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:
Feb. 06, 2001
Filed:
Sep. 22, 1999
Applicant:
Inventor:
Joseph J. Senesi, Poughquag, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 7/02 ; G21K 1/08 ;
U.S. Cl.
CPC ...
G02B 7/02 ; G21K 1/08 ;
Abstract
A ferrite pole piece is mounted in an electromagnetic lens by placing a mounting ring around the pole piece and securing it with an adhesive. The internal diameter of the mounting ring is sufficiently greater than the outer diameter of the pole piece that the ferrite is not chipped when the mounting ring is placed around the pole piece. The pole piece, with the mounting ring secured, is inserted in a centering plate in the lens, and the mounting ring is secured to the centering plate.