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:
Jul. 05, 2005
Filed:
Mar. 07, 2003
Christian Beyer, Köln, DE;
Heinrich Engländer, Linnich, DE;
Josef Hodapp, Köln-Sülz, DE;
Leybold Vakuum GmbH, Cologne, DE;
Abstract
The invention relates to a magnetic bearing having a fixed first bearing portion and a movable second bearing portion which is contactlessly supported on the first bearing portion. The first bearing portion () comprises a magnetic coil () generating a magnetic field and having a yoke (). The second bearing portion () comprising a permanent magnet () which is magnetized in alignment with the yoke (). The permanent magnet of the second bearing portion has an attracting effect upon the yoke of the first bearing portion. To avoid this, the first bearing portion is provided with a permanently magnetized compensation magnet () which is located opposite the permanent magnet () of the second bearing portion () and is magnetized oppositely to the permanent magnet ().