Vacuum cleaner

Details Vacuum cleaner Vacuum cleaner

2007-03-06

2007-03-06

Hopkins, Robert (Department: 1724)

Gas separation

Multiple separators, each with discrete and longitudinally...

Combined serial and parallel arrangement

C055S429000, C055S433000, C055S466000, C055SDIG030, C015S352000, C015S353000

Reexamination Certificate

active

10467671

ABSTRACT:
A cyclonic vacuum cleaner includes a separating unit for separating dirt and dust from a dirt-laden airflow which is drawn in by the cleaner. The separating unit has a chamber with a collection area for collecting dirt and dust which is separated from the airflow. A base of the separating unit is movable between a closed position in which the closure member seals the chamber and an open position by operation of a releasing means. The releasing means is inhibited from releasing the base when the unit is stowed on the chassis of the cleaner.

REFERENCES:
patent: 3040362 (1962-06-01), Krammes
patent: 4571772 (1986-02-01), Dyson
patent: 5090976 (1992-02-01), Dyson
patent: 5781962 (1998-07-01), Fiegel et al.
patent: 6192550 (2001-02-01), Hamada et al.
patent: 6502278 (2003-01-01), Oh et al.
patent: 0-042-723 (1981-12-01), None
patent: 1 023 864 (2000-08-01), None
patent: 2-344-746 (2000-06-01), None
patent: WO-98/10691 (1998-03-01), None

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