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. 19, 1979
Filed:
Jun. 07, 1977
Udo Beeck, Erftstadt, DE;
Andreas Kluge, Cologne, DE;
Leybold-Heraeus GmbH & Co. KG, Cologne, DE;
Abstract
A method of making an ion filter having an electrically insulating body formed of at least two longitudinal parts and having metallized inner faces of generally hyperbolic cross-sectional shape, comprises the following steps: (a) making longitudinal body segments constituting the longitudinal parts; (b) grinding the longitudinal body segments to the predetermined cross-sectional shape; (c) metallizing those ground surface portions of each longitudinal body segment that are to serve in the ion filter as inner electrode faces for generating electric fields of predetermined configuration; and (d) securing, subsequent to the metallizing step, the longitudinal body segments to one another.