Disposable pneumotachograph flowmeter
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United States of America Patent
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Oct 25, 1994
Grant Date -
N/A
app pub date -
May 17, 1993
filing date -
May 17, 1993
priority date (Note) -
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Abstract
A disposable pneumotachograph flowmeter comprises first and second tubular mouthpiece members which, when juxtaposed relative to one another, sandwich a fabric screen made from a hydrophobic material therebetween. The screen may comprise a woven fabric formed from expanded PTFE fibers or, alternatively, may be a non-woven mat of polyester fibers. Because of the properties of the screen material, it does not become clogged and occluded with moisture particles during use.
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