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:
Dec. 04, 2018
Filed:
Aug. 26, 2016
Saimaan Ammattikorkeakoulu Oy, Lappeenranta, FI;
Juha Pyrhonen, Lappeenranta, FI;
Juho Montonen, Lappeenranta, FI;
Simo Sinkko, Lappeenranta, FI;
Tommi Nummelin, Lappeenranta, FI;
SAIMAAN AMMATTIKORKEAKOULU OY, Lappeenranta, FI;
Abstract
A magnetic actuator includes a collar element () and a toroidal coil () surrounding the collar element. The collar element is coupled in a torque transferring way to a shaft () surrounded by the collar element. The collar element is capable of sliding in the axial direction with respect to the shaft. The collar element includes indentations () for locking in a torque transferring way to a counter-part when the collar element is in a first axial position. The collar element includes permanent magnet material () for generating an axial force for moving the collar element to the first axial position when the toroidal coil carries electric current flowing in a first direction and to a second axial position when the toroidal coil carries electric current flowing in an opposite direction. Thus, no mechanical elements are needed for moving the collar element in the axial direction.