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. 21, 2004
Filed:
Apr. 21, 2003
Christian Beyer, Köln, DE;
Heinrich Engländer, Linnich, DE;
Josef Hodapp, Köln-Sülz, DE;
Leybold Vakuum GmbH, Köln, DE;
Abstract
A magnetic bearing for rapidly rotating machines ( ), in particular, for turbo compressors, drag vacuum pumps, or similar, includes two bearings ( ), each with a stator magnetic-ring set ( ) and a rotor magnetic-ring set ( ). Movement of the rotor is damped by magnetic-ring sets ( ) arranged concentrically to each other. The stator magnetic-ring set ( or ) is arranged externally and the rotor magnetic-ring set ( or ) is arranged internally. Non-magnetic elements with good electrical conducting properties ( ) are connected to the outer circumference surfaces of at least one part of the magnetic ring of each of the stator-side magnetic-ring sets ( ).