Gas separation: apparatus – With sterilizing means – Means uses chemical antimicrobial agent
Reexamination Certificate
2005-03-29
2005-03-29
Lawrence, Frank M. (Department: 1724)
Gas separation: apparatus
With sterilizing means
Means uses chemical antimicrobial agent
C055S524000, C055SDIG002, C095S285000, C422S120000, C427S244000, C442S123000
Reexamination Certificate
active
06872241
ABSTRACT:
The present invention provides an anti-pathogenic air filtration medium comprising a fibrous substrate whose fibers are coated with coating comprising a polymer. The coating provides an environment that is destructive to airborne pathogens. In particular, the filter medium can be used in a building air handling system that both filters the air and eliminates pathogens. The filter medium also can be used to create a new bio-protective gas mask that not only offers protection against chemical warfare agents, but also provides protection against biological pathogens.
REFERENCES:
patent: 3017239 (1962-01-01), Rodman
patent: 3116969 (1964-01-01), Coleman, Jr.
patent: 3820308 (1974-06-01), Onuki
patent: 4118226 (1978-10-01), Bourassa
patent: 4374814 (1983-02-01), Gaylord
patent: 4534775 (1985-08-01), Frazier
patent: 4604110 (1986-08-01), Frazier
patent: 4608173 (1986-08-01), Watanabe et al.
patent: 4892719 (1990-01-01), Gesser
patent: 5006267 (1991-04-01), Vaughn et al.
patent: 5061336 (1991-10-01), Soane
patent: 5110514 (1992-05-01), Soane
patent: 5114632 (1992-05-01), Soane
patent: 5240484 (1993-08-01), Genovese et al.
patent: 5278243 (1994-01-01), Soane
patent: 5482551 (1996-01-01), Morris et al.
patent: 5492882 (1996-02-01), Doughty et al.
patent: 5523075 (1996-06-01), Fuerst et al.
patent: 5545367 (1996-08-01), Bae et al.
patent: 5547576 (1996-08-01), Onishi et al.
patent: 5578217 (1996-11-01), Unger et al.
patent: 5618622 (1997-04-01), Gillberg-Laforce et al.
patent: 5840245 (1998-11-01), Coombs et al.
patent: 5876489 (1999-03-01), Kunisaki et al.
patent: 5888527 (1999-03-01), Nashimoto et al.
patent: 5910291 (1999-06-01), Skalla et al.
patent: 5935370 (1999-08-01), Weimer et al.
patent: 5944878 (1999-08-01), Lindhe
patent: 5993738 (1999-11-01), Goswani
patent: 6015832 (2000-01-01), Baker et al.
patent: 6176962 (2001-01-01), Soane et al.
patent: 6209547 (2001-04-01), Koller et al.
patent: 6228163 (2001-05-01), Espinoza et al.
patent: 6342284 (2002-01-01), Yu et al.
patent: 6379753 (2002-04-01), Soane et al.
patent: 6380336 (2002-04-01), Soane et al.
patent: 6406535 (2002-06-01), Shintome
patent: 6435184 (2002-08-01), Ho
patent: 20010040136 (2001-11-01), Wei et al.
patent: 20020045667 (2002-04-01), Baker et al.
patent: 20030084980 (2003-05-01), Seufert et al.
patent: 20030154888 (2003-08-01), Yu et al.
patent: 20040045481 (2004-03-01), Sethuraman et al.
patent: 1 174 029 (2002-01-01), None
patent: 815184 (1959-06-01), None
patent: 04-197410 (1992-07-01), None
patent: 09-220416 (1997-08-01), None
patent: 2001-162116 (2001-06-01), None
patent: 0064264 (2000-11-01), None
patent: 02058812 (2002-08-01), None
patent: 02059404 (2002-08-01), None
patent: 02059413 (2002-08-01), None
patent: WO 200402468 (2004-03-01), None
Messier, U.S. patent application Publication No. 2001/0045398, published Nov. 29, 2001.
Linford et al., U.S. patent application Publication No. 2002/0122890, published Sep. 5, 2002.
M. Dever, et al., “Characterization of melt-blown filters made of polypropylene and polypropylene-antimicrobial blends”,Tappi Journal, vol. 80, No. 3, pp. 157-168, Mar. 1997.
K,K. Foarde, et al., “Determine the efficacy of Antimicrobial treatments of fibrous air filters”,ASHRAE Trans., vol. 107, Part 1, pp. 156-170, 2001.
A. Kanazawa, et al.. “Polymeric Phosphnium Salts as a Novel Class of Cationic Biocides. X. Antibacterial Activity of Filters Incorporating Phosphonium Biocides”,J. Applied Polymer Sci., vol. 54, No. 9, pp. 1305-1310, Nov. 28, 1994.
M. Okamoto, et al., “Studies on the antibacterial air filter”,Proceedings of the Institute of Environmental Sciences and Technology, Phoenix, Arizona, Apr. 26-May 1, 1998, pp. 122-128.
Plant Engineering, Mar. 2002, p. 66.
Diebold, J.P., “A Review of the Chemical and Physical Mechanisms of the Storage Stability of Fast Pyrolysis Bio-Oils”,National Renewable Energy Laboratory, SR-570-27613, Jan. 2000.
