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 7047594 B1

PDF
Full Text
Expired
Date of Patent:
May. 23, 2006

Filed:

Feb. 20, 2003
Applicant:

Mineyuki Inoue, Niigata-ken, JP;

Inventor:

Mineyuki Inoue, Niigata-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L 9/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A cyclonic vacuum cleaner having a simple structure with low airflow leakage and excellent maintainability despite its long suction passage. A dust-collecting portionincludes a cyclonic portionwhich is approximately cylinder-shaped, having a bottom and an introducing portionfor introducing dust-laden airflow to the cyclonic portionThe cyclonic portionand the introducing portionare integrally formed and then a vortex flow generating memberis provided in the dust-collecting portionThus, the structure of the dust-collecting portion can be simplified and thus the dusts can be dumped by detaching the dust-collecting portiontogether with the introducing portionConsequently, maintenance can be easily performed. Further, as the number of joints can be reduced, possibility of airflow leakage within the suction passage is reduced, so that dust-collecting performance can be enhanced.


Find Patent Forward Citations

Inoue, Mineyuki. (2006). Cyclonic vacuum cleaner (U.S. Patent No. 7047594). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7047594

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