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. 06, 1981
Filed:
Mar. 24, 1978
Masami Kii, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A circuit breaker provided with an interrupter of the fluid blast type in which a gas in a chamber is increased in pressure by the arc energy in the chamber which holds the high pressure gas until a fluid path is made through openings provided in the course of circuit breaking operation of the breaker and blows the gas through the openings toward the arc drawn between contact members of the breaker for interrupting the arc. The interrupter comprises measures to prevent the pressure in the chamber from being excessively increased which otherwise would cause undesirable effects on arc quenching operation in the range of large arcing currents, while maintaining a proper fluid blast operation.