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:
Feb. 11, 1997
Filed:
Jan. 23, 1996
Axel Vetter, Hamburg, DE;
Leo P Tielemans, Eersel, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A rotary-anode X-ray tube, include a sleeve bearing which serves to journal the rotary anode which sleeve bearing has a stationary bearing portion and a bearing portion which is rotatable about an axis of rotation. The two bearing portions cooperate with one another via a lubricant and have bearing surfaces which extend perpendicularly to the axis of rotation in order to take up axial bearing forces. The bearing surfaces changes over into external surfaces which form a lubricant gap between the bearing portions and one of which is provided with a groove pattern. In order to maintain the bearing capacity of this bearing also for forces acting in the axial direction, even under unfavorable operating conditions, the external surface of the rotatable bearing portion which bounds the lubricant gap has a cross-section which is symmetrical with respect to the axis of rotation whereas the cross-section of the external surface of the stationary bearing portion which bounds the lubricant gap is non-symmetrical with respect to the axis of rotation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile