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:
Mar. 22, 2022
Filed:
Mar. 20, 2019
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Taiki Donen, Chiyoda-ku, JP;
Toshihiko Takematsu, Chiyoda-ku, JP;
Satoshi Ochi, Chiyoda-ku, JP;
Yuichi Takai, Chiyoda-ku, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
Provided is a small-sized, reliable vacuum interrupter that does not involve upsizing and complication of the reduction load application mechanism. A vacuum interrupter of the present invention includes a magnetic body disposed on a circumferential edge around a stem surface of at least one of a moving current-carrying stem and a fixed current-carrying stem. The magnetic body includes a lower magnetic permeance portion having a lower magnetic permeance than the other portion. The lower magnetic permeance portion produces a magnetic field parallel to the axial direction. Arc discharge is driven in the direction of the parallel magnetic field, thus being extinguished.