Optics: measuring and testing – For light transmission or absorption – Of fluent material
Reexamination Certificate
2006-12-22
2009-11-03
Stafira, Michael P (Department: 2886)
Optics: measuring and testing
For light transmission or absorption
Of fluent material
C356S436000
Reexamination Certificate
active
07612885
ABSTRACT:
The invention is a method and apparatus capable of detecting constituents of a gas at extremely low concentrations comprising providing a medium that is absorbent of at least a first particular gas under a first environmental condition and desorbent of the particular gas under a second environmental condition, exposing the medium to a sample gas for a first period of time under the first environmental condition, during a second period of time after the first period of time, exposing the medium to the second environmental condition to cause the medium to desorb gas into an optical cavity of a cavity ring down spectrometer and introducing electromagnetic radiation into the cavity, during a third period of time after the second period of time, ceasing introduction of the electromagnetic radiation into the cavity and detecting the decay of the electromagnetic radiation in the cavity, and analyzing the decay of the light in the cavity to obtain a spectral analysis of the sample gas.
REFERENCES:
patent: 5815277 (1998-09-01), Zare et al.
patent: 5912740 (1999-06-01), Zare et al.
patent: 6084682 (2000-07-01), Zare et al.
patent: 6094267 (2000-07-01), Levenson et al.
patent: 6233052 (2001-05-01), Zare et al.
patent: 6377350 (2002-04-01), Paldus et al.
patent: 6452680 (2002-09-01), Paldus et al.
patent: 6466322 (2002-10-01), Paldus et al.
patent: 6532071 (2003-03-01), Zare et al.
patent: 7050170 (2006-05-01), Chilese et al.
patent: 7106763 (2006-09-01), Tan et al.
patent: 7259856 (2007-08-01), Kachanov et al.
patent: 7352463 (2008-04-01), Bounaix
patent: 2003/0210398 (2003-11-01), Augustine et al.
patent: 2004/0107764 (2004-06-01), Yan
patent: 2004/0194628 (2004-10-01), Mitra
patent: 2005/0040337 (2005-02-01), Cox et al.
patent: 2005/0052653 (2005-03-01), Fidric
patent: 2005/0062972 (2005-03-01), Krusen
patent: 2005/0094158 (2005-05-01), Paldus et al.
patent: 2005/0122520 (2005-06-01), Yan
patent: 2005/0122523 (2005-06-01), Yan
patent: 2005/0134836 (2005-06-01), Paldus et al.
patent: 2005/0254056 (2005-11-01), Kachanov et al.
patent: 2006/0082778 (2006-04-01), Paldus et al.
patent: 2006/0083284 (2006-04-01), Paldus et al.
patent: 2006/0084180 (2006-04-01), Paldus et al.
patent: 2006/0087655 (2006-04-01), Augustine et al.
patent: 1070943 (2004-01-01), None
patent: 1847825 (2007-10-01), None
patent: WO-2002/004903 (2002-01-01), None
patent: WO 03/098173 (2003-11-01), None
patent: WO-2005/108939 (2005-11-01), None
Cole Barrett E.
Cox James Allen
Gu Yuandong
Thorland Rodney H.
Fredrick Kris T.
Honeywell International Inc
Stafira Michael P
LandOfFree
Spectroscopy method and apparatus for detecting low... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spectroscopy method and apparatus for detecting low..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopy method and apparatus for detecting low... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4068646