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:
May. 22, 2007
Filed:
Dec. 08, 2005
Applicants:
Günter Heidrich, Gerhardshofen, DE;
Wolfgang Kutschera, Aurachtal, DE;
Matthias Seufert, Pettstadt, DE;
Inventors:
Günter Heidrich, Gerhardshofen, DE;
Wolfgang Kutschera, Aurachtal, DE;
Matthias Seufert, Pettstadt, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 35/10 (2006.01); H01J 35/12 (2006.01); F28D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In an expansion device for an x-ray apparatus, in particular with a rotary piston x-ray tube with a sealed coolant and/or insulation volume under a minimum pressure and pressing with this minimum pressure against an elastic pressure element, an elastic pressure element with a linear force-displacement characteristic curve (in particular in the form of a gas pressure spring with a linear elastic characteristic curve) is provided to prevent an excessive pressure load given a temperature rise.