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. 22, 2011
Filed:
Mar. 29, 2007
Applicant:
Gilles Lacour, Belley, FR;
Inventor:
Gilles Lacour, Belley, FR;
Assignee:
Delachaux S.A., Gennevilliers, FR;
Primary Examiner:
Int. Cl.
CPC ...
H02K 5/173 (2006.01);
U.S. Cl.
CPC ...
Abstract
A magnetic coupler with hysteresis () has an inductor subassembly () and an armature subassembly () that are capable of rotating one with respect to the other. The inductor subassembly has a plurality of magnetic poles and the armature subassembly () has one or more armature permanent magnets with hysteresis (). The invention is notable in that the or each armature magnet is produced in the form of a ring of one piece in magnetic material with vertical hysteresis and has through-slots for attenuating radial currents each running in the direction of the circumferential spread of the ring. Application to limiting heating and reducing axial bulk.