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:
Jan. 20, 1981
Filed:
Apr. 04, 1978
Applicant:
Inventors:
Satoru Yanabu, Yokohama, JP;
Tohoru Tamagawa, Chigasaki, JP;
Shigeo Souma, Tokyo, JP;
Takumi Funahashi, Yokohama, JP;
Hiroyuki Okumura, Chigasaki, JP;
Nobuyuki Takahashi, Kawasaki, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ;
Abstract
In a vacuum interrupter of the type comprising a vacuum vessel and a pair of separable main electrodes located in the vacuum vessel, at least one of the main electrodes being provided with a coil electrode for generating an axial magnetic field, the vacuum interrupter further comprises a flat annular intermediate electrode disposed between the main electrodes and provided with an opening at its center through which one of the main electrodes passes.