The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 07, 2012
Filed:
Apr. 07, 2008
Hiroshi Isoya, Chiyoda-ku, JP;
Masahiro Arioka, Chiyoda-ku, JP;
Tomotaka Yano, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;
Abstract
Provided is a vacuum circuit breaker whose insulation cylinder contained in a gas-insulated-switchgear housing contains a vacuum valve and which can be downsized while the cylinder's required mechanical strength is retained, and a gas-insulated switchgear using the same is also provided. The vacuum circuit breaker includes a plurality of insulation cases that are arranged parallel to each other in a container filled with an insulating gas, and each of the plurality of insulation cases includes a first insulation frame in which a section orthogonal to its longitudinal direction is in a substantial square-bracket shape, a second insulation frame in which a section orthogonal to its longitudinal direction is in a substantial square-bracket shape and which is arranged with a gap from the first insulation frame in a manner that open sides of the substantially square-bracket shaped frames oppose to each other, and a vacuum valve that contains attachable and detachable electrodes and is housed in each of the plurality of insulation cases.