Measuring and testing – Gas analysis – By thermal property
Reexamination Certificate
2007-04-30
2008-12-09
Larkin, Daniel S (Department: 2856)
Measuring and testing
Gas analysis
By thermal property
C073S025010, C073S031050, C073S031060
Reexamination Certificate
active
07461540
ABSTRACT:
A gas sensor has a dielectric base having a face, a heater element on the face, electrodes connected to the heater element, and a gas sensor element on the heater element that when heated changes impedance when in contact with a predetermined gas. The element is in electrical contact with the heater element. A power supply connected to the heater element electrodes energizes same and heats the gas sensor to its operating temperature. A sensor electrode is also in contact with the sensor element so that the impedance of the sensor element can be measured between the sensor electrode and one of the heater element electrodes.
REFERENCES:
patent: 5012671 (1991-05-01), Yagawara et al.
patent: 5777207 (1998-07-01), Yun et al.
patent: 61-275648 (1986-12-01), None
patent: 1-301158 (1989-12-01), None
patent: 4-128645 (1992-04-01), None
patent: 5-52791 (1993-03-01), None
patent: 6-11472 (1994-01-01), None
patent: WO 2004/048956 (2004-06-01), None
patent: WO 2004/051261 (2004-06-01), None
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