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. 12, 1985
Filed:
Nov. 15, 1982
Shinzo Sakuma, Kawasaki, JP;
Junichi Warabi, Shizuoka, JP;
Masayuki Kano, Shizuoka, JP;
Yutaka Kashimoto, Numazu, JP;
Kabushiki Kaisha Meidensha, Tokyo, JP;
Abstract
A vacuum interrupter has a hollow metallic cylinder, insulating end plates made of inorganic insulating material and connected to the opposite ends of the metallic cylinder, stationary and movable lead rods which extend into the metallic cylinder through the insulating end plates and which support separable electrical contacts, a bellows connecting the movable lead rod to the corresponding insulating end plate, and auxiliary sealing members which connect the metallic cylinder to both the insulating end plates by means of brazing. At least one of each pair of members to be brazed has a groove for solid brazing material which is closed from the vacuum chamber of the interrupter. The vacuum interrupter facilitates arrangement of the solid brazing material in a temporary assembly step and greatly reduces the amount of vaporized brazing material dispersed into the vacuum chamber of the interrupter in a vacuum brazing step. Thus, the interrupter is provided with improved dielectric strength.