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:
Jun. 09, 2009
Filed:
Jul. 24, 2006
Applicant:
Thomas Drexlmaier, Würzburg, DE;
Inventor:
Thomas Drexlmaier, Würzburg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/30 (2006.01); H02K 1/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
A permanent magnet rotor for a brushless electrical machine has a rotor shaft and a cylindrical plastic cage. Permanent magnets are inserted in this plastic cage. The plastic cage has dovetailed retainers. The permanent magnets are trapezoidal in shape and are inserted so as to fit tightly in the dovetailed retainers.