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. 15, 2005
Filed:
Feb. 13, 2003
Shuuichi Kikukawa, Hitachi, JP;
Yasuaki Suzuki, Hitachi, JP;
Tooru Tanimizu, Hitachi, JP;
Koichi Murata, Kashiwa, JP;
Ryotaro Hanabuchi, Chiba, JP;
Shuuichi Kikukawa, Hitachi, JP;
Yasuaki Suzuki, Hitachi, JP;
Tooru Tanimizu, Hitachi, JP;
Koichi Murata, Kashiwa, JP;
Ryotaro Hanabuchi, Chiba, JP;
Hitachi, Ltd., Tokyo, JP;
The Tokyo Electric Power Company, Incorporated, Tokyo, JP;
Abstract
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 characterized in that the grounding switch and the external connection conductor are electrically connected to each other in the vacuum container.