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. 04, 2003
Filed:
Nov. 21, 2000
Applicant:
Inventor:
Michael R. Busky, Concord, MA (US);
Assignee:
Schlumberger Technologies Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 4/942 ; G01K 1/08 ; B23H 7/10 ;
U.S. Cl.
CPC ...
H01J 4/942 ; G01K 1/08 ; B23H 7/10 ;
Abstract
A process for manufacturing an electrostatic element for steering a charged particle beam. A cylindrical, non-conductive body having a bore therethrough is assembled with a cylindrical, conductive core also having a bore therethrough and sized to fit within the bore of the body. The core is secured within the bore of the body, and then longitudinally extending slots are cut completely through the core to create pole pieces that are electrically isolated from each other.