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. 24, 2005
Filed:
Aug. 18, 2003
Hisao Kawata, Saitama, JP;
Isamu Ohshima, Kanagawa, JP;
Yoshimi Jumonji, Saitama, JP;
Katsunori Kuboyama, Saitama, JP;
Tatsunori Takahashi, Tokyo, JP;
Hisao Kawata, Saitama, JP;
Isamu Ohshima, Kanagawa, JP;
Yoshimi Jumonji, Saitama, JP;
Katsunori Kuboyama, Saitama, JP;
Tatsunori Takahashi, Tokyo, JP;
Fuji Electric Co., Ltd., Kawasaki, JP;
Abstract
A circuit breaker includes a rectangular box-shaped intermediate housing and lower housing; a power supply side fixed contact and a load side fixed contact disposed in the intermediate housing and facing each other; and a movable contact housed in the lower housing for bridging the power supply side fixed contact and the load side fixed contact. The lower housing has arc gas emission holes formed in front and rear walls thereof, and is connected to a lower part of the intermediate housing via an engagement part such that the lower housing covers the lower part of the intermediate housing. A thin wall portion is formed in each of the front and rear walls to eject arc gas by bending.