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.

Patent No.:

US 6889403 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2005

Filed:

Jan. 22, 2002
Applicants:

Mineyuki Inoue, Niigata-ken, JP;

Takeshi Yamada, Niigata-ken, JP;

Shuichi Taniguchi, Niigata-ken, JP;

Toshiaki Ogawa, Niigata-ken, JP;

Inventors:

Mineyuki Inoue, Niigata-ken, JP;

Takeshi Yamada, Niigata-ken, JP;

Shuichi Taniguchi, Niigata-ken, JP;

Toshiaki Ogawa, Niigata-ken, JP;

Assignee:

Twinbird Corporation, Niigata-Ken, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L009/16 ;
U.S. Cl.
CPC ...
Abstract

A cyclonic vacuum cleaner which suppresses the flow of dust-laden airflow to the outside of a dust collection container, even if fine or comparatively light dust particles ascend together with a vortex flow. Fine dust particles mixed in the vortex flow are captured by a filterof a first vent holeprovided at a lower end of a baseof a vortex flow generating memberIf the filteris clogged with such particles to some extent, yet the airflow inside a dust collection containeris allowed to pass through a second vent holeformed on the side surface of the baseof the vortex flow generating memberinto an intake holeAs a result, a constant amount of airflow is insured. Further, owing to a skirt portionprovided around the first vent holethe travel of the dust particles toward the second vent holecan be prevented even though the dust particles captured by the filterare carried on the vortex flow toward the second vent hole


Find Patent Forward Citations

Inoue, Mineyuki. (2005). Cyclonic vacuum cleaner (U.S. Patent No. 6889403). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6889403

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