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| Number | Title | Issue Date |
| 8110771 | Vacuum insulating switch gear A vacuum insulating switch gear formed by integrally molding with epoxy resin of a vacuum double-break three-position type switch including a movable contact, a fixed contact, and a vacuum container composed of an insulating cylinder for covering the movable contact... | 02/07/2012 |
| 8039771 | Vacuum envelope including self-aligning end shield, vacuum interrupter, vacuum circuit interrupter and method including the same A vacuum envelope is for a fixed contact mounted on a fixed electrode and a moveable contact mounted on a moveable electrode. The vacuum envelope includes a ceramic tube including a first open end and a second open end. A first end member is secured to the first ope... | 10/18/2011 |
| 7939777 | Vacuum interrupter chamber The disclosure relates to a vacuum interrupter chamber having an insulating ceramic wall, within which contact pieces which move in a vacuum are arranged and are surrounded by a screen between the contact piece and the interrupter chamber wall. In order in this case... | 05/10/2011 |
| 7880111 | Switchgear and method of fabricating the same A switchgear including a vacuum valve which prevents partial discharges infallibly and whose reliability is high, and a method of fabricating the same are obtained. In a vacuum valve 1 wherein a stationary electrode 1a and a movable elect... | 02/01/2011 |
| 7820934 | Method for fixing an element in an electrical apparatus and an electrical apparatus including two parts fixed according to such a method A method for fixing an element to a part of an electrical apparatus may include interposing an extender between the element and the part, where the extender is able to exert forces on the element and the part to position the element with respect to the part and/or t... | 10/26/2010 |
| 7781694 | Vacuum fault interrupter Exemplary vacuum fault interrupters are described. ... | 08/24/2010 |
| 7285743 | Shielded encapsulated vacuum interrupter A shielded encapsulated vacuum interrupter with a ceramic vacuum chamber and opposing conductive end caps is provided. One end cap is electrically connected to a fixed contact, while an opposing end cap is connected to a moving contact. The moving contact is actuata... | 10/23/2007 |
| 7244903 | Vacuum switchgear A main circuit switching unit and an isolator are accommodated in a vacuum container. A first conductor and a main circuit conductor are arranged to extend in and out of the vacuum container. A movable electrode of the main circuit switching unit is connected to the... | 07/17/2007 |
| 7205499 | Device for fixing a shield in an electric switch, in particular a vacuum switch The present invention relates to a device for fixing a shield in a switch, said switch being housed in an enclosure comprising a cylindrical part closed by two end parts forming covers, said cylindrical part being connected at its two free ends respectively to the t... | 04/17/2007 |
| 7148441 | Solid dielectric encapsulated interrupter with reduced corona levels and improved BIL A current interrupter assembly includes an insulating structure, a current interrupter embedded in the structure, a conductor element embedded in the structure, a current interchange embedded in the structure and connected to create a current path between the curren... | 12/12/2006 |
| 6930270 | Connection area between housing parts of a vacuum interrupter, and a vacuum interrupter having a connection area of this type The aim of the invention is to optimize, in vacuum interrupters, the connection area (12, 13, 14) between housing parts (2, 3, 4, 5), which are coaxially assigned to one another, with regard to the complexity of production for centering measures and wi... | 08/16/2005 |
| 6891122 | Vacuum switch tubes On both sides of a metal switching chamber, the novel vacuum switch tubes are respectively provided with two ceramic insulators which have the same diameter. Axially interspaced cylindrical vapor shields are fixed to the wing parts of said components. The easy to pr... | 05/10/2005 |
| 6884940 | Vacuum switchgear A main circuit switching unit and an isolator are accommodated in a vacuum container. A first conductor and a main circuit conductor are arranged to extend in and out of the vacuum container. A movable electrode of the main circuit switching unit is connected to the... | 04/26/2005 |
