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:
Mar. 19, 2024

Filed:

Jan. 10, 2020
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Kazuki Sugino, Tokyo, JP;

Yasunori Nakamura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 33/662 (2006.01); H01H 33/666 (2006.01);
U.S. Cl.
CPC ...
H01H 33/66207 (2013.01); H01H 33/66238 (2013.01); H01H 33/6661 (2013.01); H01H 2033/66223 (2013.01);
Abstract

A vacuum circuit breaker includes: a grounded tank; a vacuum valve including a vacuum container housing a movable contact and a stationary contact, a movable conductor that is connected to the movable contact and extends out of the vacuum container, and a tubular bellows; a tubular movable-side bushing conductor; a slider movably set inside the movable-side bushing conductor; a movable-side frame that communicates with a space inside a tube of the bellows and electrically connects the movable-side bushing conductor to the movable conductor; an operation rod having one end protruding to an outside of the grounded tank and an opposite end connected to the movable conductor; an operating device that moves the operation rod; a movable-side support plate covering an end of the grounded tank where the operation rod extends out of the grounded tank; and a packing set in a hole.


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