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:
May. 01, 2012
Filed:
Dec. 23, 2008
Applicants:
Masato Kobayashi, Hitachi, JP;
Kenji Tsuchiya, Hitachi, JP;
Daisuke Sugai, Hitachi, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A vacuum switchgear comprising a vacuum container, two fixed contacts and two movable contacts for being in contact with and out of contact with the fixed contacts which are disposed in the vacuum container, and two operation rods linked to the each movable contact, respectively, characterized that a connection conductor having a current collector for making electrical sliding contact with the external surface of the each operation rod, which is fixed to outlet parts of the vacuum containers, from which extend the operation rod outwardly.