The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 22, 2003

Filed:

Dec. 10, 2001
Applicant:
Inventor:

Dongqi Qian, Suzhou, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 4/512 ;
U.S. Cl.
CPC ...
B01D 4/512 ;
Abstract

The present invention is to provide a device for a vacuum cleaner including a cyclone separator having a cyclone comprising a first end wall; a second end wall opposite to the first end wall; an intermediate part between the first end wall and the second end wall, being shaped as either a cylinder or a partially truncated cone. The cyclone separator further includes an air suction inlet close to the first end wall and substantially tangential to the inner surface of the intermediate part, and a vacuum suction opening far away from the first end wall connected to a vacuum source route. An opening for a dust outlet channel is provided on the second end wall in such a manner that a dust separated from the dust outlet moves in a direction which forms an angle of &agr; less than 90° with an axis R of rotation of a vortex created by the cyclone separator comprising the first end wall and the second end wall, and enters a dust collecting chamber through the dust outlet channel connected to the dust collecting chamber.


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