Cyclone dust collecting apparatus of vacuum cleaner

Details Cyclone dust collecting apparatus of vacuum cleaner Cyclone dust collecting apparatus of vacuum cleaner

2007-11-20

2007-11-20

Hopkins, Robert A. (Department: 1724)

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

C055S429000, C055S459100, C055SDIG030, C055SDIG034, C096S417000

Reexamination Certificate

active

10836387

ABSTRACT:
A cyclone dust collector of a vacuum cleaner includes a lower cyclone body for initially separating dust entrained in air drawn in through an air suction port, an upper cyclone body for separating fine dust entrained in the air that has been initially filtered in the lower cyclone body, and a central air path for guiding the air which is filtered in the upper cyclone body along a center axis line, and discharging the air through an air discharge port in the lower cyclone body. The capability of the vacuum cleaner can be improved by circulating the drawn in air having the entrained dust in the lower and upper cyclone bodies, and separately and sequentially collecting the dust at least partially based on the particle size thereof.

REFERENCES:
patent: 5135552 (1992-08-01), Weistra
patent: 6607572 (2003-08-01), Gammack et al.
patent: 2368269 (2002-05-01), None
patent: 1020020000415 (2002-01-01), None
patent: WO 02/067756 (2002-09-01), None

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