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. 06, 1996
Filed:
May. 20, 1994
Applicant:
Inventors:
Bruce S Johnson, Alameda County, CA (US);
Mukul Khosla, Santa Clara County, CA (US);
John R Herron, Corvallis, OR (US);
John M Brassil, Santa Clara County, CA (US);
Alan E Schoen, Santa Clara County, CA (US);
Assignee:
Finnigan Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
250427 ;
Abstract
A filament assembly is disclosed for providing an electron beam to an ion source volume to ionize molecules or particles in the ion source volume. The filament assembly includes an electron lens which accelerates electrons emitted by the filament and focuses the electrons into a beam.