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:
Nov. 16, 2021
Filed:
Jun. 22, 2020
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Patrik Rabb, Vaasa, FI;
Rainer Kolmonen, Vaasa, FI;
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H 1/20 (2006.01); H01H 1/06 (2006.01); H01H 1/42 (2006.01); H01H 3/16 (2006.01); H01H 21/54 (2006.01); H01H 9/02 (2006.01); H01H 33/10 (2006.01);
U.S. Cl.
CPC ...
H01H 1/2041 (2013.01); H01H 1/06 (2013.01); H01H 1/42 (2013.01); H01H 3/161 (2013.01); H01H 9/02 (2013.01); H01H 21/54 (2013.01); H01H 33/10 (2013.01);
Abstract
The electrical switch includes three fixed contacts and a rotatable knife contact being connected with a permanent electrical connection to a third one of the fixed contacts and including at least one pair of longitudinal blades. The rotatable knife contact connects in a first switching position only a first one and a third one of the fixed contacts electrically together, and in a second switching position only a second one and a third one of the fixed contacts. The rotatable knife contact connects further in a zero switching position the first, the second and the third fixed contact electrically together.