Sheldon K. Freidlander, Smoke, Dust and Haze, “Fundamentals of Aerosol Dynamics”, Second Edition, Oxford University Press, New York, 2000.
William C. Hinds, Aerosol Technology, “Properties, Behavior, and Measurement of Airborne Particles”, A Wiley-Interscience Publication, New York, 1982.
Douglas W. VanOsdell, Benjamin Y.H. Liu, Kenneth L. Rubow, and David Y.H. Pui, Aerosol, Science and Technology, “Experimental Study of Submicrometer and Ultrafine Particle Penetration and Pressure Drop for High Efficiency Filters”, 12 : 911-925 (1990).
R.C. Brown, Air Filtration, “An Integrated Approach to the Theory and Applications of Fibrous Filters”, Pergamon Press, 1993.
Kvestoslav R. Spurny, Advances in Aerosol Filtration, Lewis Publishers, 1998.
Nancy Runci Bretich, Mary Frances Tracey, Thomas R. Dashiell, Worldwide NBC Mask Handbook, Defense Technical Information Center, ATTN: DTIC-A1, Contract No. DLA900-86-C-2045, Alexandria, Virginia, Sep. 1992.
W.J. Kowalski, W.P. Bahnfleth, TS Whittam, “Filtration of Airborne Microorganisms: Modeling and Prediction,”ASHRAE Transactions: Research, 105 (2), 4-17, 1999. Accessed online at http://www.arche.psu.edu/iec/abe/fom.html.
Y.-C. Yang, J.A. Baker, and J.R. Ward, “Decontamination of Chemical Warfare Agents.”Chem. Rev., 92, (1992), 1729-1743.
K.J. Ewing, P.L. Scolla, J.L. Stricker, and L.A. Citta, “Determination of Optimum Sorbent Material for Collection and Air Desorption of Chemical Warfare Agents.” CBIAC No.: CB-160853 (1999).
T.-F. Lin and W.W. Nazaroff, “Transport and Sorption of Water Vapor in Activated Carbon,”J. Envir. Eng., (1996), 176-182.
T.-F. Lin, J.C. Little, and W.W. Nazaroff, “Transport and Sorption of Organic Gases in Activated Carbon.”J. Envir. Eng., (Mar. 1996), 169-175.
T.-F. Lin, J.C. Little, and W.W. Nazaroff, “Transport and Sorption of Volatile Organic Compounds and Water Vapor within Dry Soil Grains.”Environ. Sci. Technol., 28 (1994), 322-330.
T.-F. Lin, M.D. Van Loy, and W.W. Nazaroff, “Gas-Phase Transport and Sorption of Benzene in Soil.”Environ. Sci. Technol., 30 (1996), 2178-2186.
G.C. Morrison and W.W. Nazaroff, “The Rate of Ozone Uptake on Carpet: Mathematical Modeling.”Atmospheric Environment, 36 (2002), 1749-1756.
J.A. Cano-Ruiz, D. Kong, R.B., Balas, and W.W. Nazaroff, “Removal of Reactive Gases at Indoor Surfaces.”Atmospheric Environment, 27A (1993), 2039-2050.
J.O. Allen, J.S. Paschkewitz, E.F. Plummer, A.L. Lafleur, A.F. Sarofim, and K.A. Smith, “Adsorption of Semi-Volatile Compounds in Oiled Impaction Substrates: Measurement of Pyrene Adsorption.”Aerosol Sci. Technol., 30 (1999), 16-29.
Davis et al., “Evaluation of the Filtration Performance of Biocide Loaded Filter Media,” International Nonwovens Journal, vol. 8 (No. 2), 1999 (no page number).
S. Shiratori et al., “Removal of Toxic Gas by Hybrid Chemical Filter Fabricated by the Sequential Adsorption of Polymers,” Thin Solid Films, 393 (2001), 243-248.
http://hem.dis.anl.gov/eehen/96/960709.html Creech et al. “Clearing the Air: Filters for Residential Forced-Air Systems” Home Energy Magazine Online Jul./Aug. 1996.
http://www.permatron.com/Comm/ODORFUME.html and http://www.airguard.com/downloads/IAO-440.pdf Permatron's and Airguard's products for odor removal (activated carbon impregnated with potassium permanganate) -other companies sell similar products.
http://www.epa.gov/iaq/pubs/residair.html “Residential Air Cleaning Devices: A Summary of Available Information” (EPA's review of the subject).
http://www.ia.wvu.edu/˜magazine/winter98/GermKiller.html “Quest for a Better Germ Killer”.
S. L. Regen et al., “Activation through Impregnation. Permanganate-Coated Solid Supports” J. Am. Chem. Soc., 1977, 99, 3837-3838.
P. K. Stoimenov et al. “Metal Oxide Nanoparticles as Bactericidal Agents”, Langmuir, 2002, 18, 6679-6686.
F. Gonzaga et al., “The Role of Lipophilici
Soane David S.
Tagge Christopher D.
Fowler White Boggs Banker P.A.
Innovative Construction and Building Materials, LLC
Lawrence Frank M.
Paradies Christopher
LandOfFree
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