Measuring and testing – Gas analysis
Reexamination Certificate
2006-10-31
2006-10-31
Larkin, Daniel S. (Department: 2856)
Measuring and testing
Gas analysis
C073S023310, C073S031050, C257S253000
Reexamination Certificate
active
07127935
ABSTRACT:
A sensor system for detecting the presence of at least one specific component in a fluid medium such as an exhaust gas. A sensor is mounted in a sensor body for detecting the presence of at least one specific component and providing a representative signal that is transmitted to a remote receiver for processing. A power source such as a thermopile provides power for the sensor and the transmitter. Preferred are sensors that detect a plurality of different components in the gas and provide a distinct signal for each component. A preferred transmitter is designed to transmit at a low duty cycle so as to conserve power. A preferred sensor is electronic, has the capability for self-diagnostics and self-calibration, and causes a change in current when exposed to the component, such as a functionalized field effect transistor.
REFERENCES:
patent: 6340864 (2002-01-01), Wacyk
patent: 2004/0159142 (2004-08-01), Knott et al.
patent: 2004/0218175 (2004-11-01), Barkhoudarian et al.
patent: 2005/0285155 (2005-12-01), Johnson et al.
patent: 2000179847 (2000-06-01), None
JP 2000179847 A English language machine translation from JP Patent Office and Derwent English language abstract.
Bonne Ulrich
Kirkpatrick, II Richard A.
Liu Yue
Rahman Aziz
Shahed Syed M.
Fredrick Kris T.
Honeywell International , Inc.
Larkin Daniel S.
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