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:
Nov. 21, 2017

Filed:

Nov. 26, 2014
Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventors:

Morio Tomiyama, Nara, JP;

Hisaaki Gyoten, Osaka, JP;

Norihisa Mino, Osaka, JP;

Akira Taomoto, Kyoto, JP;

Atsushi Ono, Kyoto, JP;

Stephen William John, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/04 (2006.01); B01D 1/00 (2006.01); B01D 1/22 (2006.01); B01D 3/42 (2006.01); C02F 1/08 (2006.01); B01D 5/00 (2006.01); C02F 103/08 (2006.01);
U.S. Cl.
CPC ...
C02F 1/043 (2013.01); B01D 1/00 (2013.01); B01D 1/22 (2013.01); B01D 3/42 (2013.01); B01D 5/0027 (2013.01); C02F 1/08 (2013.01); C02F 2103/08 (2013.01); C02F 2209/02 (2013.01); C02F 2209/42 (2013.01); Y02W 10/37 (2015.05);
Abstract

A water amount controlling method according to the present disclosure includes: opening a discharge valve that discharges a liquid from a water tank if an impurity concentration is higher than or equal to a first reference value, and opening a sluice gate that introduces the liquid to the water tank a predetermined period after opening the discharge valve, the first reference value being lower than a saturation concentration; throttling the discharge valve and the sluice gate if the impurity concentration is higher than or equal to a second reference value and the temperature is lower than or equal to a third reference value, the second reference value being lower than the first reference value; and closing the discharge valve if the impurity concentration is lower than the second reference value, and closing the sluice gate a predetermined period after closing the discharge valve.


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