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:
Feb. 02, 2021
Filed:
Jun. 27, 2018
Meidensha Corporation, Tokyo, JP;
MEIDENSHA CORPORATION, Tokyo, JP;
Abstract
In case of using multi-contacts or flat braided wires for constituting a current carrying structure of a movable part in a vacuum relay, problems tend to appear, which are enlargement of a control mechanism, complication, increased operation force and the like. The vacuum relayincludes an insulating cylinder, a first relay connecting portionthat is connected to one open end of the insulating cylinderand has on its inner surface a first contact, a second relay connecting portionthat is arranged in the insulating cylinderto face the first relay connecting portion, a movable memberthat is movably arranged between the first and second relay connecting portionsandand has a second contact that is brought into contact with the first contact when the movable member is moved toward the first relay connecting portion, and a control mechanismthat moves the movable memberin both directions to establish and break the contact between the two contacts. Between the movable memberand the second relay connecting portion, there is provided a bellowsthrough which the movable memberand the second relay connecting portionare electrically connected.