Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Reexamination Certificate
2007-08-28
2007-08-28
Raevis, Robert (Department: 2856)
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
Reexamination Certificate
active
10207946
ABSTRACT:
An air sampler having a fan; an air inlet tube; a main body having a cyclonic cup, a stripping column and a demister; and fluidic circuitry for inputting fluids to the main body and the air inlet tube, and for outputting fluids from the main body. Air flow through the air sampler may be generated by a fan that is either external or internal with respect to the main body's cyclonic cup. A thin film of stripping liquid and/or a fog of stripping liquid particles in the air inlet tube, the cyclonic cup, the stripping column and/or the demister strip a target material from the air flow through the air sampler. A passive fog generating slot or a passive spiral fog generating nozzle may be placed over the fluid input conduit in the center of the cyclonic cup. The air sampler's main body and/or an air inlet tube may be integrally formed as one part. The main body's inner surfaces may be selected to be hydrophilic, for better flow of the thin film of stripping liquid across them; and its intersecting internal surfaces may be provided with smoothly curved fillets for better air and liquid flow over them. The air sampler may be provided with a liquid level control that may have a reservoir float monitored by external optical sensors; a flexible, capacitive effect, dual electrode bearing substrate that is wrapped around the exterior of the air sampler's stripping column; or an external optical bubble sensor for the reservoir's output conduit. The air sampler may be so small, light and low in energy consumption that it may be battery powered and human-portable; and may be so efficient that it may be used to strip target material that is present in the incoming air in concentrations of only a few parts per trillion, or less.
REFERENCES:
patent: 2768705 (1956-10-01), Isserlis et al.
patent: 2847083 (1958-08-01), Hibshman
patent: 3465883 (1969-09-01), Jumper
patent: 3627440 (1971-12-01), Wood
patent: 3791777 (1974-02-01), Papoff et al.
patent: 3888539 (1975-06-01), Neissner
patent: 3926592 (1975-12-01), Leva
patent: 4002127 (1977-01-01), Angus
patent: 4015957 (1977-04-01), Grantham
patent: 4154251 (1979-05-01), Doyel
patent: 4286973 (1981-09-01), Hamlin et al.
patent: 4352681 (1982-10-01), Dietz
patent: 4409274 (1983-10-01), Chaplin et al.
patent: 4482347 (1984-11-01), Borsanyi
patent: 4506655 (1985-03-01), Kuechler
patent: 4518327 (1985-05-01), Hackman
patent: 4545745 (1985-10-01), Barreca
patent: 4568255 (1986-02-01), Lavender et al.
patent: 4604038 (1986-08-01), Belew
patent: 4607614 (1986-08-01), Higashino et al.
patent: 4624691 (1986-11-01), Schneider
patent: 4652520 (1987-03-01), Bauman
patent: 4728265 (1988-03-01), Cannon
patent: 4869236 (1989-09-01), Blough
patent: 4869880 (1989-09-01), Hettinger et al.
patent: 4921150 (1990-05-01), Lagergren et al.
patent: 4969934 (1990-11-01), Kusik et al.
patent: 5083908 (1992-01-01), Gagnebin et al.
patent: 5093029 (1992-03-01), Husain et al.
patent: 5126043 (1992-06-01), Giordano et al.
patent: 5173038 (1992-12-01), Hopfensperger et al.
patent: 5207805 (1993-05-01), Kalen et al.
patent: 5215450 (1993-06-01), Tamari
patent: 5326236 (1994-07-01), Kramer et al.
patent: 5333511 (1994-08-01), Boyum et al.
patent: 5357726 (1994-10-01), Effenberger et al.
patent: 5380173 (1995-01-01), Hellstrom
patent: 5443451 (1995-08-01), Chapman et al.
patent: 5500369 (1996-03-01), Kiplinger
patent: 5688112 (1997-11-01), Garay
patent: 5705018 (1998-01-01), Hartley
patent: 5730922 (1998-03-01), Babb et al.
patent: 5809993 (1998-09-01), Neitzel et al.
patent: 5858551 (1999-01-01), Salsman
patent: 5919525 (1999-07-01), Appelt et al.
patent: 5934869 (1999-08-01), Janisse
patent: 5989824 (1999-11-01), Birmingham et al.
patent: 6010554 (2000-01-01), Birmingham et al.
patent: 6062392 (2000-05-01), Birmingham et al.
patent: 6110247 (2000-08-01), Birmingham et al.
patent: 6120573 (2000-09-01), Call et al.
patent: 6267016 (2001-07-01), Call et al.
patent: 6290065 (2001-09-01), Kenning et al.
patent: 6363800 (2002-04-01), Call et al.
patent: 6455014 (2002-09-01), Hammerstrom et al.
patent: 6488900 (2002-12-01), Call et al.
patent: 6623603 (2003-09-01), Call et al.
patent: 6694739 (2004-02-01), Beckius et al.
patent: 6695146 (2004-02-01), Call et al.
patent: 6698592 (2004-03-01), Kenning et al.
patent: 6729196 (2004-05-01), Mohler et al.
patent: 2001/0029793 (2001-10-01), Moler et al.
patent: 2002/0124664 (2002-09-01), Call et al.
patent: 2002/0157993 (2002-10-01), Call et al.
patent: 2002/0175068 (2002-11-01), Hammerstrom et al.
patent: 2003/0070430 (2003-04-01), Beckius et al.
patent: 2004/0016680 (2004-01-01), Call et al.
patent: 2004/0025604 (2004-02-01), Call et al.
American Conference of Governmental Industrial Hygienists; Air Sampling Instruments; book; 1960; pages: cover, copyright page, K10-K12, K26-K27, M14-M15, P2-P15 and R4-R5, Cincinnati, USA.
Ariman, Teoman (editor); Novel Concepts, Methods and Advanced Technology in Particulate-Gas Separations; workshop proceedings; 1977; pages: cover and pp. 237-360; USA.
Chen, Da-Ren et al.; Numerical and Experimental Studies of Particle Deposition in a Tube with a Conical Contraction Laminar Flow Regime; journal; 1995; vol. 26, No. 4; pp. 563-574; Pergamon Press, J. Aerosol Sci.
Hesketh, Howard E.; Fine Particles In Gaseous Media; book; 1986; pages: cover, copyright page, 109-155; Lewis Publishers, Inc.; USA.
Saaski, Elric W.; High Efficiency Sampler Design; proposal; Jul. 26, 1996; pages: cover and vol. 1, pp. 3-29.
Saaski, Elric W.; High-Performance Portable Sampler; proposal; 1996; pages: cover and pp. i and 1-39.
Strauss, W.; Industrial Gas Cleaning; book; 1975; pages: cover, 216-276, and 367-408; Pergamon International.
Thompson, R.C., et al.; Dielectrophoretic Air Filtration: Progress and Problems; book; 1995 (uncertain); pp. 361-372; U.S. Naval Research Laboratory. U.S.A.
Jung Chuck C.
McCrae David A.
Saaski Elric W.
Fulbright & Jaworski L.L.P.
Raevis Robert
Research International, Inc.
LandOfFree
Air sampler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air sampler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air sampler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3845032