UV irradiation for surface cleaning

Cleaning and liquid contact with solids – Processes – Including application of electrical radiant or wave energy...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C422S024000, C422S121000, C062S078000, C065S095000, C250S454110

Reexamination Certificate

active

07323065

ABSTRACT:
There are disclosed methods of controlling the presence of surface and airborne microorganisms in an air handler. The method may comprise: energizing a germicidal lamp to emit distributed UVC radiation; positioning the germicidal lamp in proximity to the heat transfer coil, wherein the intensity of the UVC radiation striking a heat transfer coil of the air handler is to a degree independent of the distance of the germicidal lamp to the heat transfer coil; directing the UVC radiation across the coil face to the coil's tube and fins; reflecting and directing the ultraviolet by the coil's tube and the fins-throughout the coil, thereby increasing the flux density of the ultraviolet radiation and the dosage of the radiation applied to airborne microorganisms and microorganisms carried on the surface; continuing to irradiate the surface with the UVC radiation from the germicidal lamp at least intermittently until the surface is organically clean.

REFERENCES:
patent: 3550782 (1970-12-01), Veloz
patent: 3576593 (1971-04-01), Cicirello
patent: 3744216 (1973-07-01), Halloran
patent: 4121107 (1978-10-01), Bachmann
patent: 4786812 (1988-11-01), Humphreys
patent: 4990313 (1991-02-01), Pacosz
patent: 5112370 (1992-05-01), Gazzano
patent: 5151135 (1992-09-01), Magee
patent: 5215592 (1993-06-01), Jackson
patent: 5219534 (1993-06-01), Reynolds
patent: 5225000 (1993-07-01), Fujii
patent: 5326542 (1994-07-01), Sizer
patent: 5330722 (1994-07-01), Pick
patent: 5334347 (1994-08-01), Hollander
patent: 5547635 (1996-08-01), Duthie, Jr.
patent: 5597597 (1997-01-01), Newman
patent: 5612001 (1997-03-01), Matschke
patent: 5742063 (1998-04-01), Scroggins
patent: 5755103 (1998-05-01), Na
patent: 5817276 (1998-10-01), Fencl
patent: 5866076 (1999-02-01), Fencl
patent: 5891399 (1999-04-01), Owesen
patent: 5924300 (1999-07-01), Fromm
patent: 5933702 (1999-08-01), Goswami
patent: 6013918 (2000-01-01), Bushnell
patent: 6056918 (2000-05-01), Palaniappan
patent: 6193894 (2001-02-01), Hollander
patent: 6245293 (2001-06-01), Fencl
patent: 6248235 (2001-06-01), Scott
patent: 6261449 (2001-07-01), Scott
patent: 6267924 (2001-07-01), Fencl
patent: 6274049 (2001-08-01), Scott
patent: 6280686 (2001-08-01), Scheir
patent: 6313470 (2001-11-01), Fencl
patent: 6330947 (2001-12-01), Scott
patent: 6379427 (2002-04-01), Siess
patent: 6500267 (2002-12-01), Fencl
patent: 6508367 (2003-01-01), Scott
patent: 6524457 (2003-02-01), Scott
patent: 6576188 (2003-06-01), Rose
patent: 6653647 (2003-11-01), Vilarasau Alegre
patent: 2002/0098109 (2002-07-01), Nelson
patent: 2003/0000229 (2003-01-01), Underwood
Nagy, Application and Measurement of Ultraviolet Radiation, American Industrial Hygiene Association Journal, May-Jun. 1964, pp. 274-281.
Philips, Germicidal Lamps and Applications, Nov. 1985.
General Electric, Product Catalog for GE Germicidal Lamps.
Ductwork gets a UV-Rx, curing mold growth problems; The Air Conditioning, Heating and Refigeration NEWS; Aug. 11, 1997, 1 page, Business News Publishing Co.
Nagle, “The How and Why of Electric Noses”, IEEE Spectrum, Sep. 1998, pp. 22-34.
Burge, H.A., Ph.D., “Approaches to the Control of Indoor Microbial Contamination”, Presented at Ashrae IAQ, May 1987.
Garrison, R.A., Robertson, L.D., Doehn, R.D. Ph.D., and Wynn, S.R. M.D., “Effect of Heating-Ventilation-Air Conditioning System Sanitation on Airborne Fungal Population in Residential Environments”, Nov. 1993.
Latala, Adam and Radzik, W. Dr., “World Wide Test Studies Report Positive Effects of Germicidal U.V. on Eggs and Chicks”, Applied Poultry Science, Inc., 1993.
“Healthy Healthcare Facilities”, Building Environment Report, vol. V, No. 7, Feb. 1997.
“Sterilaire UV Lamps”, Aug. 12, 1999.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

UV irradiation for surface cleaning does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with UV irradiation for surface cleaning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and UV irradiation for surface cleaning will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3962436

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.