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:
Aug. 19, 1980
Filed:
Mar. 23, 1979
Applicant:
Inventors:
James F Bedard, Schenectady, NY (US);
William C Hughes, Scotia, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 17 ; 315384 ; 313439 ;
Abstract
Shifting of the electron beam emitted from an electron gun is eliminated by placement of deflection electrodes between the electron gun anode and object electrode, whereby the electron beam, during blanking, is deflected away from the electron gun central axis and caused to totally impinge upon blanking and spray electrodes. For deflections less than the deflection required for total blanking, the electron beam is diminished in intensity but is not moved in position from the central gun axis.