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:
Apr. 04, 2017
Filed:
Nov. 13, 2012
Moving Magnet Technologies (Mmt), Besançon, FR;
Sébastien Heinrich, Herimoncourt, FR;
MOVING MAGNET TECHNOLOGIES (MMT), Besançon, FR;
Abstract
A display module has a two-phase motor which includes a rotor including N pairs of poles magnetized radially, in alternate directions, N being equal to 3 or 5, and a stator part including at least two W-shaped circuits made from radial pole teeth extending inwards from a peripheral closed belt and including a coil on a central leg of the W, the W-shaped circuits being arranged in such a way that when the central tooth of one of the W-shaped circuits is positioned facing a rotor magnetic transition, at least one central tooth of another W-shaped circuit is positioned facing a rotor magnetic pole. The display module additionally includes at least one specific mechanical interaction between the rotor and the stator, such as angular friction at a force that is substantially constant depending on the speed of the rotor relative to the stator.