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:
Feb. 07, 2012
Filed:
Feb. 17, 2010
Keiichi Takahashi, Hitachi, JP;
Kenji Tsuchiya, Hitachi, JP;
Akio Nakazawa, Hitachi, JP;
Hisao Kawakami, Hitachi, JP;
Keiichi Takahashi, Hitachi, JP;
Kenji Tsuchiya, Hitachi, JP;
Akio Nakazawa, Hitachi, JP;
Hisao Kawakami, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
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 and the fixed contact, a lower lid for closing a lower part of the insulating cylinder, and an upper lid for closing an upper part of the insulating cylinder and an operation rod side of the movable contact, and an earthing switch with a vacuum closed container, comprising