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:
Jul. 09, 2024

Filed:

Aug. 26, 2022
Applicant:

Toto Ltd., Kitakyushu, JP;

Inventors:

Hideki Tanimoto, Kitakyushu, JP;

Koki Shinohara, Kitakyushu, JP;

Kenji Hatama, Kitakyushu, JP;

Seika Tatsuoka, Kitakyushu, JP;

Assignee:

TOTO LTD., Kitakyushu, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E03D 1/34 (2006.01); E03D 1/30 (2006.01);
U.S. Cl.
CPC ...
E03D 1/34 (2013.01); E03D 1/304 (2013.01);
Abstract

The present invention provides a flush water tank device (), including: a flush water tank (); a discharge valve () that causes the lower spout port to eject the flush water by switching between discharge and stopping of the flush water; a water pressure driving mechanism () that drives the discharge valve with a water supply pressure; a first on-off valve () that switches between water ejection and stopping of the flush water; a second on-off valve () that switches between water supply and stopping of the flush water to the water pressure driving mechanism; and a delay valve opening mechanism () that causes the second on-off valve to open with a delay of predetermined time after water ejection from the upper spout port is started, using a part of the flush water introduced via the first on-off valve, to supply the flush water to the water pressure driving mechanism.


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