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:
Sep. 16, 2003
Filed:
Apr. 05, 2002
Applicant:
Inventor:
Eberhard Lenz, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Münich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/510 ;
U.S. Cl.
CPC ...
H01J 3/510 ;
Abstract
A fluid-cooled x-ray tube has a closed coolant circuit in which coolant circulates for the elimination of the generated heat. In order to improve the cooling capacity, micro-capsules are added to the coolant that contain a phase-change material (PCM). The micro-capsules have a size of approximately 5 &mgr;m through 20 &mgr;m in diameter.