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:
Jul. 30, 2002
Filed:
Mar. 31, 2000
X-ray tube with warning device for accurately indicating impending failure of the thermionic emitter
Applicant:
Inventors:
Manfred Fuchs, Nuremberg, DE;
Erich Hell, Erlangen, DE;
Markus Schild, Erlangen, DE;
Detlef Mattern, Erlangen, DE;
Peter Schardt, Aisch, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05G 1/54 ;
U.S. Cl.
CPC ...
H05G 1/54 ;
Abstract
The invention concerns an x-ray tube having a thermionic emitter and a warning means, which exhibits means for measuring as least one electrical property of the thermionic emitter and produces a signal during analysis of the measured electrical property, if the measured electrical property shows a value indicating an impending failure of the thermionic emitter.