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. 29, 1981
Filed:
Jan. 23, 1979
Applicant:
Inventors:
Assignee:
Compagnie Generale de Radiologie, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313 56 ; 3134 / ; 313413 ;
Abstract
A multiple cathode X-ray tube for densitometers. This tube contains an anode assembly functioning by transmission, which is arranged along the sides of a regular convex polygon, with several cathodes, each of which sweeps one side of the polygon and a collimation device with several openings placed in front of the anode assembly to produce a series of fine, parallel and coplanar beams, the number of beams being equal to the number of openings. Such a tube makes very fast tomography possible.