CYCLONE-TYPE DUST COLLECTING APPARATUS (VERSIONS) AND FILTER FOR THE SAME Russian patent published in 2008 - IPC A47L9/16 A47L5/22 

FIELD: vacuum cleaner, in particular, cyclone-type dust collecting apparatus placed within vacuum cleaner.

SUBSTANCE: cyclone-type dust collecting apparatus has two filtering chambers, with second filtering chamber being designed for separating dust from dust-laden air passed through first filtering chamber. Filter placed within first filtering chamber separates foreign matter on its outer surface. Filter is made in the form of cone having diameter reducing downward, and comprises a plurality of openings allowing air to be admitted through said openings but preventing foreign matter from passage through said openings. Slot formed lengthwise of filter is designed for cleaning filter from foreign matter settled thereon.

EFFECT: construction of apparatus providing easy removal of foreign matter settled on outer circumference of filter, and construction of filter allowing foreign matter tightly lodged on filter outer circumference to be removed using simple tools without applying substantial outer force.

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