Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Process control in response to analysis
Reexamination Certificate
2007-01-02
2007-01-02
Jastrzab, Krisanne (Department: 1744)
Chemical apparatus and process disinfecting, deodorizing, preser
Process disinfecting, preserving, deodorizing, or sterilizing
Process control in response to analysis
C250S339130, C250S343000, C422S004000, C422S028000, C422S105000
Reexamination Certificate
active
10191821
ABSTRACT:
A vaporizer (14) supplies hydrogen peroxide and water vapor to a high level disinfection or sterilization region (20). Mid-infrared light detectors (32) detect light in the mid-infrared range which has traversed a region of the treatment chamber in a first narrow spectrum centered at 8,000 nanometers which is absorbed by the hydrogen peroxide vapor, a second narrow spectrum which is absorbed by the water vapor, and a third spectrum that is absorbed by neither the hydrogen peroxide vapor nor the water vapor. From these measurements, an absorbance or transmittance is determined (40) from which the concentrations of hydrogen peroxide and water vapor are determined (42). Monitored temperature (44) and the determined concentrations are converted into a percent saturation (54). The supply of hydrogen peroxide and water vapor to the chamber is controlled (60) in accordance with the determined percent saturation.
REFERENCES:
patent: 5445792 (1995-08-01), Rickloff et al.
patent: 5847393 (1998-12-01), Van Den Berg et al.
patent: 5872359 (1999-02-01), Stewart et al.
patent: 5886348 (1999-03-01), Lessure et al.
patent: 5892229 (1999-04-01), Crozier et al.
patent: 6542762 (2003-04-01), Alam et al.
patent: 6875399 (2005-04-01), McVey
patent: 384 535 (1990-08-01), None
patent: 1104636 (1968-02-01), None
Fay Sharpe Fagan Minnich & McKee LLP
Jastrzab Krisanne
Steris Inc.
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