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:
Sep. 20, 1983
Filed:
Oct. 26, 1981
Applicant:
Inventor:
Thomas A Nondahl, Milwaukee, WI (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310156 ; 310163 ;
Abstract
A rotor for a permanent magnet motor of the interior or embedded magnet type employs permanent magnet material in slots of two different widths in the rotor to bring the motor up to synchronous speed through hysteresis loss. During rotor rotation, the permanent magnet material in the thinner slots is driven completely about its hysteresis loop while the material in the wider slots experiences no polarity reversals.