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. 22, 2007
Filed:
Jun. 15, 2005
Tudor Baiatu, Brugg, CH;
Tudor Baiatu, Brugg, CH;
ABB Schweiz AG, Baden, CH;
Abstract
The present invention specifies an arc quenching device having improved current limitation and reduced heat losses, in the case of which a moving contact piece () is not subject to increased erosion and wear. For this purpose, a quenching path according to the invention is provided which takes over an arc from said contact piece () and comprises arc guide rails (), a quenching chamber () and a current-limiting element (). Based on circuit breakers with double interruption, the current-limiting element () is preferably provided between arc guide rails () of a second contact point and provided with a blowing section () for additional magnetic blowing of the arc of the first contact point.