Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For oxygen or oxygen containing compound
Reexamination Certificate
2005-08-16
2005-08-16
Olsen, Kaj K. (Department: 1753)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For oxygen or oxygen containing compound
C204S424000, C204S426000
Reexamination Certificate
active
06929735
ABSTRACT:
The invention relates to a method and apparatus for providing an electrochemical gas sensor having improved response time for detecting a gas introduced into the sensor. The sensor includes a substrate having a first surface and a second surface and an electrode deposited on the first surface. The sensor also includes an ionomer membrane in contact with the first surface and the electrode. The ionomer membrane has an opening in a location proximate to the electrode for permitting gas introduced into the sensor to diffuse through the opening to simultaneously contact the electrode and the ionomer membrane within the opening. The substrate further includes at least one hole extending from the first surface to the second surface for permitting moisture to diffuse through the at least one hole to contact the ionomer membrane for enhancing sensitivity.
REFERENCES:
patent: 3934193 (1976-01-01), Hall
patent: 3972682 (1976-08-01), Stephens et al.
patent: 4032296 (1977-06-01), Hall
patent: 4038053 (1977-07-01), Golay
patent: 4172770 (1979-10-01), Semersky et al.
patent: 4440726 (1984-04-01), Coulson
patent: 4555383 (1985-11-01), Hall
patent: 4032296 (1987-01-01), Hall
patent: 4649124 (1987-03-01), Hall
patent: 4812221 (1989-03-01), Madou et al.
patent: 4820386 (1989-04-01), LaConti et al.
patent: 4851104 (1989-07-01), Connery et al.
patent: 4900405 (1990-02-01), Otagawa et al.
patent: 5194814 (1993-03-01), D'Couto
patent: 5302274 (1994-04-01), Tomantschger et al.
patent: 5331310 (1994-07-01), Stetter et al.
patent: 5525197 (1996-06-01), Coulson
patent: 5527446 (1996-06-01), Kosek et al.
patent: 5545252 (1996-08-01), Hinshaw et al.
patent: 5573648 (1996-11-01), Shen et al.
patent: 5650054 (1997-07-01), Shen et al.
patent: 5711786 (1998-01-01), Hinshaw
patent: 5830337 (1998-11-01), Xu
patent: 5889197 (1999-03-01), Van der Maas et al.
patent: 5985673 (1999-11-01), Bao et al.
patent: 6080294 (2000-06-01), Shen et al.
patent: 6165251 (2000-12-01), Lemieux et al.
patent: 6200443 (2001-03-01), Shen et al.
patent: 6205841 (2001-03-01), Shibamoto
patent: 6245298 (2001-06-01), Bremer et al.
patent: 6287643 (2001-09-01), Powell et al.
patent: 6306489 (2001-10-01), Hellmann et al.
patent: 6309612 (2001-10-01), Balachandran et al.
patent: 6338823 (2002-01-01), Furukawa
patent: 6355150 (2002-03-01), Savin-Poncet et al.
patent: 6682638 (2004-01-01), Prohaska et al.
patent: 199 40 095 (2001-01-01), None
patent: 199 44 650 (2001-12-01), None
patent: 0 157160 (1985-09-01), None
patent: 1382640 (1972-06-01), None
patent: 1382649 (1972-08-01), None
(Polyaniline thin-films for gas sensing), N.E. Agbor et al., 1995 Elsevier Science S.A. pp. 173-179.
(The Development of a Thick-Film Electrochemical Sensor and Instrumentation for In-Situ Determination of Carbon Dioxide Partial Pressure (pCO2) In The Marine Environment), M.R. Creasey et al., University of Southampton, U.K., Electronic Engineering in Oceanography, Jul. 19-21 1994, Conference Publication No 394 IEE 1994.
(Sixth International Conference on Electronic Engineering in Oceanography) Electron theory of thin-film gas sensors, Helmut Geistlinger, 1993 Elsevier Sequoia, pp 47-60.
(A Practical Reference Electrode) J. Giner, Pratt & Whitney Aircraft, Division of United Aircraft Corporation, East Hartford, CT.
(Design and application of thick-film multisensors) N. Hampp et al., 1992 Elsevier Sequoia pp. 144-148.
