stationary switching contact element, and a respective air break between the respective movable and stationary contact elements. Each movable switching contact element is movable into a closed position and into an open position. The switching device includes a quenching capacitor connected in parallel to the respective at least one air break of a first of the current paths and configured to at least one of prevent the formation of an arc and quench an arc formed therealong. The quenching capacitor is not coupled to a second of the current paths. The second current path is couplable in series to the first current path. | 05-21-2009 |
| 20120125894 | ARC EXTINGUISHING SWITCH AND SWITCHING METHOD THEREOF - The present invention discloses an arc extinguishing switch, including a mechanical switch and a first electric branch connected in parallel with a first contact branch of the mechanical switch, the first electric branch includes a first controllable unidirectional turn-on subbranch and a second controllable unidirectional turn-on subbranch, the first controllable unidirectional turn-on subbranch and the second controllable unidirectional turn-on subbranch are respectively controlled by two thyristors to be turned on in AC positive and negative periods correspondingly and share a first capacitor connected in series with the two thyristors. The invention further discloses a switching method using the arc extinguishing switch. In the invention, the high power requirement for the thyristor in the arc extinguishing switch and the product cost are lowered, and it is avoided that the mechanical switch is bypassed when the short-circuit failure occurs on the thyristor. | 05-24-2012 |
| 20130153540 | METHOD OF EXTINGUISHING AN ELECTRIC ARC IN A LOW OR HIGH VOLTAGE SWITCHGEAR BY PULSE DISCHARGE - The present invention relates to a method of extinguishing an electric arc, which occurs in low or high voltage switchgears, by pulse discharge. The electric arc is cut like a “fuse” by connecting a condenser ( | 06-20-2013 |
| 20140299579 | DC VOLTAGE CIRCUIT BREAKER - A DC voltage circuit breaker includes at least one interrupter and a commutator device connected in parallel with the interrupter. The commutator device includes a capacitor circuit. The capacitor circuit includes a parallel circuit having at least two capacitor branches and the capacitor branches each have a capacitor in series with a capacitor branch switch. | 10-09-2014 |
| 20160035509 | CIRCUIT BREAKING ARRANGEMENT - A circuit breaking arrangement is disclosed, which is adapted to be coupled to a transmission line arranged to carry direct current for controllably effecting discontinuation of flow of direct current in the transmission line. The circuit breaking arrangement includes a current interrupter unit adapted to, when actuated, interrupt current in the transmission line and a first resonance circuit and at least a second resonance circuit. Each of the first and the at least a second resonance circuit is adapted to, upon actuation of the current interrupter unit and when the respective resonance circuit is activated, generate a resonance current superposing current of any arc generated in the current interrupter unit after actuation thereof. At least during a predefined period immediately after actuation of the current interrupter unit a resonance current that has been generated by the first resonance circuit flows into the current interrupter unit from a different direction than a resonance current generated by the second resonance circuit would have, or vice versa. | 02-04-2016 |
| 218152000 |
Polyphase | 4 |
| 20140054271 | CROWBAR DISCONNECT SWITCH - A three-phase disconnect switch for a power distribution system that supplies three-phase power from a source through a main circuit breaker to multiple three-phase feeder circuits, includes three pairs of contacts adapted for connection to the three phase lines of a selected one of the feeder circuits for opening and closing each of the phase lines, and a movable actuator associated with the three pairs of contacts and responsive to a signal indicating the occurrence of an arcing fault in the selected feeder circuit for initially creating a short circuit across the three phase lines of the feeder circuit and then opening the contacts. | 02-27-2014 |
| 20150129554 | CIRCUIT BREAKER OPERATING SYSTEM - An operating system for a circuit breaker includes a bail and a base that supports the circuit breaker and the bail. The bail extends around the circuit breaker and is pivotally attached to the base, such as by snap engagement. The bail and the base are made of an insulative plastic material such that the circuit breaker may vent hot gases, charged particles, plasma and the like without transferring charge to the operating system components. Additional features may be molded into the parts, such as supports and operators for auxiliary switches. | 05-14-2015 |
