Dust collection apparatus for vacuum cleaner

Details Dust collection apparatus for vacuum cleaner Dust collection apparatus for vacuum cleaner

2006-03-03

2009-10-06

Hopkins, Robert A (Department: 1797)

Gas separation

Plural serial basically diverse separating media

Plural stages in unitary casing

C055S424000, C055S429000, C055S456000, C055SDIG030

Reexamination Certificate

active

07597730

ABSTRACT:
A dust collecting apparatus for a vacuum cleaner including a cyclone body provided with a cyclone chamber and a contaminant collecting chamber formed therein, a cyclone case provided in the cyclone body having the cyclone chamber and the contaminant collecting chamber separated from each other; an air inflow tube penetrating an outer wall of the cyclone body such that a suction passage at an outside of the cyclone body is fluidly communicated with a lower end of the cyclone chamber; and an air outlet tube penetrating sequentially a bottom of the cyclone case and a bottom the cyclone body to guide the air discharged from the cyclone chamber to a discharge passage placed at an outside of the cyclone body, wherein the contaminant collecting chamber is connected to the cyclone chamber through a contaminant discharge port formed at a side surface of upper end of the cyclone chamber.

REFERENCES:
patent: 7395579 (2008-07-01), Oh
patent: 7422615 (2008-09-01), Kim
patent: 1743560 (2007-01-01), None
patent: 2376175 (2002-12-01), None
patent: 2398734 (2004-09-01), None
patent: 2406064 (2005-03-01), None
patent: 2420514 (2006-05-01), None
British Search Report dated Jun. 19, 2006 issued in connection to corresponding British Patent Application No. 0605869.7 filed on Mar. 23, 2006.
Examination Report dated Apr. 28, 2008 corresponding to United Kingdom Patent Application No. 0605869.7.

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