Dust collection unit of vacuum cleaner

Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing

Reexamination Certificate

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Details

C055S343000, C055S346000, C055S426000, C055S429000, C055SDIG030

Reexamination Certificate

active

07488363

ABSTRACT:
A dust collecting unit of a vacuum cleaner is provided. The dust collecting unit includes: a plurality of storing chambers and a plurality of filtering chambers provided in the inside of a multi-cyclone dust collecting unit. To improve reliability of the product, the storing chambers and the filtering chambers are integrally formed as one body.

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patent: 7361200 (2008-04-01), Oh et al.
patent: 2004/0088956 (2004-05-01), Gammack
patent: 201 09 699 (2001-11-01), None
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patent: 2 399 780 (2004-09-01), None
patent: 50-101012 (1975-07-01), None
patent: 2002326041 (2002-11-01), None
patent: 2 200 451 (2003-03-01), None
patent: 2 236 813 (2004-09-01), None
patent: WO 03/030702 (2003-04-01), None

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