Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

2007-10-30

2009-10-13

Redding, David A (Department: 3723)

Brushing, scrubbing, and general cleaning

Machines

With air blast or suction

C015S353000, C015SDIG012, C055S429000, C055S459100, C055SDIG030

Reexamination Certificate

active

07600293

ABSTRACT:
There is provided a vacuum cleaner. The vacuum cleaner includes a dust separation part separating dust contained in air; a dust storing part storing dust separated by the dust separation part; a compression unit dividing the dust separation part and dust storing part, for compressing dust stored in the dust storing part; a motor connection passage communicated with a motor generating a negative pressure; a compression passage communicated with the dust storing part; a dust collection passage communicated with the dust separation part; and a flow passage control unit selectively opening and closing the compression passage and the dust collection passage.

REFERENCES:
patent: 4363156 (1982-12-01), Leinfelt et al.
patent: 2006/0010641 (2006-01-01), Nam et al.
patent: 1 136 028 (2001-09-01), None
patent: 1 283 021 (2003-02-01), None
patent: 59-36520 (1984-02-01), None
patent: 05-317215 (1993-12-01), None
patent: 7-313412 (1995-12-01), None
patent: 2002-051950 (2002-02-01), None
patent: 2004-89264 (2004-03-01), None
patent: 10-1995-16642 (1995-07-01), None
patent: 10-1996-0001804 (1996-02-01), None

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