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.:
Date of Patent:
Aug. 23, 2022
Filed:
Jun. 09, 2021
Toto Ltd., Kitakyushu, JP;
Hidekazu Kitaura, Kitakyushu, JP;
Nobuhiro Hayashi, Kitakyushu, JP;
Akihiro Shimuta, Kitakyushu, JP;
Masahiro Kuroishi, Kitakyushu, JP;
Hiroshi Hashimoto, Kitakyushu, JP;
Koki Shinohara, Kitakyushu, JP;
Kenji Hatama, Kitakyushu, JP;
TOTO LTD., Fukuoka, JP;
Abstract
There are provided a flush water tank apparatus capable of reducing a pressure of flush water in a pressure chamber easily, and a flush toilet apparatus provided with the same. A discharge valve hydraulic drive portion of a flush water tank apparatus includes a cylinder in which supplied the flush water flows, a piston that is slidably disposed in the cylinder, partitions inside of the cylinder into a pressure chamber and a back pressure chamber, and further is moved from a first position to a second position by a pressure of the flush water that has flowed into the pressure chamber, an outflow portion from which the flush water in the cylinder flows out, and a communication mechanism that establishes communication between the pressure chamber and the outflow portion after the clutch mechanism is disengaged.