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:
Dec. 11, 2007
Filed:
Mar. 28, 2003
Johan K. Fremerey, Bonn, DE;
Matthias Lang, Zittau, DE;
Johan K. Fremerey, Bonn, DE;
Matthias Lang, Zittau, DE;
Forschungszentrum Julich GmbH, Julich, DE;
Abstract
The invention concerns a magnetic guiding device () having at least one element () to be guided magnetically in the axial direction, e.g. a shaft or an actuation member that is movable in the axial direction, the element () having a radial flange () made of magnetizable material that is enclosed by an axial yoke () made of ferromagnetic material and constituting a stator, forming magnet gaps () in which is producible, by means of a combination of permanent magnets and electromagnets (), an axial magnetic flux with which the axial position of the element () can be influenced, which is characterized in that in the axial yoke (), at least one pair of axially oppositely polarized permanent magnets () are arranged axially next to one another, and an electromagnetic coil () is moreover arranged radially adjacently as an electromagnet, the magnetic flux in the coil () being controllable in such a way that an asymmetrical magnetic flux having an axial resultant force is producible in the magnet gaps ().