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:
Jan. 09, 2018

Filed:

Jul. 24, 2015
Applicant:

Implant Sciences Corporation, Wilmington, MA (US);

Inventor:

Said Boumsellek, San Diego, CA (US);

Assignee:

Implant Sciences Corporation, Wilmington, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 27/62 (2006.01); H01J 49/00 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
G01N 27/62 (2013.01); H01J 49/0009 (2013.01); H01J 49/0013 (2013.01); H01J 49/42 (2013.01); H01J 49/4215 (2013.01);
Abstract

A gas sensor includes a first chamber containing a plurality of evenly spaced rods having voltages applied thereto to cause gas ions in the first chamber to move in a direction from a first end of the first chamber to a second end of the first chamber and a second chamber coupled to the second end of the first chamber and having at least one ion detector, where ions pass from the first chamber to the second chamber through a plurality of channels between the first chamber and the second chamber and are detected by the at least one ion detector. The voltages applied to the rods may include a first voltage applied to a first subset of the rods and a second voltage applied to a second subset of the rods, each of first and second voltages containing a DC component and an AC component.


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