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:
Jul. 26, 1988
Filed:
Sep. 22, 1987
Mitsumasa Yorita, Amagasaki, JP;
Abstract
A vacuum circuit interrupter comprising in a vacuum vessel at least a pair of a separable stationary electrode and a movable electrode, and a main shield concentrically surrounding the electrodes. The main shield has a large-diameter portion at the central portion and a small-diameter portion at opposite ends. The axial length L of the large-diameter portion of the main shield is the length expressed by: ##EQU1## where, .PHI..sub.2 =inner diameter of the large-diameter portion of main shield, and .PHI..sub.1 =outer diameter of the electrode. The taper angle from the large-diameter portion to the small-diameter portion is selected to be 80.degree..about.100.degree..
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile