| Patent application number | Description | Published |
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| 20120199556 | TERMINALS FOR VACUUM CIRCUIT BREAKER AND VACUUM CIRCUIT BREAKER HAVING THE SAME - Terminals for a vacuum circuit breaker include: a first terminal having a plurality of supporting rings, a plurality of finger contactors, and ring-shaped springs installed to contact an outer circumferential surface of the finger contactors so as to provide an elastic force to the finger contactors toward the center; a second terminal having an outer diameter larger than an inner diameter of the first terminal formed by an inner circumferential surface of the finger contactors of the first terminal, and configured by a bushing-type electric conductor; and an insulation guide member detachably fixed to a leading end of the second terminal such that an electric insulating property of the second terminal increases when the first and second terminals are disconnected from each other, having an electric insulating property, and tapered so as to have a decreased outer diameter as a distance from the second terminal becomes long. | 08-09-2012 |
| 20120199557 | FLEXIBLE SHUNT FOR VACUUM CIRCUIT BREAKER - A flexible shunt for a vacuum circuit breaker can have a reduced straight length and improved flexibility even with an increased thickness within a predetermined accommodation space of a main circuit part. The flexible shunt comprises a pair of conductive plates, each including a clamp connecting portion configured as a flat conductive member, the clamp connecting portion being connected the clamp, a terminal side connecting portion configured as a flat conductive member, the terminal side connecting portion being connected to the terminal side, and a flexible curved portion configured to connect the clamp connecting portion to the terminal side connecting portion, the flexible curved portion being formed to be projected outwardly. | 08-09-2012 |
| 20120261239 | CIRCUIT BREAKER HAVING CRADLE - A circuit breaker having a cradle, the circuit breaker comprises: an upper shutter and a lower shutter configured to open and close terminals of the cradle; an upper shutter operation link having one end connected to the upper shutter and another end rotatably coupled to a pivot; a lower shutter operation link having one end connected to the lower shutter and another end rotatably coupled to the pivot; and a shutter safety device comprising a coupling unit fixedly-coupled to the pivot, a rotation unit rotatably coupled to the coupling unit, and a link fixing unit provided at one end of the rotation unit, wherein the link fixing unit is to restrict rotation of the upper shutter operation link and the lower shutter operation link in a contacting manner. | 10-18-2012 |
| 20140027408 | CIRCUIT BREAKER - A circuit breaker according to the present disclosure includes a cradle having an accommodation space therein, the cradle having a plurality of terminals and a breaker main body having a plurality of terminal connectors contactable with the terminals, respectively, and a plurality of vacuum interrupters connected to the terminal connectors, respectively, the breaker main body being installed within the cradle to be movable between a connected position where the terminal connectors are connected to the terminals and a disconnected position where the terminal connectors are separated from the terminals. Each of the terminal connectors to includes a plurality of segment conductors each having one end connected to the vacuum interrupter and the other end facing the terminal. According to the configuration, an amount of heat radiated may increase without an increase in an amount of copper used, thereby facilitating for cooling the terminal connectors. | 01-30-2014 |
| 20150102608 | DOOR INTERLOCK DEVICE FOR TRANSFORMER ROOM OF VACUUM CIRCUIT BREAKER - A door interlock device for a power transformer room in a vacuum circuit breaker includes a cam disposed on a shaft of a ground switch, a supporter disposed on a side plate of a power transformer room, a shaft disposed at the supporter to be slidable and having one end contacting the cam to be upward and downward movable, a spring disposed within the supporter to provide an upward elastic force to the shaft, and an interlock plate disposed at one side of the power transformer room door and configured to be in contact with the shaft. | 04-16-2015 |
| 20160126028 | DOOR INTERLOCK DEVICE FOR VACUUM CIRCUIT BREAKER - The present invention relates to a door interlock device for a vacuum circuit breaker, and more particularly, a door interlock device for a vacuum circuit breaker, which is operable in cooperation with an operation of a cradle shutter. A door interlock device for a vacuum circuit breaker according to one embodiment disclosed herein includes a pressing unit that is provided on one end portion of a shutter lever driving a terminal shutter of a cradle, a driving force transfer unit that is rotatably or slidably installed on a cradle side frame, the driving force transfer unit performing a rotary motion or a sliding motion by a force applied from the pressing unit, and a sliding member that is configured to lock or unlock a door lock plate in response to a driving force transferred from the driving force transfer unit. | 05-05-2016 |
