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:
Jun. 23, 2026
Filed:
Feb. 01, 2024
Abb Schweiz Ag, Baden, CH;
Corrado Rizzi, Fornovo San Giovanni, IT;
Alessandro Stucchi, Dalmine, IT;
Ettore Pellegrinelli, Ponteranica, IT;
Dario Leidi, Ubiale Clanezzo, IT;
ABB Schweiz AG, Baden, CH;
Abstract
An actuation unit for a switching apparatus is provided. The actuation unit includes a rotating contact shaft coupled to the movable contacts of the switching apparatus and first mechanical actuation means coupled to the contact shaft and configured to actuate the contact shaft during a closing maneuver of the switching apparatus. The first mechanical actuation means include a spring assembly, a first lever member coupled to the spring assembly and a plurality of second lever members coupling the first lever member to the contact shaft. The first mechanical actuation means include a rotating cam assembly including one or more cam members couplable to the first lever member of the first mechanical actuation means. The actuating unit includes a brake member for reducing the rotational speed of the cam assembly, when the cam assembly is rotating towards a rest position, during a closing maneuver of the switching apparatus.