Muffler unit for fume extractor hood
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United States of America Patent
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Feb 5, 2013
Grant Date -
Jan 26, 2012
app pub date -
Feb 17, 2010
filing date -
Feb 19, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A muffler unit for a fume extractor hood includes an active noise suppression system, at least one loudspeaker, and at least two microphones connected to a control unit, and a passive noise suppression system having sound-absorbent material disposed between the microphones. The muffler unit further includes a conduit with upper fixing element and lower fixing element designed to be removably fixed to a motor unit and to a conveyor plate of the hood.
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Cited Art Landscape
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