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:
Mar. 15, 2011
Filed:
Jun. 22, 2005
Alexander Steffens, Langenfeld, DE;
Dietmar Gentsch, Bochum, DE;
Kaveh Niayesh, Tehran, IR;
ABB Research Ltd., Zurich, CH;
Abstract
The invention relates to a contact arrangement for a vacuum interrupter chamber (), which comprises a pair of inner contact pieces (), configured as RMF contact pieces, and a pair of outer contact pieces () which are connected in parallel and are mounted closely adjacent to the inner contact pieces (). At least one of the inner contact pieces () is movably mounted. The outer contact pieces () are also configured as RMF contact pieces. During interruption, the resulting electric arc can commutate completely or partially to the pair of outer contact pieces (). The inner contact pieces are substantially discoid. Advantageously, the contact pieces () are coaxially positioned in relation to each other. The outer contact pieces () are advantageously pot-shaped or tubular.