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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 4620931 B1

PDFFull Text
Date of Patent:
Nov. 04, 1986

Filed:

Sep. 11, 1985

Three phase fluidized bed water purifying process

Applicant:
Inventors:

Akira Hirata, Tokyo, JP;

Hajime Nagayama, Hino, JP;

Akinori Watanabe, Tokyo, JP;

Kouji Nitta, Onoda, JP;

Kenji Shimaji, Onoda, JP;

Assignees:

Waseda University, Tokyo, JP;

Onoda Cement Company, Ltd., Onoda, JP;

Attorney:

Tilton, Fallon, Lungmus & Chestnut

Primary Examiner:

Benoit Castel

Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210617 ; 210150 ; 2105101 ; 106D / ;
Abstract

A three phase fluidized bed water purifying process comprises purifying effluents in a three phase fluidized bed composed of solid particles, an effluent, and a gas in fluidized state, the solid particles being made by mixing a binder with an inorganic material based on aluminium silicate, granulating the resulting mixture, and firing the granules to sinter them. The present invention permits the purification of effluent for a long period of time without oxygen deficiency.

Find Patent Forward Citations

Hirata, Akira. (1986). Three phase fluidized bed water purifying process (U.S. Patent No. 4620931). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4620931

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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