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:
Aug. 09, 2005
Filed:
Aug. 27, 2001
Per Olof Thuresson, Grängesberg, SE;
Lars Hermansson, Västerås, SE;
Tomas Roininen, Saxdalen, SE;
Stefan Valdermarsson, Västerås, SE;
Per Olof Thuresson, Grängesberg, SE;
Lars Hermansson, Västerås, SE;
Tomas Roininen, Saxdalen, SE;
Stefan Valdermarsson, Västerås, SE;
ABB AB, Västerås, SE;
Abstract
The invention relates to a circuit breaker, preferably for high or medium voltage. The movable conact of each breaker pole is connected, via mechanical means for transmitting movement, to a movable part of an electric motor (). The movable contact and the means for transmitting movement are arranged in a gas-tight apparatus chamber () surrounded by a gas-tight apparatus housing () of insulating material such as porcelain. In accordance with the invention the motor () is arranged entirely in the apparatus chamber (). The invention also relates to an electric plant provided with the breaker claimed, uses of the breaker claimed and a method of breaking electric current in which the breaker claimed is used.