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:
Aug. 18, 2015

Filed:

Jul. 01, 2011
Applicants:

Kenneth J. Ewing, Edgewater, MD (US);

Danielle N. Dickinson, Odenton, MD (US);

Robert Milloy, Baltimore, MD (US);

Michael R. Bracken, West Friendship, MD (US);

Inventors:

Kenneth J. Ewing, Edgewater, MD (US);

Danielle N. Dickinson, Odenton, MD (US);

Robert Milloy, Baltimore, MD (US);

Michael R. Bracken, West Friendship, MD (US);

Assignee:

Northrop Grumman Systems Corporation, Falls Church, VA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 1/22 (2006.01); G01N 35/00 (2006.01);
U.S. Cl.
CPC ...
G01N 1/22 (2013.01); G01N 1/2214 (2013.01); G01N 2035/00089 (2013.01); G01N 2035/00108 (2013.01);
Abstract

One embodiment of the invention includes an automated system for collecting analyte. The system comprises a screen supply cartridge for holding a stack of clean tabs including sorbent coated screens (SCS) residing in SCS channels. The stack of tabs are arranged such that SCS tabs directly above and/or below a given SCS tab include SCS channels offset from the SCS channel of the given tab to isolate the SCS channels from one another and the environment. The system includes an air source that provides an analyte to be adsorbed by an SCS channel of a respective tab at a sampling region and a linear actuator that moves a given clean tab into the sampling region for exposing the SCS channel of the given clean tab to the analyte and providing a given exposed tab.


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