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. 03, 2001
Filed:
Mar. 29, 1999
Applicant:
Inventors:
Quan N. Lu, San Jose, CA (US);
Stephen W. Gravelle, Mequon, WI (US);
Stephen S. Waite, Milwaukee, WI (US);
Assignee:
General Electric Company, Milwaukee, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 3/506 ;
U.S. Cl.
CPC ...
H01J 3/506 ;
Abstract
A rotating x-ray tube comprises an anode assembly having an anode target for distributing heat generated at a focal spot. The x-ray tube further comprises a cathode assembly for producing X-rays upon impact with the anode. A target angle matching cathode cup structure is associated with the cathode assembly. The angled cathode cup structure creates a parallel surface between the cathode and the target to provide a focused electron beam.