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:
Nov. 30, 1982
Filed:
Jul. 17, 1980
Applicant:
Inventors:
Yoshiyuki Kashiwagi, Tokyo, JP;
Shuzo Tanigaki, Tokyo, JP;
Naoki Kondo, Yokohama, JP;
Tsutae Suzuki, Tokyo, JP;
Assignees:
Kabushiki Kaisha Meidensha, Tokyo, JP;
Kabushiki Kaisha Gemvac, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ;
Abstract
A vacuum power interrupter is disclosed wherein a chromium oxide film is formed on a surface of a stainless steel shield disposed within a vacuum vessel, thereby making it possible to improve the flashover voltage and interrupting ability.