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:
Apr. 20, 1976
Filed:
Nov. 18, 1974
Applicant:
Inventors:
Paul D Reader, Fort Collins, CO (US);
Harold R Kaufman, Fort Collins, CO (US);
Assignee:
Ion Tech, Inc., Fort Collins, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05H / ;
U.S. Cl.
CPC ...
3151118 ; 60202 ; 3151 / ; 315260 ;
Abstract
An ion source includes apparatus that defines a region in which a supply of ions are produced. An apertured grid is disposed at one end of the region. A potential difference is impressed between the grid and the region so as to accelerate ions out of the region through the grid as a plurality of beamlets, the grid serving to focus those beamlets. To cyclically vary the degree of focus of the beamlets, the system as embodied further includes an arrangement for alternating a potential on the grid relative to a potential elsewhere in the ion source and to which the ions are subjected.