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:
Jun. 09, 1992
Filed:
May. 06, 1991
Applicant:
Inventor:
Kenneth H Purser, Lexington, MA (US);
Assignee:
High Voltage Engineering Europa B.V., Amersfoort, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; B01D / ;
U.S. Cl.
CPC ...
250281 ; 250282 ; 3133601 ; 328233 ;
Abstract
Backgrounds of AMS measurements are reduced by eliminating unwanted charged particles which undergo charge change during the acceleration process. This reduction is accomplished by a configuration of inclined electric fields throughout the acceleration region.