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:
Jul. 07, 2015
Filed:
Sep. 05, 2012
Applicants:
Radu-marian Cernat, Berlin, DE;
Volker Lehmann, Treuenbrietzen, DE;
Andrzej Nowakowski, Berlin, DE;
Inventors:
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H 33/04 (2006.01); H01H 33/70 (2006.01); H01H 33/91 (2006.01); H01H 33/66 (2006.01); H01H 3/60 (2006.01); H01H 9/52 (2006.01); H01H 33/88 (2006.01);
U.S. Cl.
CPC ...
H01H 33/04 (2013.01); H01H 33/66 (2013.01); H01H 3/60 (2013.01); H01H 33/7015 (2013.01); H01H 33/91 (2013.01); H01H 2009/526 (2013.01); H01H 2033/888 (2013.01);
Abstract
A power circuit breaker unit has first and second arcing contact pieces. A contact gap is formed between the arcing contact pieces. A switch gas channel of the circuit breaker unit joins the contact gap to the surrounding area of the circuit breaker unit for removing a switch gas from the contact gap. Several barriers that increase a flow resistance are arranged successively, spaced from one another, in the switch gas channel. At least one of the barriers is arranged between a first pipe section, which is surrounded by a second pipe section, and the second pipe section.