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. 28, 1984
Filed:
Jan. 28, 1981
Applicant:
Inventors:
Ken-ichi Natsui, Hitachi, JP;
Osamu Koyanagi, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ;
Abstract
A compressed-gas circuit interrupter includes a chamber in which SF.sub.6 gas is confined, shield members surrounding arc-extinguishing assemblages and heat transfer members connected to the shield members at their ends. Electric heaters are provided at the outside of the chamber and connected to the heat transfer members for heating the ends thereof.
Quick Actions:
Natsui, Ken-ichi. (1984). Compressed-gas circuit interrupter with a heater (U.S. Patent No. 4434335). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4434335
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile