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:
Jun. 04, 1985
Filed:
Apr. 14, 1983
Hajimu Yoshiyasu, Itami, JP;
Shirou Murata, Itami, JP;
Fumiyuki Hisatsune, Fukuyama, JP;
Shinji Yamagata, Fukuyama, JP;
Junichi Terachi, Fukuyama, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to a circuit breaker with an arc light absorber comprising: a pair of electric contactors contained in an insulating container for opening or closing an electric circuit, electric conductors forming said electric contactors and contacts provided at said conductors, an arc extinguishing plate for extinguishing an arc produced between said contacts when said electric contactors are opened, and a pair of side walls confronting the portion except the locuses drawn by said contacts when said contactors are opened and closed at the position of the arc extinguishing plate side of said locuses to form an arc light absorber, said side walls formed of a composite material having one or more of fiber, net or porous material having more than 35% of porosity and the arc produced between said contacts being discharged through between said pair of confronting side walls.