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:
Sep. 22, 1987
Filed:
Nov. 19, 1985
Yukio Kurosawa, Hitachi, JP;
Kiyoji Iwashita, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A pair of separable disc shaped electrodes for a vacuum circuit breaker, each including an annular contact part formed around the outer circumferential portion of the electrode on the facing surface to the other electrode, a round recessed part formed on the inner portion thereof and surrounded by the annular contact part, an elastic support plate placed on the non-facing surface thereof and three straight grooves extending from the outer periphery of the annular contact part to the inner periphery thereof so that arcing on the round recessed part is prevented during a circuit breaking operation of the vacuum circuit breaker.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile