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. 05, 2021
Filed:
Aug. 25, 2017
Fondazione Istituto Italiano Di Tecnologia, Genoa, IT;
Fondazione Istituto Italiano di Tecnologia, Genoa, IT;
Abstract
An electromagnetic actuator comprising a moving armature () comprising a pin () and a permanent magnet arrangement () arranged coaxially with the pin () and secured to it, and an excitation coil arrangement () arranged coaxially with the pin (). The coil arrangement () is suppliable with a current to cause a movement of the movable armature (). The actuator further comprises a surface () of ferromagnetic material. The permanent magnet arrangement () is axially interposed between the surface () of ferromagnetic material and the excitation coil arrangement (). The permanent magnet arrangement () comprises a plurality of permanent magnet regions () arranged around the pin () of the moving armature (), wherein each permanent magnet region () has a polarity opposite to the polarities of the permanent magnet regions () angularly adjacent thereto. The excitation coil arrangement () comprises a coil having a lobed shape.