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:
Mar. 02, 1982
Filed:
May. 12, 1980
Applicant:
Inventor:
Jerg B Jergenson, Santa Barbara, CA (US);
Assignee:
Hughes Aircraft Company, Culver City, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
31511181 ; 2504 / ; 313232 ; 3133621 ;
Abstract
Liquid metal ion source has cylindrical ceramic body 12 engaged by one leg of hook shaped strip heater 20 which is held in place by ceramic bushing 24. Apex 18 of the strip heater contains the ion source fuel metal and is pierced by needle 22 having sharp tip 30. Upon heating by heater current flow through needle 22 and heater leg 14 and electrical bias with an extraction electrode, tip 30 emits ions.