(Thin Film Porous Membranes for Catalytic Sensors) R.C. Hughes, et al., 1997 International Conference on Solid-State Sensors and Actuators Chicago, Jun. 16-19, 1997.
(Amperometric Gas Sensor of Thin Gold Film Electrode Ion-Plated on Gas Permeable Membrane for Detection of Arsine and Silane) Toru Ishiji et al., pp. 1019-1020.
(A solid-state pH sensor based on a Nafion-coated iridium oxide indicator electrode and a polymer-based silver chloride reference electrode) Patrick J. Kinlen et al., 1994 Elsevier Science pp 13-25.
(Multifunctional Sensors Based on Ceramic Electrolytes) Meilin Liu et al., Georgia Institute of Technology, Atlanta, Georgia pp 421-427.
(The thick-film route to selective gas sensors) F. Menil et al., 1995 Elsevier Science S.A. pp 415-420.
(Properties of vanadium oxide thin films for ethanol sensor) G. Micocci et al., J. Vac. Sci. Technol. A 15(1), Jan./Feb. 1997 American Vacuum Society.
(An Integrated Multi-Element Ultra-Thin-Film Gas Analyzer) N. Najuh et al., Solid-State Sensor and Actuator Workshop Proc. 5.
(Preparation of thin gold-film electrode for an electrochemical gas sensor for phosphine and arsine) Nobuo Nakano, et al., 1994 Elsevier Science S.A. pp 51-55.
(A Study of the Surface Sensitivity of Tin Oxide Sensors to Carbon Monoxide and Dioxide) Dario Narducci et al., Dept. of Physical Chemistry & Electrochemistry v. C. Golgi, 19 I-20133 Milano (Italy).
(UV-Polymerizable Screen-Printed Enzyme Pastes) Ingrid Rohm, et al., 1995 American Chemical Society Analytical Chemistry, vol. 67, No. 13, Jul. 1, 1995, Anal. Chem. 1995, 67 2304-3207.
(CO-Sensor for domestic use based on high temperature stable Ga2O3thin films), T. Schwebel, et al., 1997 International Conference on Solid-State Sensors and Actuators Chicago, Jun. 16-19, 1997.
(A Low-Power CMOS Compatible Integrated Gas Sensor Using Maskless Tin Oxide Sputtering) Lie-yi Sheng, et al., 1997 International Conference on Solid-State Sensors and Actuators Chicago, Jun. 16-19, 1997 pp 939-942.
(Platinum Thin Films and Next-Generation Micromachined Sensors) John Staley, et al., Sensors Apr. 1996.
(An amperometric carbon monoxide sensor based on the steady-state difference response technique) Y. Tan et al., 1995 Elsevier Science S.A. pp 113-121.
(A Novel Semiconductor No Gas Sensor Operating At Room Temperature) Zhang Wenyi et al., 1997 International Conference on Solid-State Sensors and Actuators, Chicago, Jun. 16-19, 1997.
(Environmental gas sensing) Noboru Yamazoe et al., 1994 Elsevier Science S.A. pp 95-102.
(Life-elongation mechanism of the polymer-electrolyte lamination on a CO sensor) Ayumu Yasuda, et al., 1994 Elsevier Science S.A. pp 229-236.
Analytik Jena AG acquires 100% of APS Technologies, Inc./USA Jena/Houston, Sep. 24, 2001, 2 pgs.
Total Sulfur Analyzer—Combustion / Electrochemical Detection*; APS Technologies, Inc.; ASTM D6428-99; 40 CFR 80.580; 2 pgs.
Versatile Electrolytic Conductivity Detector For Gas Chromatography, P. Jones and G. Nickless, J. Chromatogr., 73 (1972), 19-28.
Electrolytic Conductivity Detector for Gas Chromatography, Dale M. Coulson, Coulson Instruments Co., J. Gas Chromatography, Apr. 1965.
Carbon Monoxide Sensors, Beech et al., Electrochemistry at Loughborough, 1999.
Dalmia Avinash
Prohaska Otto J.
Olsen Kaj K.
Perkin Elmer Instruments LLC
St. Onge Steward Johnston & Reens LLC
LandOfFree
Electrochemical sensor having improved response time does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrochemical sensor having improved response time, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochemical sensor having improved response time will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3523173