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:
Feb. 22, 2011
Filed:
May. 21, 2007
Gunther Eckert, Maxhütte-Haidhof, DE;
Winfried Vierling, Neutraubling, DE;
Christoph Weber, Ergoldsbach, DE;
Gunther Eckert, Maxhütte-Haidhof, DE;
Winfried Vierling, Neutraubling, DE;
Christoph Weber, Ergoldsbach, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
In line circuit breakers with a combined overcurrent/short-circuit current tripping device, tripping should take place in a well defined manner in the case of an overcurrent and in the case of a short-circuit current. For this purpose, gaps (A, B) need to be set precisely. If the housing is made from a cost-effective housing material such as thermosetting plastic it is subject to shrinkage. As a result, the mentioned gaps may change. An armature () is mounted in such a way that it changes its rest rotary position in the event of shrinkage of the housing. A magnet yoke () as part of the overcurrent/short-circuit current tripping device is mounted and shaped in such a way that the rotation is compensated for precisely, so that the mentioned gaps do not change despite the shrinkage.