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:
Nov. 13, 1984
Filed:
Mar. 23, 1982
Applicant:
Inventors:
Benno Doemen, St. Georgen, DE;
Rolf Muller, St. Georgen, DE;
Assignee:
Papst-Motoren GmBH & Co., K.G., St. Georgen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
318254 ; 318254 ; 318138 ;
Abstract
A method and device are provided for substantially reducing the effect of a low frequency varying torque resulting from a characteristic asymmetric switching of a magnetic flux-sensitive control member when the control member is used to sense the rotating position of a rotor in a brushless d.c. motor.