Airflow calibrator
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United States of America Patent
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Jul 12, 2022
Grant Date -
May 28, 2020
app pub date -
May 15, 2018
filing date -
May 15, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
An airflow calibrator 10 may generally comprise an inlet 15 in fluid communication with an outlet 20 to define a flow path 30 of a fluid through the airflow calibrator 10; a face seal valve 40 in fluid communication with the inlet 15; a removable flow cell 50 in fluid communication with the face seal valve 40; a variable restrictor valve 60 in fluid communication with the removable flow cell 50; and an optical sensor array 70 to determine the airflow, i.e., flow rate, of an air sampling pump in fluid communication with the airflow calibrator. Methods of using the airflow calibrator are also described.
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