| 20150129552 | CIRCUIT BREAKER POSITION ADJUSTMENT SYSTEM - A system for adjusting the position of a circuit breaker is provided. The system allows for translation of the circuit breaker with respect to a support base and interfacing mechanisms, such as those that serve to switch the circuit breaker between its operative states. Adjustment is afforded by an adjustment plate fitted to the support base and that moves with the circuit breaker. Slots through the support base allow for movement of the plate and circuit breaker. A threaded member allows for continuous movement of the plate and circuit breaker for accurate positioning. | 05-14-2015 |
| 20150129553 | MOLDED CASE CIRCUIT BREAKER - Disclosed is a molded case circuit breaker. The molded case circuit breaker includes include: a case; an interrupter assembly installed in the case, and provided with an arc gas outlet; an exhaustion guiding portion disposed between the interrupter assembly and the terminal portion; an exhaustion cover mounted to the case, with a structure to cover the exhaustion guiding portion; and exhaustion guides spaced from each other in the exhaustion guiding portion, in a direction perpendicular to an arc gas discharge direction, in a state where the gas divergence portion is disposed therebetween, the exhaustion guides forming the arc gas passage together with the gas divergence portion. Under such configuration, arc gas discharged out of the arc gas outlet can be rapidly discharged to outside through the exhaustion guides, without an eddy current. | 05-14-2015 |
| Entries |
| Document | Title | Date |
|---|
| 20090261069 | GAS-INSULATED SWITCHING APPARATUS - [Object] A compact gas-insulated switching apparatus in which the space for arranging a gas breaker module may be reduced, and the space for arranging a circuit wiring may be reduced in the vertical direction is proposed. | 10-22-2009 |
| 20090283500 | ARC EXTINGUISHING RESIN PROCESSED ARTICLE AND CIRCUIT BREAKER USING THE SAME - An arc extinguishing resin processed article having excellent flame retardancy is disclosed, in which the contribution to rise in inner pressure is small, a pyrolysis gas that can efficiently extinguish an arc generated upon the interruption of a circuit can be generated, and heat resistance withstanding the rise in temperature generated in such a case and pressure resistance withstanding the rise in inner pressure are provided, and a circuit breaker using the arc extinguishing resin processed article are disclosed. The arc extinguishing resin processed article comprises a resin composition comprising (A) a polyolefin resin containing a hydroxyl group in an amount of from 0.2 to 0.7 mol per mol of a methylene group, a part of hydrogen atoms in a methylene chain being substituted with a hydroxyl group, (B) microcapsules containing water as a core material, and (C) a reactive organophosphorus flame retardant having a terminal unsaturated bond, the resin composition being molded and then subjected to radiation crosslinking. | 11-19-2009 |
| 20140346143 | GAS INSULATED SWITCHGEAR AND MANUFACTURING METHOD OF THE SAME - A gas insulated switchgear includes a high-voltage conductor installed inside a ground tank filled with an insulation gas and the high-voltage conductor is supported on an insulation spacer and thereby fixed to the ground tank. The gas insulator switchgear is configured in such a manner that an insulation portion of the insulation spacer in contact with the insulation gas is covered with a cover film formed by hardening powder of any of thermoplastic resin, glass, cellulose, and polymer resin made of carbon and hydrogen having a particle size of 100 μm or less with epoxy resin. | 11-27-2014 |
| 20150014277 | INTERCHANGEABLE SWITCHING MODULE AND ELECTRICAL SWITCHING APPARATUS INCLUDING THE SAME - An interchangeable switching module is for an electrical switching apparatus including a first enclosure, separable contacts and an operating mechanism structured to open and close the separable contacts. The interchangeable switching module includes a second enclosure structured to fit within the first enclosure of the electrical switching apparatus; and an interchangeable electrical circuit and/or mechanical mechanism within the second enclosure and being structured to cooperate with switching of the separable contacts. | 01-15-2015 |
| 20220139643 | SWITCHING DEVICE WITH EFFECTIVE COOLING OF OUTFLOWING GASES - A switching device with effective cooling of outflowing gases includes: an arc extinguishing chamber; an orifice for outflow of the gases from the arc extinguishing chamber; and a multilayer wire cloth or fabric having at least a first wire layer and a second wire layer. The first wire layer and the second wire layer have a respective cloth or fabric structure including respective warp yarns and weft yarns. The first and second wire layers are disposed in a stacked configuration in the orifice such that a weaving direction of the warp yarns of the first wire layer is rotated by an angle in relation to a weaving direction of the warp yarns of the second wire layer, and a weaving direction of the weft yarns of the first wire layer is rotated by an angle in relation to a weaving direction of the weft yarns of the second wire layer. | 05-05-2022 |
