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:
Oct. 25, 2016
Filed:
Nov. 18, 2014
Abb Technology Ag, Zürich, CH;
Christian Reuber, Willich, DE;
ABB Schweiz AG, Baden, CH;
Abstract
An actuator for a switchgear is disclosed, which can include a core having a package of core element layers made of magnetic material, and permanent magnets between the core elements, fixed with screws with screwheads. A movable plate is configured to open or close a magnetic circuit to the core, and an electromagnetic coil is surrounded by the core elements. To avoid mechanical infringement of the environment of the actuator by prominent screwheads, without weakening the magnetic force, screws for mechanical connection of the core element layers and the permanent magnets can be oriented perpendicular to the plane of stacking of the core element layers, and screw-holes for the screws can be implemented through the core element layers and the permanent magnets, and the screw-holes can end in diameter extended openings, so that the screwheads and/or the screwnuts are recessed into the diameter extended openings.