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:
Jan. 13, 2026
Filed:
Apr. 28, 2021
Mitsubishi Electric Corporation, Tokyo, JP;
Yusuke Tomizawa, Tokyo, JP;
Takuma Sasai, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A circuit breaker including a bellows member having a sufficient fatigue life is obtained. The circuit breaker includes a fixed electrode, a movable electrode, a container, a movable shaft, a bellows member, and a resin layer. The bellows member is disposed so as to surround a periphery of the movable shaft. The resin layer is connected to the plurality of uneven portions of the bellows member. The resin layer includes a first part, a second part, and a third part. The first part is connected to a first recess and has a first thickness. The second part is connected to a second recess and has a second thickness. The third part is connected to at least one of a plurality of intermediate recesses and has a third thickness. The third thickness is thinner than the first thickness and the second thickness.