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:
Nov. 09, 1993
Filed:
Dec. 10, 1992
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
378133 ; 378 93 ;
Abstract
An X-ray apparatus is provided with an operation process in which an AC voltage is applied from a power source to a magnetic stator coil so that the components of bearings are heated by magnetic induction to melt a metal lubricant in the bearings. Thus, the lubricant can be efficiently melted before starting rotation without additionally using extra components in an X-ray tube, so that the apparatus can enjoy stable operation.