Filtration apparatus with bag-like plenum chamber
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United States of America Patent
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May 17, 1994
Grant Date -
N/A
app pub date -
Mar 12, 1993
filing date -
Mar 12, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An air filtering apparatus includes a fan body having an air intake and an air outlet. There is a fan within the body which draws air into the intake and forces it out of the outlet. There is at least one air filter between the intake and the outlet. A plenum chamber is connected to the fan body about the air outlet. The plenum chamber is a flexible bag of a sheet-like material which is inflated by air forced out of the outlet of the fan body. At least a portion of the plenum chamber is an air diffuser for air exiting the apparatus. The diffuser is more permeable than the filter.
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