Apparatus and methods for gas sampling
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United States of America Patent
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Aug 13, 2002
Grant Date -
N/A
app pub date -
Mar 13, 2000
filing date -
Jul 5, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed a gas sampling apparatus (10) adapted for use in a hand-held gas sensing device (12) having at least one gas sensor (14), the apparatus comprising: a gas inlet (16); a gas conductor (18) for conducting gas from the gas inlet to the sensor or sensors; a gas outlet (20), a gas conductor (22) for conducting gas from the sensor or sensors to the gas outlet; and a vacuum containment (24) enclosing an inner region having a pressure below atmospheric pressure and adapted for connection to the gas outlet so that a flow of gas is developed from the gas inlet to the vacuum containment.
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