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.
Patent No.:
Date of Patent:
Apr. 04, 2006
Filed:
Dec. 09, 2002
Michael Grant, Chicago, IL (US);
Ovidiu Marin, Lisle, IL (US);
Erwin Penfornis, Oak Park, IL (US);
William A. Von Drasek, Oak Forest, IL (US);
Michael Grant, Chicago, IL (US);
Ovidiu Marin, Lisle, IL (US);
Erwin Penfornis, Oak Park, IL (US);
William A. Von Drasek, Oak Forest, IL (US);
American Air Liquide, Inc., Fremont, CA (US);
Abstract
A method and apparatus for monitoring the flue gases of a furnace combustion process is disclosed. A by-pass circuit that communicates a sample of flue gases to be monitored from a furnace, through a measurement chamber and back to the furnace or furnace exhaust duct is provided. The by-pass circuit has a gas sampling probe with a fume inlet opening, the probe being positioned for withdrawing the sample to be monitored and transmitting it through the by-pass circuit. A measurement device is positioned in the measurement chamber and comprises an in situ optical device which provides real-time measurement of targeted flue gas species concentrations.