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. 09, 2010

Filed:

Sep. 28, 2006
Applicants:

Bret R. Warrick, Grants Pass, OR (US);

Geoffrey Wilson, Rogue River, OR (US);

Richard Defreez, Azalea, OR (US);

Michael M. Carrabba, Rogue River, OR (US);

Inventors:

Bret R. Warrick, Grants Pass, OR (US);

Geoffrey Wilson, Rogue River, OR (US);

Richard DeFreez, Azalea, OR (US);

Michael M. Carrabba, Rogue River, OR (US);

Assignee:

Hach Ultra Analytics, Inc., Grants Pass, OR (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/64 (2006.01);
U.S. Cl.
CPC ...
Abstract

An integrated particle detection apparatus for optical detection of particles in an air stream. The particle detection apparatus includes a scalper for removing large particles from the air stream, a concentrator for separating out small particles and increasing the concentration of particles of interest, and a fluorescence sensor system for detecting the particles present in the air stream. The scalper, concentrator and sensor may include a single integrated unit, such that the scalper is fluidly contiguous with the concentrator and the concentrator is fluidly contiguous with the sensor.


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