Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Chemical analysis
Reexamination Certificate
2005-07-12
2005-07-12
Tsai, Carol S. W. (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Chemical analysis
C702S025000, C702S030000, C702S031000, C702S032000
Reexamination Certificate
active
06917885
ABSTRACT:
A method and apparatus for formulating and controlling concentrations of deactivating chemicals in a gas mixture inside a chamber. The gas mixture may include chemical components that are deactivating chemicals, as well as chemical components that are base chemicals, acting as a dilutant for the deactivating chemical, or as a vehicle or carrier for the deactivating chemical. A capacitor is exposed to the gas mixture, wherein the gas mixture comprises a dielectric material between the plates of the capacitor. Permittivity of the dielectric is affected by the relative concentrations of the chemical components, and thus a measurement of the capacitance is used to determine the concentration levels of multiple chemical components in the gas mixture.
REFERENCES:
patent: 3636444 (1972-01-01), Strawn et al.
patent: 3778706 (1973-12-01), Thompson
patent: 3816811 (1974-06-01), Cmelik
patent: 4031742 (1977-06-01), Michael et al.
patent: 4158810 (1979-06-01), Leskovar
patent: 4219776 (1980-08-01), Arulanandan
patent: 4427772 (1984-01-01), Kodera et al.
patent: 4509522 (1985-04-01), Manuccia et al.
patent: 4525265 (1985-06-01), Abe et al.
patent: 4674879 (1987-06-01), Gregorig et al.
patent: 4857152 (1989-08-01), Armstrong et al.
patent: 5151660 (1992-09-01), Powers et al.
patent: 5157968 (1992-10-01), Zfira
patent: 5171523 (1992-12-01), Williams
patent: 5243858 (1993-09-01), Erskine et al.
patent: 5364510 (1994-11-01), Carpio
patent: 5439569 (1995-08-01), Carpio
patent: 5459568 (1995-10-01), Yano et al.
patent: 5470754 (1995-11-01), Rounbehler et al.
patent: 5600142 (1997-02-01), Van Den Berg et al.
patent: 5847276 (1998-12-01), Mimken et al.
patent: 5861303 (1999-01-01), Barshter et al.
patent: 5882590 (1999-03-01), Stewart et al.
patent: 6162409 (2000-12-01), Skelley et al.
patent: 6369387 (2002-04-01), Eckles
patent: 6454874 (2002-09-01), Jacobs et al.
patent: 6614242 (2003-09-01), Matter et al.
patent: 6660231 (2003-12-01), Moseley
patent: 6706648 (2004-03-01), Yamazaki et al.
patent: 2002/0014410 (2002-02-01), Silveri et al.
patent: 2002/0033186 (2002-03-01), Verhaverbeke et al.
patent: 2002/0076492 (2002-06-01), Loan et al.
patent: 2002/0109511 (2002-08-01), Frank
patent: 2002/0111040 (2002-08-01), Yamazaki et al.
patent: 2002/0157686 (2002-10-01), Kenny et al.
patent: 2003/0063997 (2003-04-01), Fryer et al.
patent: 2003/0102007 (2003-06-01), Kaiser
patent: 2003/0157587 (2003-08-01), Gomez et al.
patent: 2004/0029257 (2004-02-01), Dutil et al.
patent: 2004/0079395 (2004-04-01), Kim et al.
patent: 2004/0178799 (2004-09-01), Korenev et al.
patent: 2004/0178802 (2004-09-01), Centanni
patent: 2004/0178803 (2004-09-01), Centanni
patent: 2004/0178804 (2004-09-01), Allen et al.
patent: 2004/0262170 (2004-12-01), Centanni
Philipp, “Charge Transfer Sensing,” 1997.
Wojslaw, “Everything You Wanted to Know About Digitally Programmable Potentiometers,” Catalyst Semiconductor, Inc., Oct. 17, 2001, Publication No. 6009.
Kittel, “Introduction to Solid State Physics,” Fourth Edition, John Wiley & Sons, Inc., 1971.
Philipp, “The Charge Transfer Sensor,” Sensors Magazine, Oct. 1999.
U.S. Appl. No. 10/389,036, filed Mar. 14, 2003, Centanni, entitled: Method and Apparatus for Measuring Chemical Concentration in a Fluid.
U.S. Appl. No. 10/405,880, filed Apr. 2, 2003, Centanni, entitled: Method and Apparatus for Measuring Concentration of a Chemical Component in a Gas Mixture.
U.S. Appl. No. 10/456,378, filed Jun. 6, 2003, Centanni, entitled: Method and Apparatus for Formulating and Controlling Chemical Concentrations in a Gas Mixture.
U.S. Appl. No. 10/667,988, filed Sep. 22, 2003, Korenev et al., entitled: Method and Apparatus for Measuring the Concentration of Hydrogen Peroxide in a Fluid.
T. J. Buckley et al., “Toroidal Cross Capacitor for Measuring the Dielectric Constant of Gases,” Review of Scientific Instruments, vol. 71, No. 7, Jul. 2000, pp. 2914-2921.
Gross et al., “The Dielectric Constants of Water Hydrogen Peroxide and Hydrogen Peroxide-Water Mixtures,” L. Amer. Chem. Soc., vol. 72, 1950, pp. 2075-2080.
“Humidity Sensor Theory and Behavior,” Psychometrics and Moisture, Honeywell HVAC, Nov. 27, 2002.
U.S. Appl. No. 10/872,227, filed Jun. 18, 2004, Kaiser et al., entitled: Method and Apparatus for Monitoring the Purity and/or Quality of Steam.
U.S. Appl. No. 10/896,609, filed Jul. 21, 2004, Kaiser et al., entitled: Method and Apparatus for Real Time Monitoring of Metallic Cation Concentrations in a Solution.
U.S. Appl. No. 10/900,745, filed Jul. 28, 2004, Kaiser et al., entitled: Method and Apparatus for Monitoring the State of a Chemical Solution for Decontamination of Chemical and Biological Warfare Agents.
U.S. Appl. No. 10/931,186, filed Aug. 31, 2004, Kaiser et al., entitled: Method and Apparatus for Monitoring Detergent Concentration in a Decontamination Process.
Centanni Michael A.
Kusner & Jaffe
Steris Inc.
Tsai Carol S. W.
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