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. 10, 1979
Filed:
Jul. 27, 1977
Applicant:
Inventor:
Robert J Froggatt, Southall, GB;
Assignee:
E M I Limited, Hayes, GB;
Primary Examiner:
Int. Cl.
CPC ...
H05G / ;
U.S. Cl.
CPC ...
250402 ; 2504 / ; 250385 ;
Abstract
In order to monitor the progress of a deflected electron beam across the target of an X-ray tube, the emitted X-radiation is monitored, by allowing radiation to impinge, via a common aperture, upon two or more radiation sensitive detectors, to produce a progress signal which is compared with an ideal progress signal to generate error signals in the event of departure of the monitored progress from the ideal progress.