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:
Sep. 30, 2003

Filed:

Dec. 12, 2000
Applicant:
Inventors:

Tatsuya Hirota, Kyoto, JP;

Yoshihiro Inamoto, Otsu, JP;

Kiyokazu Fujikawa, Inukami-gun, JP;

Yozo Kawamura, Kouka-gun, JP;

Minoru Nakanishi, Otsu, JP;

Minoru Kishi, Kusatsu, JP;

Takaaki Yonezawa, Kusatsu, JP;

Tamotsu Kawamura, Yokaichi, JP;

Kazuhiro Yamamoto, Kasai, JP;

Yasuhiko Shimizu, Ora-machi, JP;

Yasuhito Kondo, Oizumi-machi, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/461 ;
U.S. Cl.
CPC ...
C02F 1/461 ;
Abstract

The present invention is directed to a new water treatment device comprising an electrolytic tank to put water in, an electrode provided in the electrolytic tank, a water treating path for pouring water in a pool and returning to the pool the water in the electrolytic tank, a residual chlorine sensor for measuring the residual chlorine concentration of water, and control means for controlling the energization of the electrode on the basis of the measured value by the residual chlorine sensor, and capable of simply and efficiently sterilizing water stored in pools of various sizes from a swimming pool to a home bathtub.


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