Gas separation: processes – Liquid contacting – Surfactant or wetting agent
Reexamination Certificate
2005-05-09
2008-08-05
Lawrence, Frank M. (Department: 1797)
Gas separation: processes
Liquid contacting
Surfactant or wetting agent
C356S036000, C096S267000, C096S413000, C073S028010, C073S863000
Reexamination Certificate
active
07407531
ABSTRACT:
A system is disclosed for condensation particle counting in conjunction with modifying an aerosol to enhance the formation and growth of droplets of a selected working fluid, preferably water. Before saturation with the working fluid, the aerosol is exposed to an aerosol modifying component, preferably a vapor including molecules that are adsorbed onto surfaces of the particles or other elements suspended in the aerosol. Adsorption alters the surface character of the suspended elements towards increased affinity for the vapor of the working fluid, to promote the formation and growth of working fluid droplets. The droplets are optically detected to indicate numbers and concentrations of the suspended elements.
REFERENCES:
patent: 2684008 (1954-07-01), Vonnegut
patent: 4790650 (1988-12-01), Keady
patent: 5118959 (1992-06-01), Caldow et al.
patent: 5903338 (1999-05-01), Mavliev et al.
patent: 6712881 (2004-03-01), Hering et al.
patent: 6864974 (2005-03-01), Wiederin et al.
patent: 2004/0020362 (2004-02-01), Hering et al.
Liu, W. Sl Kaufman, GJ Sem, and Fr Quant. “Material Effects on Threshold Counting Efficiency of TSI Model 3785 Water-Based Condensation Particle Counter,” poster 6PDT, American Association for Aerosol Research 2004 Annual Conference, Atlanta, GA Oct. 2004, USA (2 pages).
Hering, Susanne V., Mark R. Stolzenurg, Frederick R. Quant, and Derek Oberreit. “A Laminar-Flow, Water-Based Condensation Particle Counter,” platform presentation 1B1, American Association for Aerosol Research 2004 Annual Conference, Atlanta, GA, Oct. 2004, USA (1 page).
Susanne V. Hering and Mark R. Stolzenburg, Aerosol Dynamics Inc., Frederick R. Quant and Derek Oberreit, Quant Technologies, LLC. “A Continuous, Laminar Flow, Water-Based Condensation Particle Counter,” Annual Meeting of the AAR, late breaking poster, 2003, USA (14 pages).
Washenfelder, R.A.; Roehl, C.M.; McKinney, K.A.; Julian, R.R.; Wennberg, P.O., “A Compact, lightweight gas standards generator for permeation tubes,” Review of Scientific Instruments, Jun. 2003, pp. 3151-4, vol. 74, USA (8 pages).
Vici Metronics, Inc. “Generating Calibration Gas Standards with Dynacal® Permeation Devices,” Houston, Texas, USA (3 pages). No Date Given.
J. McKinley and R.E. Majors, “The Preparation of Calibration Standards for Volatile Organic Compounds-A Question of Traceability,” Reprinted from LCGC, vol. 18, No. 10, Oct. 2000, USA (3pages).
Flagan Richard C.
Kaufman Stanley L.
Sem Gilmore J.
California Institute of Technology
Lawrence Frank M.
Patterson Thuente Skaar & Christensen P.A.
TSI Incorporated
LandOfFree
Particle surface treatment for promoting condensation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Particle surface treatment for promoting condensation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Particle surface treatment for promoting condensation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4009232