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:
Jul. 06, 1982
Filed:
Aug. 21, 1978
Applicant:
Inventor:
Horst Grafenschnell, Bad Neustadt, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310154 ; 310258 ;
Abstract
An electric machine without pole pieces excited by permanent magnets is disclosed in which the stator of the machine comprises a yoke frame of angular outside shape having an even number of corners which exceeds 2 and of circular inside shape. The yoke frame forms the magnetic return and arc-shaped permanent magnets corresponding to the inside shape of the yoke frame are fastened in the inside of the yoke frame with lateral spaces therebetween, the magnets being centrally disposed between respective corners of the frame.