Gas separation – Combined or convertible
Reexamination Certificate
2006-10-10
2006-10-10
Smith, Duane (Department: 1724)
Gas separation
Combined or convertible
C055S486000, C055SDIG033, C055SDIG035, C055S482000, C055S485000, C055S467000, C055S471000, C055S472000, C055S473000, C095S273000, C096S223000, C096S226000, C096S134000, C096S143000, C096S108000, C128S200240, C128S200280, C128S201250, C422S177000, C422S178000, C422S179000, C422S180000
Reexamination Certificate
active
07118608
ABSTRACT:
A self-powered, personally wearable air purifier includes a sequence of packed bed filter media packets having filter media therein of specifically targeted types that will absorb those ambient air pollutants that have been identified as being particularly dangerous to human health. A HEPA filter is included for the removal of particulate matter that will have adhered thereto many of such pollutants. Media types can be selected to meet different environmental circumstances, including normal highway or city center air, or terrorist attacks of chemical, biological or “dirty bomb” types as on a battlefield or similar environments. Shoulder straps and a chest strap are provided for wearing the apparatus on a user's back, or other means such as a shoulder pouch can also be employed. Emergency substitution of filter media using thermal insulation from the clothing of the user is available upon depletion of the normal media material.
REFERENCES:
patent: 2614654 (1952-10-01), Strinden
patent: 3722182 (1973-03-01), Gilbertson
patent: 3870495 (1975-03-01), Dixson et al.
patent: 3883637 (1975-05-01), Benedict
patent: 3971373 (1976-07-01), Braun
patent: 4207291 (1980-06-01), Byrd et al.
patent: 4277443 (1981-07-01), Van der Smissen et al.
patent: 4334901 (1982-06-01), Ayes et al.
patent: 4462399 (1984-07-01), Braun
patent: 4530706 (1985-07-01), Jones
patent: 4610703 (1986-09-01), Kowalczyk
patent: 4629482 (1986-12-01), Davis
patent: 4658707 (1987-04-01), Hawkins et al.
patent: 4722747 (1988-02-01), Armbruster
patent: 4790306 (1988-12-01), Braun et al.
patent: 4917862 (1990-04-01), Kraw et al.
patent: 5004487 (1991-04-01), Kowalczyk
patent: 5033465 (1991-07-01), Braun et al.
patent: 5035240 (1991-07-01), Braun et al.
patent: 5042997 (1991-08-01), Rhodes
patent: 5063926 (1991-11-01), Forsgren et al.
patent: 5165395 (1992-11-01), Ricci
patent: 5192346 (1993-03-01), Kowalczyk
patent: 5221292 (1993-06-01), Aoyama
patent: 5509853 (1996-04-01), Wells
patent: 5620545 (1997-04-01), Braun et al.
patent: 5656368 (1997-08-01), Braun et al.
patent: 5683478 (1997-11-01), Anonychuk
patent: 5753343 (1998-05-01), Braun et al.
patent: 5762665 (1998-06-01), Abrahamian et al.
patent: 5763078 (1998-06-01), Braun et al.
patent: 5804295 (1998-09-01), Braun et al.
patent: 5810896 (1998-09-01), Clemens
patent: 5879423 (1999-03-01), Luka et al.
patent: 6010766 (2000-01-01), Braun et al.
patent: 6136057 (2000-10-01), Dang et al.
patent: 6742518 (2004-06-01), Chang
patent: 6840986 (2005-01-01), Koslow
Real Goods. realgoods.com/shop, 3 stage auto filter using activated carbon,electret charged medium, and a Zeolite VOC.
Real Goods. ( same) Auto ionizer to help precipitate air Pollutants.
Heinz H. Bitterman article “History and World Wide Trends in Cabin Air Filter Testing” Fluid/Particle Sep. Journal, vol. 3,No. 2 Aug. 2000.
Tadeusz Jaroszcyk et al. article, Filtration Performance. Fluid/ Particle Sep. Journal. vol. 3,No. 2, Aug. 2000.
Tadeusz Jaroszcyk et al. article Media Needs for Automotive Cabin Air Treat. Filtration 98 Conf. Amer. Filtration & Separation Society.
Yogic et al. article“Road Test of Car Cabin Filters in Japan”. Fluid/Particle Separation Journal vol. 11 No. 1, Apr. 1998.
Samuel E. Lee et al. article “Odor Filter Design Process”. Fluid/Particle Separation Journal,vol. 9,No. 3, Oct. 1996.
Olaf Kievet article “Cabin Air Filter Loading under Real-Life Conditions” Amer. Filtration and Separation Society. vol. 11, 1997.
Web Site www.epa.gov/ttn/amtic, under the heading “A final draft copy of the”Particulate Matter (PM2.5) Spec. Guidance Document.
Pham Minh-Chau T.
Smith Duane
LandOfFree
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