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. 12, 2005
Filed:
Jul. 12, 2001
Applicants:
Wolfgang Amrhein, Ottensheim, AT;
Siegfried Silber, Kirchschlag, AT;
Inventors:
Wolfgang Amrhein, Ottensheim, AT;
Siegfried Silber, Kirchschlag, AT;
Assignee:
Levitronix LLC, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K007/09 ;
U.S. Cl.
CPC ...
Abstract
The invention relates to an economical, non-wearing, electrical permanent magnet drive for actively controlling the rotor position in three degree of freedom. The stator windings produce superimposed fields with different pole numbers in the pole pitches by unsymmetrical magnetomotive force distributions.