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.

Date of Patent:
Dec. 14, 2004

Filed:

Jul. 30, 2003
Applicant:
Inventors:

Hideo Kawamoto, Hitachi, JP;

Kenichi Okubo, Hitachi, JP;

Tetsu Ishiguro, Hitachi, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 3/304 ;
U.S. Cl.
CPC ...
H01H 3/304 ;
Abstract

A gas-insulated switch equipped with a fixed contact and a moving contact that can contact with and separate from the fixed contact, wherein a single shock absorber absorbs the shock in both the breaking action and the closing action of the moving contact.


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