| 20160126036 | INTERLOCK APPARATUS OF VACUUM CIRCUIT BREAKER - There is provided an interlock apparatus of a vacuum circuit breaker for adjusting withdrawal of a circuit breaker main body, which is installed in a truck and moves to a connected position in which the circuit breaker main body is connected to a cradle and moves to a disconnected position in which the circuit breaker main body is separated from the cradle within the cradle, to outside of the cradle, includes: a lift including a rotation adjusting plate provided on an upper portion thereof, and moving forwardly and backwardly such that the rotation adjusting plate is inserted into the interior of the cradle or separated from the cradle; and an interlock plate provided within the cradle and rotating according to movement of the rotation adjusting plate so as to be tightly attached to the truck or released from the tightly attached state to thereby adjust withdrawal of the circuit breaker main body to the outside of the cradle. | 05-05-2016 |
| Patent application number | Description | Published |
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| 20090008701 | NONVOLATILE MEMORY DEVICE AND METHOD OF FABRICATING THE SAME - A nonvolatile memory device includes a semiconductor substrate, a charge trap layer formed on the semiconductor substrate, a blocking layer formed on the charge trap layer, and a gate electrode formed on the blocking layer. Sides of blocking layer extend laterally beyond sides of the charge trap layer and lateral sides of the gate electrode. | 01-08-2009 |
| 20090026526 | INTEGRATED CIRCUIT DEVICES INCLUDING A MULTI-LAYER STRUCTURE WITH A CONTACT EXTENDING THERETHROUGH AND METHODS OF FORMING THE SAME - Integrated circuit devices have a first substrate layer and a first transistor on the first substrate layer. A first interlayer insulating film covers the first transistor. A second substrate layer is on the first interlayer insulating film and a second transistor is on the second substrate layer. A second interlayer insulating film covers the second transistor. A contact extends through the second interlayer insulating film, the second substrate layer and the first interlayer insulating film. The contact includes a lower contact and an upper contact that contacts an upper surface of the lower contact to define an interface therebetween. The interface is located at a height no greater than a height of a top surface of the second substrate and greater than a height of a bottom surface of the second substrate layer. | 01-29-2009 |
| 20110081778 | SEMICONDUCTOR DEVICE HAVING FINE PATTERN WIRING LINES INTEGRALLY FORMED WITH CONTACT PLUG AND METHOD OF MANUFACTURING SAME - A semiconductor device and method are disclosed in which an interlayer insulating layer is patterned using multiple overlaying masks to define the geometry of contact plugs and corresponding wiring layers separated by fine pitches. | 04-07-2011 |
| 20110127595 | INTEGRATED CIRCUIT DEVICES INCLUDING A MULTI-LAYER STRUCTURE WITH A CONTACT EXTENDING THERETHROUGH - Integrated circuit devices have a first substrate layer and a first transistor on the first substrate layer. A first interlayer insulating film covers the first transistor. A second substrate layer is on the first interlayer insulating film and a second transistor is on the second substrate layer. A second interlayer insulating film covers the second transistor. A contact extends through the second interlayer insulating film, the second substrate layer and the first interlayer insulating film. The contact includes a lower contact and an upper contact that contacts an upper surface of the lower contact to define an interface therebetween. The interface is located at a height no greater than a height of a top surface of the second substrate and greater than a height of a bottom surface of the second substrate layer. | 06-02-2011 |
| 20110318914 | METHOD OF FABRICATING SEMICONDUCTOR DEVICE - A method of fabricating a semiconductor device, in which an interference effect between word lines is substantially reduced or eliminated, includes forming a plurality of gate patterns on a substrate; forming a first insulating layer between the gate patterns, the first insulating layer filling a region between the gate patterns; etching the first insulating layer to remove a portion of the first insulating layer to a predetermined depth; and forming a second insulating layer on the gate patterns and the first insulating layer. A low-dielectric-constant material is formed between the gate patterns. | 12-29-2011 |
| 20130134496 | SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING THE SEMICONDUCTOR DEVICES - A method of manufacturing a semiconductor device, the method including forming a tunnel insulating layer on an upper surface of a substrate, forming gate patterns on an upper surface of the tunnel insulating layer, forming capping layer patterns on sidewalls of the gate patterns and on the upper surface of the tunnel insulating layer, etching a portion of the tunnel insulating layer that is not covered with the gate patterns or the capping layer patterns to form a tunnel insulating layer pattern, and forming a first insulating layer on the upper surface of the substrate to cover the gate patterns, the capping layer patterns, and the tunnel insulating layer pattern, wherein the first insulating layer has an air gap between the capping layer patterns. | 05-30-2013 |
| 20150054054 | SEMICONDUCTOR DEVICES - A method of manufacturing a semiconductor device, the method including forming a tunnel insulating layer on an upper surface of a substrate, forming gate patterns on an upper surface of the tunnel insulating layer, forming capping layer patterns on sidewalls of the gate patterns and on the upper surface of the tunnel insulating layer, etching a portion of the tunnel insulating layer that is not covered with the gate patterns or the capping layer patterns to form a tunnel insulating layer pattern, and forming a first insulating layer on the upper surface of the substrate to cover the gate patterns, the capping layer patterns, and the tunnel insulating layer pattern, wherein the first insulating layer has an air gap between the capping layer patterns. | 02-26-2015 |
