Dust separation in vacuum cleaners
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United States of America Patent
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May 14, 2019
Grant Date -
Sep 17, 2015
app pub date -
Aug 8, 2013
filing date -
Aug 10, 2012
priority date (Note) -
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Abstract
A dust separator/collector assembly for a vacuum cleaner, comprising a housing, a first cyclone having an inlet and outlet for suction airflow, and an outlet for separated dust, a plurality of second cyclones, having respective inlets arranged to receive air from the outlet of the first cyclone, and further having respective air outlets and outlets for separated further dust, wherein the first cyclone is disposed in a lower region of the housing and the second cyclones are disposed in an upper region of the housing and wherein the first cyclone comprises a generally cylindrical cyclone body having a tangential inlet duct for suction airflow at a lower part of the cyclone body, and an upwardly extending outlet for suction airflow leading to the inlets of the second cyclone.
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