Measuring and testing – Gas analysis – By thermal property
Reexamination Certificate
2005-08-16
2005-08-16
Williams, Hezron (Department: 2856)
Measuring and testing
Gas analysis
By thermal property
C073S023350, C073S025010, C073S025050, C096S101000, C096S105000, C096S106000, C422S083000, C422S089000
Reexamination Certificate
active
06928858
ABSTRACT:
A thermal conductivity detector includes separate sample gas and reference gas chambers. Each chamber has a gas inlet and a gas outlet and a sensor. The chambers are connected by at least one passageway. For example, a passageway can extend from the sample gas chamber to the reference gas chamber adjacent the gas inlets. As a further example, a passageway can be provided adjacent the gas outlets. More specifically, an exhaust passageway extends from the first passageway to the additional passageway and there is an exhaust outlet connected to the additional passageway.
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Agilent Technologie,s Inc.
Rogers David A.
Williams Hezron
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