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:
Jan. 09, 2018
Filed:
Jul. 24, 2014
Applicant:
Abb Technology Ag, Zürich, CH;
Inventors:
Lukas Zehnder, Baden-Dättwil, CH;
Erwin Manz, Lauchringen, DE;
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 33/82 (2006.01); H01H 33/74 (2006.01); H01H 33/91 (2006.01); H01H 33/56 (2006.01); H01H 33/90 (2006.01);
U.S. Cl.
CPC ...
H01H 33/82 (2013.01); H01H 33/56 (2013.01); H01H 33/74 (2013.01); H01H 33/91 (2013.01); H01H 2033/906 (2013.01); H01H 2033/908 (2013.01); H01H 2239/072 (2013.01);
Abstract
The invention relates to a circuit breaker that can be switched between an ON position and an OFF position, such that in the OFF position an interruption path comprising an arcing space is formed. The circuit breaker comprises a storage volume for a quenching gas, which is in gaseous communication with the arcing space and has an inlet port for the quenching gas. The inlet port also has a valve comprising an obturator, and the obturator has a heat-insulating coating.