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:
Aug. 28, 1987
Klaus Albrecht, Konigsfeld, DE;
Helmut Hans, St. Georgen, DE;
Johann von der Heide, Schramberg, DE;
Fritz Schmider, Hornberg, DE;
Papst-Motoren GmbH & Co. KG, Black Forest, DE;
Abstract
A step motor which, in addition to an exciter system for step-by-step movement, is provided with an axial exciter system. As a result of the direct or indirect influence of the magnetic field generated by the secondary exciter system on the rotor which is supported, so as to be able to move in an axial direction with respect to the stator, the rotor can be induced to move in a direction perpendicular to its step-by-step rotary motion, as well. Both exciter systems can be energized independently of one another, so that step-by-step rotary movement can be performed at any axial position of the rotor and the rotor can be made to move in an axial direction during its rotary movement as well as when it is at rest.