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. 09, 1986
Filed:
Jan. 22, 1985
Hans Ebersberger, Kotzenaurach, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
An x-ray tube has a rotary anode which is seated in a magnetic bearing unit which includes catcher bearings for supporting the anode system if the magnetic bearing is turned off or malfunctions. For this purpose the drive shaft of the rotary anode has a substantially conical surface carried thereon which is symmetrical with respect to the rotational axis of the shaft. The conical surface receives the catcher bearings therein with a gap existing between the bearings and the surface during normal operation, and in the event of failure of the magnetic bearing system, functions as a contact surface to limit movement of the shaft and hence of the anode. The conical surface may be formed by two inwardly chamferred rings carried on the shaft with the catcher bearing disposed between the facing chamferred edges. The catcher bearing may be chamferred in a complementary manner and may have a ball bearing assembly therein.