Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 16, 2009
1Patent Application Number
113174531
Date Filed
December 23, 2005
1Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A multi dust-collecting apparatus for a vacuum cleaner separating dirt particles from air by taking two steps. The multi dust-collecting apparatus includes a dust-collecting unit to separate dirt particles from the air by using gravity and inertia, and a plurality of cyclones to swirl the air discharged from the dust-collecting unit and separate the dirt particles from the air by using centrifugal force.
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