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. 20, 2024

Filed:

Feb. 15, 2022
Applicant:

Perkinelmer Scientific Canada Ulc, Woodbridge, CA;

Inventors:

Tak Shun Cheung, Woodbridge, CA;

Chui Ha Cindy Wong, Woodbridge, CA;

Hamid R. Badiei, Woodbridge, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/06 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/062 (2013.01); H01J 49/063 (2013.01); H01J 49/42 (2013.01);
Abstract

An ion guide includes a plurality of curved electrodes arranged along a curved central axis. The plurality of electrodes define a curved ion guide region, with the curved ion guide region beginning at an ion entrance and ending at an ion exit. The ion guide includes an ion deflecting device configured to apply a radial DC electric field across the ion guide region and along the curved central axis. The ion guide region has a radius of curvature that varies along the curved central axis, and the radius of curvature is at a maximum at the ion entrance and decreases along the curved central axis toward the ion exit.


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