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:
Mar. 03, 2015
Filed:
Sep. 19, 2011
Pieter Johannes Bax, Eindhoven, NL;
Johannes Hotze Bernhard DE Vries, Eindhoven, NL;
Jurriaan Bernhard Rudolf Leveling, Eindhoven, NL;
Gert Westrup, Eindhoven, NL;
Sepas Setayesh, Eindhoven, NL;
Folkert Vrijburg, Eindhoven, NL;
Pieter Johannes Bax, Eindhoven, NL;
Johannes Hotze Bernhard De Vries, Eindhoven, NL;
Jurriaan Bernhard Rudolf Leveling, Eindhoven, NL;
Gert Westrup, Eindhoven, NL;
Sepas Setayesh, Eindhoven, NL;
Folkert Vrijburg, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
A magnetic actuator system which includes a case () and a spindle () which extends through the case comprising a magnetizable material such as iron. The actuator further includes a pair of permanent magnet assemblies () positioned fixedly within the casing with a longitudinal space there between, wherein the permanent magnet assemblies comprise an alternating plurality of north pole/south magnet sections () which extend longitudinally or circumferentially of the actuator. The actuator further includes a coil winding () which surrounds the spindle, positioned between the two permanent magnet assemblies. Magnetic pole assemblies () attached to the spindle are positioned within the volume encompassed by the permanent magnet assemblies, such that an alternating drive signal produces an oscillating action of the spindle of desired frequency and amplitude.