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Class 218/118 - Vacuum


Subclass of Class 218 - High-voltage switches with arc preventing or extinguishing devices
Definition: Subject matter wherein the contacts are enclosed in an evacuated
No. of patents: 136
Last issue date: 05/15/2012


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NumberTitleIssue Date
8178812Insulation of a switchgear device of vacuum cartridge type by insert moulding
A vacuum cartridge (1) is manufactured with a dielectric coating (22) made from elastomer directly on the enclosure of the chamber (2) of the cartridge (1). To prevent the elastomer from infiltrating into the chamber (2) of the car...
05/15/2012
7334319Method for opening the contact gap of a vacuum interrupter
The aim of the invention is to improve the breaking ability of vacuum interrupter in the medium- and high-voltage range. Said aim is achieved whereby the contact pieces which may be displaced relative to each other are moved with a relatively high speed during a fir...
02/26/2008
7336477Electrical switching apparatus and heat sink therefor
A heat sink is for an integrally fused low-voltage power air circuit breaker including a line terminal and electrical bus work coupled to a current limiter. The line terminal, electrical bus work, and current limiter contribute to the formation of a thermal dam. The...
02/26/2008
7332906Vacuum circuit interrupter including circuit monitoring leakage or loss of vacuum and method of monitoring a vacuum interrupter for leakage or loss of vacuum
A method monitors a vacuum interrupter for leakage or loss of vacuum. The vacuum interrupter includes a line side, a load side and separable contacts electrically connected therebetween. The line side has a line side voltage and the load side has a load side voltage...
02/19/2008
7319309Load tap change monitoring system and method
A system and method for remotely monitoring load tap changes on utility-type equipment are disclosed. In one example embodiment, a sensor measures a voltage before a tap change and compares the measured voltage to a voltage after the tap change. From this informatio...
01/15/2008
7310221Switching installation provided with an electrically insulating barrier
A switching installation (5) having a circuit breaker (12), which is connected to a cable connection (33), and optionally a disconnector (14) for making or breaking a conductive connection between the cable connection (33) and a ra...
12/18/2007
7304262Vacuum encapsulation having an empty chamber
A vacuum assembly including a vacuum interrupter may be sealed with a compliant material and/or rubber plugs, so that a cavity is created and maintained within the assembly for use with a current exchange housing and/or bellows, during operation of the vacuum interr...
12/04/2007
7271447Semiconductor device
A semiconductor substrate includes a first semiconductor layer that is formed on a semiconductor base substrate, a second semiconductor layer that is formed on the first semiconductor layer and that has an etching selection ratio smaller than that of the first semic...
09/18/2007
7253379High voltage circuit breaker with cooling
In order to dissipate heat losses from the inner conductor (21), the circuit breaker (20) having an elongated inner conductor (21) and an outer conductor (22) which surrounds the inner conductor (21) like a housing has at least one...
08/07/2007
7251889Manufacture of a heat transfer system
A method of making an evaporator includes orienting a vapor barrier wall, orienting a liquid barrier wall, and positioning a wick between the vapor barrier wall and the liquid barrier wall. The vapor barrier wall is oriented such that a heat-absorbing surface of the...
08/07/2007
7250584Contact element comprising rounded slot edges
The aim of the invention is to prevent local spikes from being created in a contact element of a contact arrangement used for interrupting a current in a distribution network, said contact element comprising a contact support (8) that encompasses a hollow cyl...
07/31/2007
7244903Vacuum 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
7239492Control system for at least one vacuum interrupter gap
A control system for at least one vacuum interrupter gap in a high-voltage switching device includes at least one non-reactive control resistor disposed in parallel with the vacuum interrupter. The non-reactive control resistor merges concentrically onto the vacuum ...
07/03/2007
7239490Medium voltage vacuum circuit interrupter
An encapsulated medium voltage vacuum circuit interrupter includes a line terminal, a load terminal, a vacuum interrupter, an operating mechanism and an elongated, insulated, generally cylindrical encapsulating housing. The vacuum interrupter includes a vacuum envel...
07/03/2007
7230304Electric contacts and method of manufacturing thereof, and vacuum interrupter and vacuum circuit breaker using thereof
An electric contact member which is excellent in voltage-proof performance and melt-resistant performance and excellent in mass productivity, and a method of manufacturing thereof, and a vacuum interrupter, a vacuum circuit breaker and a load-break switch for a road...
06/12/2007
7223932Vacuum Switchgear
Disclosed is a vacuum switchgear comprising an electro-conductive outer vacuum container, a plurality of inner container disposed in the outer vacuum container. The inner containers and the outer container are electrically isolated from each other. The outer contain...
05/29/2007
7205499Device 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
7187106Positioning mechanism, exposure apparatus and device manufacturing method
The present invention provides a positioning mechanism and an exposure apparatus that can be used in a vacuum ambience and has a damping function with small degassing and small dust creation. A positioning mechanism according to the present invention, when used with...
03/06/2007
7173208Vacuum interrupter
A vacuum interrupter for reducing contact resistance and thereby reducing electromagnetic repulsive force between electrodes, is obtained. The vacuum interrupter includes a stationary electrode rod fixedly placed on one closed end of a cylindrical evacuated envelope...
