Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2005-01-18
2005-01-18
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C204S403010
Reexamination Certificate
active
06844742
ABSTRACT:
A chemical concentration detecting system for determining the relative concentrations of a multiple component chemical solution. The multi-component solution is preferably comprised of an antimicrobial chemical and a base fluid that acts as a diluent for the antimicrobial chemical, or as a vehicle or carrier for the antimicrobial chemical. A capacitor is exposed to the decontamination solution, wherein the decontamination solution acts as the dielectric between the plates of the capacitor. Permittivity of the dielectric is affected by the relative concentrations of the components, and thus a measurement of the capacitance is used to determine the relative concentration levels of the components in the solution.
REFERENCES:
patent: 3636444 (1972-01-01), Strawn et al.
patent: 3778706 (1973-12-01), Thompson
patent: 4219776 (1980-08-01), Arulanandan
patent: 4427772 (1984-01-01), Kodera 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: 5157968 (1992-10-01), Zfira
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: 5882590 (1999-03-01), Stewart 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: 20030063997 (2003-04-01), Fryer et al.
U.S. Appl. No. 10/456,378, filed Jun. 6, 2003, Centanni, entitled: Method and Apparatus for Formulating and Controlling Chemical Concentrations in a Solution.
U.S. Appl. No. 10/456,380, 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.
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, Jouhn Wiley & Sons, Inc., 1971.
Philipp, “The Charge Transfer Sensor,” Sensors Magazine, Oct. 1999.
Centanni Michael A.
Deb Anjan
He Amy
Kusner & Jaffe
Steris Inc.
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