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:
May. 26, 1981
Filed:
Mar. 24, 1978
Applicant:
Inventor:
Masami Kii, Amagasaki, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Amagasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
2001 / ; 2001 / ; 2001 / ;
Abstract
A circuit interrupter comprises a pair of contacts which can be relatively moved to be detouchable in a fluid for arc extinction; a pressure chamber which is connected to an arc space to contain the fluid for arc extinction whose pressure is raised in the arc space; and a fluid passage which is closed until moving one contact for a specific distance and is opened to discharge the fluid in the pressure chamber through the arc space out of the pressure chamber after departing the contact for the specific distance whereby the arc extinction is performed by the puffing of the fluid.