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:
Apr. 21, 2009
Filed:
Jan. 05, 2005
Qing Kelvin LU, Aurora, IL (US);
Allan D. Kautz, Naperville, IL (US);
Xiaopo MA, Naperville, IL (US);
Qing Kelvin Lu, Aurora, IL (US);
Allan D. Kautz, Naperville, IL (US);
Xiaopo Ma, Naperville, IL (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
An x-ray tube assembly () includes a cathode housing () which has a neck connected to a frame () of the x-ray tube assembly. An anode () is positioned within an evacuated chamber defined by the frame. To reduce overheating of the neck by backscattered electrons, a cooling collar (″) is positioned around the neck of the cathode housing. Cooling fluid enters the collar through a fluid inlet tube (″). A cover member (″) of the collar includes a wall (″) which defines an aperture (″) sized for receiving the neck of the cathode housing. Cooling fluid flows around an interior annular flow path (') defined within the cover member and leaves the cover member through the aperture or associated notches. In this way, stagnation of the flow is minimized.