A multi cyclone dust collector for a vacuum cleaner

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EP 1 774 890 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	12.12.2007 Bulletin 2007/50

(43)	Date of publication A2:
	18.04.2007 Bulletin 2007/16

(21)	Application number: 06291062.5

(22)	Date of filing: 27.06.2006

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International Patent Classification (IPC):

A47L 9/16^(2006.01)

B04C 5/13^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

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Priority:

11.10.2005 US 725609
28.10.2005 KR 20050102615
07.02.2006 KR 20060011668

(71)	Applicant: Samsung Gwangju Electronics Co., Ltd.
	Gwangju-city (KR)

(72)	Inventors:
	Oh, Jang-keun, c/o 201-708, Haetae Apt. Gwangju-city (KR) Han, Jung-gyun, c/o 501-1604, Hoban 5th Berdium Gwangju-city (KR) Kim, Tak-soo, c/o 102-1104, seonghwa Fine Ville Gwangju-city (KR)

(74)	Representative: Blot, Philippe Robert Emile et al
	Cabinet Lavoix 2, place d'Estienne d'Orves 75441 Paris Cedex 09 75441 Paris Cedex 09 (FR)

(54)	A multi cyclone dust collector for a vacuum cleaner

(57) A multi-cyclone dust collector including at least one first cyclone (10) forcing contaminants-laden air that is entered into a lower portion (22) of the at least one first cyclone (10) to whirl so as to centrifugally separate contaminants from the contaminants-laden air; and at least one second cyclone (60) being disposed around the at least one first cyclone (10), the at least one second cyclone (60) forcing semi-clean air that is discharged from the at least one first cyclone (10) and is entered into a lower portion of the at least one second cyclone (60) to whirl so as to centrifugally separate fine contaminants from the air.

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