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.

Date of Patent:
Feb. 05, 2013

Filed:

Dec. 26, 2007
Applicants:

Guenter F. Voss, Much, DE;

Anthony N. Duryea, Cheswick, PA (US);

Inventors:

Guenter F. Voss, Much, DE;

Anthony N. Duryea, Cheswick, PA (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A ring magnet assembly has a generally cylindrical magnet body defining an air gap having an upper end and a lower end. Upper and lower face plates dispose respectively at an upper portion of the ring magnet and lower portion of the ring magnet. The face plates preferably have a high magnetic permeability. A mass analyzer may be disposed within the air gap. An ion generator may be disposed within an air gap of a ring magnetic assembly of the present invention. A pair of vertically-stacked magnetic ring assemblies may be provided. In that embodiment, a mass analyzer may be disposed within one air gap and an ion generator within another.


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