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. 25, 1984
Filed:
Sep. 29, 1982
Applicant:
Inventors:
George N Steinberg, Westport, CT (US);
W Derek Buckley, Easton, CT (US);
Assignee:
The Perkin-Elmer Corporation, Norwalk, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
315 98 ; 313342 ; 315 99 ; 315334 ;
Abstract
Disclosed herein is an electron emitter assembly for an electron gun which includes a first emitter ring, a second emitter ring, a power supply, connectors for connecting the power supply to the two electron emitter rings so that heating current flows from the power supply through the rings, and said rings being mounted so that a magnetic field formed by the second ring counteracts the magnetic field formed by the first ring.