Flow timer for a sampling apparatus
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United States of America Patent
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Jun 5, 2018
Issued Date -
N/A
app pub date -
Jun 2, 2015
filing date -
Jun 2, 2014
priority date (Note) -
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Abstract
Sampling systems provide apparatuses for obtaining and assessing the composition of a fluid, typically air. Sampling systems allow industrial hygienists to assess the risks and determine the protective equipment that should be worn by personnel entering a specific environment. In one embodiment, a sampling system comprises a sampling container that draws air into its inner volume and the sampling periods are controlled by an automatic timer valve. The automatic timer valve may comprise a rotating disk or plate that provides fluid communication from the area to be sampled to the inner volume of the sample bag when apertures are aligned with inlet tube.
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