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:
Apr. 21, 1987
Filed:
Mar. 20, 1984
Kabushiki Kaisha Meidensha, Tokyo, JP;
Abstract
A vacuum interrupter of improved large current interrupting capability and dielectric strength has a pair of separable electrodes (5,6) a vacuum envelope (4) electrically insulating and enclosing the pair therewithin, a contact-making portion (14) of material of 20 to 60% IACS electrical conductivity being a part of one electrode (6) of the pair, a magnetically arc-rotating portion (13) of material of 2 to 30% IACS electrical conductivity secured to the contact-making portion (14) so as to be apart from the other electrode (5) when the electrodes (5,6) are in engagement, and means, which include a plurality of slots extending radially and circumferentially of the magnetically arc-rotating portion (13) and being apart from each other, for magnetically rotating the arc established between the electrodes (5,6) on an arcing surface of the electrode (6).