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:
May. 23, 2011
Filed:
Oct. 08, 2003
Heinz-georg Wassenhoven, Monchengladbach, DE;
Claus-dieter Landolt, Monchengladbach, DE;
Heinz-Georg Wassenhoven, Monchengladbach, DE;
Claus-Dieter Landolt, Monchengladbach, DE;
Oerlikon Textile GmbH & Co. KG, Monchengladbach, DE;
Abstract
An open-end spinning frame()having a spinning rotor(), whose rotor shaft()is supported, free of axial thrust, in the bearing wedge of a support disk bearing arrangement()and is fixed in place by means of a magnetic axial bearing(). The axial bearing()has a stationary magnetic bearing component()fixed on the bearing housing(), and a rotating magnetic bearing component()arranged at the end of the rotor shaft and having at least two annular shoulders()defined by recesses()in the rotor shaft(). The sharpness of the annular shoulders()is reduced in the area between their outer circumference()and the adjoining radial faces()of each annular shoulder, e.g., via curved or beveled surfaces in such area, and the base surfaces()of the recesses()are each connected via rounded sections()with the radial faces()of the adjoining annular shoulders().