02/06/2007
7140916Electrical connector having one or more electrical contact points
An electrical connector having one or more electrical contacts for providing an electrical connection to an inserted pin is provided. The electrical connector includes a spring made of electrically conductive material and a loading element attached to the spring and...
11/28/2006
7135652Vacuum switchgear
Disclosed is a vacuum switchgear comprising an electro-conductive outer vacuum container, a plurality of inner container disposed in the outer vacuum container. The inner containers and the outer container are electrically isolated from each other. The outer contain...
11/14/2006
7122759Compact earthing switch for gas-insulated switchgear assemblies
A compact earthing switch (1′) is provided by a mounting lid (10) of the gas-insulated switchgear assembly (15) having a concave physical volume (100) which extends the gas chamber (9) and by the earthing switch fixed contact (
10/17/2006
7107138Automotive speed control disable switch
A new automotive (speed control system) safety feature is disclosed. A vehicle with an engaged speed control could be dangerous to drive on a road surface that changes from dry, offering little rolling resistance, to a surface that offers increased resistance to tir...
09/12/2006
7103453Installation of a protective function in a protective device for an electrical power distribution network
A method for installation of a programmable protective function in a protective device for an electrical power distribution network, with the protective device having means for processing measured values from measurement appliances for the power distribution network...
09/05/2006
7098418Vacuum circuit breaker, vacuum circuit breaker contact slow closing method, and contact erosion measuring method and contact gap length setting method using that slow closing method
An adjusting bolt is screwed into a nut attached to a dolly, and is disposed such that a central axis thereof is parallel to a closing and opening direction of a contact. A lever is attached to a shaft. An electrically-insulating rod is coupled to a first end of the...
08/29/2006
7045731Switch contact arrangement with an erosion display for the switch contacts
The invention relates to a switch contact arrangement with a first moving switch contact, with a second switch contact, provided for the first switch contact and with an erosion display, for the switch contacts. The erosion display comprises an erosion pointer and a...
05/16/2006
7041929Contact arrangement for a vacuum switch tube
The invention relates to a contact arrangement for a vacuum switch tube for low-voltage power switches. The aim of the invention is to reduce the contact force required to control short circuit currents. To this end, a twin-contact contact arrangement is used wherei...
05/09/2006
7038157Vacuum circuit breaker with coaxial coil for generating an axial magnetic field in the vicinity of the contact members of the circuit breaker
Vacuum circuit breaker, provided with a casing, in which a fixed and movable contact member are each attached to a supporting contact rod and supported therein in a mutually electrically isolated manner, and a coil coaxial to the casing and surrounding the contact m...
05/02/2006
6965089Axial magnetic field vacuum fault interrupter
An improved vacuum interrupter is disclosed. The vacuum interrupter includes a ring-shaped structure placed between a contact support structure and an electrical contact associated with the contact support structure. A resistivity of the ring-shaped structure is hig...
11/15/2005
6951993Vacuum switch
A vacuum switch comprises a vacuum container, a grounding switch and a load switch disposed in the container, and an external connection conductor disposed in the vacuum container and to be connected electrically inside and outside the vacuum container, and it is ch...
10/04/2005
6930271Circuit interrupter including linear actuator and manual pivot member
A power circuit interrupter includes a housing having an opening, one or more vacuum interrupters including separable contacts, and an operating mechanism, supported by the housing, adapted to open and close the contacts. A linear actuator cooperates with the operat...
08/16/2005
6891122Vacuum 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
6884940Vacuum 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
6867385Self-fixturing system for a vacuum interrupter
A vacuum interrupter includes end covers having a curved or looped portion, which serves to connect a coil segment of the vacuum interrupter to a ceramic envelope of the vacuum interrupter, and thereby help maintain a vacuum seal for the interrupter. The curved port...
03/15/2005
6864456Vacuum interrupter chamber with ring-shaped insulator
A new vacuum switching chamber is intended for power breakers in the low-voltage range and is distinguished by a compact form with a small physical height and a high switching capacity. Its enclosure includes a plate-like power current connection, a cylindrical wall...
03/08/2005
6855903Vacuum switch
A vacuum switch comprises a vacuum container, a grounding switch and a load switch disposed in the container, and an external connection conductor disposed in the vacuum container and to be connected electrically inside and outside the vacuum container, and it is ch...
02/15/2005
6765168Electrode of vacuum circuit breaker, and method of producing electrode of vacuum circuit breaker
An electrode of a vacuum circuit breaker has a cup member and a contact. The cup member has an opening and a periphery which is formed with a slit so as to form a coil section. An electric current flows in the coil section so as to generate a longitudinal magnetic f...
07/20/2004
6765167Electric contact member and production method thereof
An electric contact member has a texture wherein fire proof metal powder having the form of a flat plate is diffused in a matrix of a highly conductive metal. The flat surface is oriented in one direction and the surface in parallel with the flat surface of the fire...
07/20/2004
6740838Contact for vacuum interrupter and vacuum interrupter using the contact
A contact and a vacuum interrupter using the contact. The contact includes a hollow cylindrical contact carrier and a contact plate disposed on one of the axial end faces of the contact carrier. First slits and second slits extend from the one of the axial end faces...
05/25/2004
6720515Vacuum 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
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