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 6820446 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 23, 2004

Filed:

Jan. 16, 2002
Applicant:
Inventors:

Nobushige Arai, Osaka, JP;

Hirofumi Yoshikawa, Osaka, JP;

Shinya Takagi, Osaka, JP;

Ichiro Ohshima, Osaka, JP;

Rie Hiramoto, Osaka, JP;

Mugihei Ikemizu, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06B 2/320 ;
U.S. Cl.
CPC ...
D06B 2/320 ;
Abstract

A polluted water purifier for collecting a pollutant present in polluted water by flocculating the pollutant with a flocculant has a mixer for mixing the polluted water with the flocculant F and air, an agitator for agitating the polluted water, containing the flocculant F and the air, that flows into a cylindrical agitation chamber along the inner surface thereof by making the polluted water into a spiraling stream so that the flocks formed by the flocculant F hold bubbles, and a separator and , connected to the agitator , for temporarily storing the polluted water and for separating the flocks holding the bubbles.


Find Patent Forward Citations

Arai, Nobushige. (2004). Sewage disposal agent, sewage purifier, washing machine with purifier, and sewage purifying method (U.S. Patent No. 6820446). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6820446

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