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. 22, 2008
Filed:
Dec. 20, 2002
Arthur A. Chaves, Sandy, UT (US);
Arthur A. Chaves, Sandy, UT (US);
Varian Medical Systems, Inc., Palo Alto, CA (US);
Abstract
An x-ray transmissive housing window for reducing non-uniform attenuation of x-rays in a rotationally driven x-ray device is disclosed. The x-ray tube is disposed within an interior portion of an outer housing that is filled with cooling fluid. An x-ray beam produced by the tube passes through the housing window, which is disposed in a port defined in the outer housing. The housing window includes a convexly shaped inner surface adjacent the cooling fluid. The shape of the window's inner surface cooperates with centripetal and other dynamic forces within the x-ray device to act on bubbles that form in the cooling fluid and attach to the window's inner surface. These forces create a moving force that acts on the bubbles at the housing window inner surface. The convex curvature of the inner surface enables the dynamic forces to displace the bubbles from the x-ray beam transmission region of the housing window.