Dust collection unit and vacuum cleaner with the same

Details Dust collection unit and vacuum cleaner with the same Dust collection unit and vacuum cleaner with the same

2005-08-30

2008-09-02

Smith, Duane (Department: 1797)

Gas separation

With nonliquid cleaning means for separating media

C055S283000, C055S289000, C055SDIG020, C055SDIG030, C015S347000, C015S352000, C015S353000

Reexamination Certificate

active

07419520

ABSTRACT:
A dust collection unit for a vacuum cleaner includes a dust collection container for collecting foreign objects contained in air introduced therein, covers defining a top and bottom of the dust collection container, and a filter-cleaning unit having a plurality of brushes rotating around the porous filter unit to remove the foreign objects clogging the outer surface of the porous filter unit.

REFERENCES:
patent: 3145164 (1964-08-01), Johkman
patent: 3246754 (1966-04-01), Sackett
patent: 4214878 (1980-07-01), Weiss
patent: 4983290 (1991-01-01), Schumann
patent: 6625845 (2003-09-01), Matsumoto et al.
patent: 970 604 (1958-10-01), None
patent: 1 059 636 (1959-06-01), None
patent: 1136028 (2001-09-01), None
patent: 2 558 712 (1985-08-01), None
patent: 2003-38398 (2003-02-01), None
patent: WO-02/38025 (2002-05-01), None

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