Ventilation unit for a flame photometric detection device
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United States of America Patent
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Oct 1, 1991
Grant Date -
N/A
app pub date -
Sep 12, 1990
filing date -
Sep 12, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A ventilation unit for a flame photometric detector that utilizes a vent tube, which communicate with the combustion chamber of the detection device and a cap which fits onto the tube to form a tortuous light path, such that the escape of combustion products through the vent tube does not allow extraneous light to enter the combustion chamber, a series of threads and tabs on the tube and cap allow the cap to be threaded onto yet to fit loosely about the tube.
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