BLOWER FILTER SYSTEM
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United States of America Patent
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Issued Date -
Apr 28, 2016
app pub date -
Oct 26, 2015
filing date -
Oct 27, 2014
priority date (Note) -
Published
status (Latency Note)
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Abstract
A blower filter system (2) has a blower filter device (4) with a housing (56), an air inlet (50), an air outlet (52) and an air duct (54) extending between the air inlet (50) and the air outlet (52) in the housing (56). A blower (6), associated with the air duct (54), delivers air from the air inlet (50) to the air outlet (52). An air filter (16) and a carrying system (18) can be connected to the blower filter device (4). A tube (24) extends from the air outlet (52) to a breathing mask (20). A sound emission unit (64) is associated with the blower filter device (4). A wall section (58) of the air duct (54) is formed by an acoustic membrane (60) for coupling sound into the air duct (54). The sound emission unit (64) is arranged in the housing (56) of the blower filter device (4).
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