Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 22, 2011
Patent Application Number
11990400
Date Filed
August 17, 2005
Patent Primary Examiner
Patent abstract
Object of the present invention is to provide a dust collecting device (100) for a vacuum cleaner of which dust collecting performance is improved. For this, the dust collecting device (100) includes a primary cyclone unit (110) having two parallel primary cyclones (111,112) for separating dust form air introduced therein by a cyclone principle, and a secondary cyclone (120) unit at a downstream of the primary cyclones (111,112) for cleaning the air again by the cyclone principle.
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