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. 23, 1986
Filed:
Aug. 24, 1984
Applicant:
Inventors:
Gunter Wrobel, Villingen, DE;
Ulrich Koletzki, St. Georgen, DE;
Assignee:
Papst-Motoren GmbH & Co. KG, St. Georgen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 90 ; 310 / ;
Abstract
A construction is provided for reducing axial rotor oscillations in a small electric motor having a stator, a rotor, a shaft and sleeve bearings having end faces, the sleeve bearings journalling the shaft. The construction includes a rotation element having a sliding surface at one of its axial ends, a spring element urging the sliding surface in sliding contact with a face of the adjacent sleeve bearing and a driving connection for rotating the rotation element in synchronism with the motor shaft during rotation thereof.