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:
May. 06, 2003
Filed:
May. 10, 2001
Applicant:
Inventor:
Reto Schöb, Volketswil, CH;
Assignee:
Levitronix LLC, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/09 ;
U.S. Cl.
CPC ...
H02K 7/09 ;
Abstract
An electromagnetic rotary drive, designed as bearingless motor, is proposed which comprises a magnetically journalled rotor ( ) and a stator ( ) which comprises a drive winding for producing a magnetic rotary drive field which produces a torque on the rotor ( ), and a control winding for producing a magnetic rotary control field by means of which the position of the rotor ( ) with respect to the stator ( ) can be regulated, with the stator ( ) having exactly six stator teeth ( ).