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:
Apr. 24, 1990
Filed:
Feb. 06, 1989
Applicant:
Inventor:
Edward J Schaefer, Bluffton, IN (US);
Assignee:
Franklin Electric Co., Inc., Bluffton, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
29598 ; 29736 ;
Abstract
This disclosure relates to a method and apparatus for assembling a rotor for a rotating electric machine, the rotor including a plurality of permanent magnet segments, and an outer sleeve or cylinder. A thin-walled metal cylinder is fashioned and arcuate magnet segments are positioned in angularly spaced relation against the interior surface of the cylinder. The segments are displaced radially outwardly to stretch or expand the outer cylinder, and the segments are then supported in the outwardly displaced positions. The segments may be displaced by a variety of devices including an expanding mandrel, a tapered part of a shaft and a tapered ring.