| 6762388 | Vacuum cartridge for an electrical protection apparatus such as a switch or circuit breaker The present invention relates to a vacuum cartridge for an electrical protection apparatus such as a switch or a circuit breaker, said cartridge comprising an enclosure of substantially cylindrical shape closed by two end plates, two contacts extending axially insid... | 07/13/2004 |
| 6720515 | Vacuum interrupter with two contact systems This invention relates to a novel vacuum interrupter. The aim of the invention is for said is for said interrupter to perform the functions switching, disconnection and earthing and to be economically producible. Said aim is achieved by means of a first contact syst... | 04/13/2004 |
| 6657149 | Vacuum interrupter with a vapor shield A vacuum interrupter with a tubular insulator, to dielectrically optimize the fixing of a vapor shield which is provided at an encircling step of the ceramic insulator. A holding ring is assigned to the vapor shield and has a cylindrical region, which is ... | 12/02/2003 |
| 6506067 | Disconnector The disconnector essentially comprises two isolating contacts (2), which are arranged in electrically conductive encapsulation (1) filled with insulating gas, and an isolating contact finger (3) arranged such that it can be moved between them. An insulati... | 01/14/2003 |
| 6417473 | Method and apparatus for mounting vapor shield in vacuum interrupter and vacuum interrupter incorporating same The tubular vapor shield of a vacuum interrupter is secured to the ceramic by a shield mount which includes a split ring seated in a circumferential groove formed in the inner surface of the ceramic. The tubular vapor shield is secured to the split ring b... | 07/09/2002 |
| 5929411 | Vapor shield for vacuum interrupters A vacuum interrupter (VI) is provided having two arcing contacts, at least one of which is axially moveable, and a metal-vapor condensing shield which is shaped to allow the VI to withstand a high peak value of pulsed or sinusoidal high voltage applied to... | 07/27/1999 |
| 5864109 | Terminal connection locking apparatus for vacuum circuit breaker A terminal connection locking apparatus for a vacuum circuit breaker a trapping latch movably engaged to a driving cam, a crossbar connected to a lower portion of the trapping latch, change levers connected to a central lower surface portion and each side... | 01/26/1999 |
| 5808258 | Encapsulated high voltage vacuum switches An encapsulated high voltage switch has an elastomeric housing made of a first high dielectric strength resilient material such as EPDM. A generally tubular reinforcing element is formed or press fitted in intimate contact with the first elastomeric mater... | 09/15/1998 |
| 5687472 | Method of manufacturing a vacuum interrupter A method for manufacturing a vacuum interrupter including, a vacuum enclosure composed of an insulating tube sealed by metal flanges, a pair of electrodes in the vacuum enclosure which are able to make and break contact, and a pair of conducting shafts. T... | 11/18/1997 |
| 5661281 | Vacuum-type interrupter having an annular insulator To be able to reliably switch high short-circuit currents in the case of a vacuum-type interrupter of small construction, first of all the annular insulator (6), which together with two cap-like metal parts (5,7) forms the housing of the vacuum-type inter... | 08/26/1997 |
| 5315081 | Vacuum switching tube for low-voltage and medium-voltage switches, particularly for vacuum contactors A vacuum switching tube contains a switching chamber and a first contact piece fixed in place in it, as well as a movable current conducting rod with a second contact piece and a ring-shaped insulator. According to the present invention, the ring-shaped i... | 05/24/1994 |
| 5313030 | Vacuum switch A vacuum switching tube has a cylindrical housing, including an insulator which directly surrounds contact pieces of the tube. The radial distance of the insulator from the contact pieces is less than or at most equal to the length of the contact stroke. ... | 05/17/1994 |
| 5286932 | Vacuum bulb provided with electrical insulation A vacuum bulb for interrupting an electrical circuit, the bulb comprising two electrical poles enabling an electrical connection to be established between the outside and interrupting contacts placed inside the bulb, the body of the bulb being dielectrica... | 02/15/1994 |
