Measuring and testing – Gas analysis – Gas of combustion
Reexamination Certificate
2011-06-21
2011-06-21
Larkin, Daniel S (Department: 2856)
Measuring and testing
Gas analysis
Gas of combustion
C073S025050, C073S031050
Reexamination Certificate
active
07963145
ABSTRACT:
In apparatus and method for detecting a combustible gas within an atmosphere to be detected, a calculated humidity deviation corresponding to a past gas concentration stored in a memory unit of a microcomputer is calculated on the basis of a correlation between a preset gas concentration of the combustible gas and the calculated humidity deviation, a calculated humidity of the atmosphere to be detected is corrected using the calculated humidity deviation to calculate a corrected humidity, and, when a concentration of the combustible gas is calculated on the basis of a terminal voltage, a temperature of the atmosphere to be detected, and a humidity of the atmosphere to be detected, the calculated corrected humidity is used for the humidity of the atmosphere to be detected calculated on the basis of terminal voltages across first and second heating resistors and the temperature of the detected temperature.
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patent: 6812708 (2004-11-01), Bristol
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patent: 2007-10594 (2007-01-01), None
Hamatani Shogo
Inoue Ryuji
Kitanoya Shoji
Larkin Daniel S
NGK Spark Plug Co. Ltd.
Sughrue & Mion, PLLC
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