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:
Feb. 29, 2000
Filed:
Apr. 26, 1999
Applicant:
Inventors:
Assignee:
Michael Zoche Antriebstechnik, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310211 ; 310216 ; 29598 ; 29609 ;
Abstract
A squirrel cage rotor includes a cage, lamination sheets provided with a plurality of slots, and short circuit rings arranged at the axial ends of said lamination sheets and connected by short circuit rods disposed within said slots. In one aspect, said lamination sheets comprise sheets made of an amorphous magnetic material, especially of an amorphous metal with high saturation magnetization. In another aspect, said slots are formed with a convex base portion. In a further aspect, said short circuit rings are made of a metal matrix composite material with high electrical conductivity, preferably of a fiber reinforced aluminum matrix composite material.