| 5206616 | Switching device for the interruption of fault currents A switching device for the interruption of a fault current includes a housing having first and second electrical connectors for connection in the path of an electrical conductor carrying a single current phase. A vacuum switching chamber is disposed in th... | 04/27/1993 |
| 5118911 | High voltage vacuum insulating container A high voltage vacuum insulating container includes a cylindrical insulating tube and sealing metal members sealingly fitted to both ends of the cylindrical insulating tube which receives therein a pair of opposing electrodes to be applied with a high vol... | 06/02/1992 |
| 4940862 | Vacuum interrupter with improved vapor shield for gas adsorption A vacuum circuit interrupter includes a vapor condensing shield formed of a porous structure of copper including a grain size inhibitor, such as boron, and a gettering metal, such as titanium or zirconium, in order to achieve enhanced levels of gas adsorp... | 07/10/1990 |
| 4937405 | Vacuum switch chamber A vacuum switch chamber includes a ceramic body having two ends, two cylinder halves defining an encompassing parting line between the halves and an internal groove along the parting line. Metal caps close both of the ends. Mutually movable conductor bolt... | 06/26/1990 |
| 4896008 | Vacuum discharge device A vacuum discharge device comprising an insulating envelop having metallic layers formed by a metallizing process respectively on the opposite ends thereof, electrodes disposed within the insulating envelop, and sealing members brazed respectively to the ... | 01/23/1990 |
| 4797522 | Vacuum-type circuit interrupter A vacuum circuit interrupter comprising an insulated, evacuated, cylindrical housing for a stationary electrode and a movable electrode, with an arc shield provided with a predetermined spacing from and connected to the stationary electrode. The dimension... | 01/10/1989 |
| 4760222 | Vacuum circuit interrupter A vacuum circuit interrupter comprising in a vacuum vessel at least a pair of a separable stationary electrode and a movable electrode, and a main shield concentrically surrounding the electrodes. The main shield has a large-diameter portion at the centra... | 07/26/1988 |
| 4757166 | Vacuum interrupter with ceramic enclosure A vacuum interrupter characterized by an all-ceramic envelope forming an evacuated chamber in which a pair of separable contacts are disposed. The envelope is comprised of two substantially half portions having abutting end surfaces that are secured toget... | 07/12/1988 |
| 4746777 | Vacuum switching tube A vacuum switching tube comprises a simply-constructed housing which is established in that cap-like metal portions are soldered blunt to the end faces of a ceramic portion, in that the metal parts comprise a cylindrical region of reduced wall thickness i... | 05/24/1988 |
| 4740662 | Vacuum circuit interrupter A vacuum circuit interrupter comprising in a vacuum vessel at least a pair of separable stationary electrode and a movable electrode, and a main shield surrounding the electrodes. The axial length L of the main shield is greater than T1 and sma... | 04/26/1988 |
| 4737605 | Vacuum switching tube A vacuum switching tube includes a pair of switch contacts having a larger diameter than their appertaining contact pins, an axial magnetic field being generated in the region of the switch contacts by a shield having high electrical conductivity. The shi... | 04/12/1988 |
| 4665287 | Shield assembly of a vacuum interrupter A vacuum interrupter whose envelope comprises a cylindrical insulated casing and top and bottom metal end bells that support movable and fixed contact rods. The cylindrical wall portion of the end shields are secured to the cylindrical wall portion of the... | 05/12/1987 |
| 4614850 | Vacuum switch for the low-voltage range, especially a low-voltage contactor A vacuum switch for the low-voltage range, in particular, a low voltage contactor, comprising a vacuum switching tube having a switching chamber and a first contact rigidly arranged therein and a lead-in pin movable relative thereto having a second contac... | 09/30/1986 |
| 4574169 | Bimetallic arc shield A vacuum-type circuit interrupter is provided having a bimetallic vapor or condensing shield. The shield has a first surface consisting of a layer of a high electrically conductivity metal, as for example copper which is exposed to or faces the arcing are... | 03/04/1986 |
