Class 218/10 - Vacuum switch

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: 21
Last issue date: 03/11/2008

Number	Title	Issue Date
7342321	Bicycle electric power unit A bicycle electric power unit supplies electric power to a bicycle motor unit having a power source, a power source controller, a power source voltage detector, a first power source switch and a second power source switch. The power source controller turns off the f...	03/11/2008
7223932	Vacuum 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
7199324	High-voltage hybrid circuit-breaker The invention relates to a hybrid circuit-breaker which, for each pole, comprises a dielectric-gas interrupting chamber (1) which contains a first contact (1A) and a moving second contact (1B) that are disposed longitudinally to a first axis (AA...	04/03/2007
7186942	Three-position vacuum interrupter disconnect switch providing current interruption, disconnection and grounding A vacuum circuit interrupter includes a line conductor, a vacuum interrupter, a load conductor, a ground conductor and an operating mechanism. The vacuum interrupter includes a fixed conductor and a vacuum envelope containing a fixed contact and a movable contact mo...	03/06/2007
7148677	Vacuum 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...	12/12/2006
7135652	Vacuum 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
6951993	Vacuum 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
6740838	Contact 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
6529009	Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof A vacuum switch is composed by installing a vacuum circuit-breaker and a disconnector in different grounded vacuum vessels, respectively, and a vacuum-measurement device is attached to each grounded vacuum vessel. The above vacuum vessel communicates with...	03/04/2003
6426627	Vacuum switch including vacuum-measurement devices, switchgear using the vacuum switch, and operation method thereof A vacuum switch is composed by installing a vacuum circuit-breaker and a disconnector in different grounded vacuum vessels, respectively, and a vacuum-measurement device is attached to each grounded vacuum vessel. The above vacuum vessel communicates with...	07/30/2002
6335502	Vacuum switch and vacuum switch gear using the vacuum switch In order to provide a vacuum switch suitable for a distribution and transformation system compatible between structural simplicity and reliability and a vacuum switchgear using the vacuum switch, the vacuum switch comprises switching portions installed in...	01/01/2002
5859398	Sequential isolating circuit breaker and actuator A circuit breaker comprises a vacuum interrupter and an isolator in series combination, the vacuum interrupter providing fast interruption of current and the isolator providing a large gap when in the open condition for additional safety and protection ag...	01/12/1999
5663544	Switching device having a vacuum circuit-breaker shunt connected with a gas-blast circuit breaker A device for switching electric current includes a compressed gas switch, at least one vacuum switch, and two terminals. A first consumable contact of the compressed gas switch is electrically connected to a first of the two terminals and a movable electr...	09/02/1997
5591948	Vacuum cartridge, notably for a medium voltage electrical cicuit breaker or switch and a switch incorporating such a cartridge A vacuum cartridge for a medium voltage electrical switch, as well as a switch incorporating such a cartridge comprising an enclosure closed by two end-plates in which there are housed three contacts extending axially. Two of these contacts are stationary...	01/07/1997
5276286	Exposed high voltage outdoor disconnector for operation under icing conditions An outdoor grounding section switch has a female contact and a male contact at the end of a grounding blade that can be driven. The female contact is constituted by at least one hollow tubular thimble (11, 15), housed inside a vertical tubular insulator (...	01/04/1994
4538039	Composite circuit breaker A composite circuit breaker comprises a closing switch part disposed between a pair of conductors at a position relatively near a load apparatus, a vacuum circuit-breaking part disposed between the conductors at a position adjacent to the closing switch p...	08/27/1985
4520246	On-load tap changer of the type of vacuum switches The invention deals with an on-load tap changer having vacuum type switches, comprising: first vacuum switches for a main contact of which the ends on one side are connected to a plurality of tap selectors, and of which the ends on the other side are comm...	05/28/1985
4484046	Vacuum load break switch A vacuum load break switch uses a vacuum interrupter for the load break device together with a series connected visible disconnect which is interlocked with the vacuum interrupter mechanism. Further, the visible disconnect is grounded in the fully opened ...	11/20/1984
4302642	Vacuum switch assembly A vacuum switch assembly which is connectable as a shunting switch across the electrodes of an electrochemical cell, in which a plurality of electrical parallel current paths are provided through a plurality of parallel vacuum switches with separate elect...	11/24/1981
4220837	Bi-switch construction having an auxiliary interrupting device associated therewith An improved bi-switch construction is provided having an interrupting device arranged in electrical parallel relation therewith so that the circuit through each of the two switches is made through the interrupting device, and, subsequently, the interrupti...	09/02/1980
4105878	Vacuum interrupter and disconnect combination A compact combination vacuum interrupter and visible break disconnect switch, in which the interrupter is electrically connected in series with the disconnect. The interrupter is manually closed, and can be tripped manually or automatically on overcurrent...	08/08/1978

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Class 218/10 - Vacuum switch