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:
May. 17, 2022
Filed:
Mar. 25, 2021
Toto Ltd., Kitakyushu, JP;
Hidekazu Kitaura, Kitakyushu, JP;
Nobuhiro Hayashi, Kitakyushu, JP;
Akihiro Shimuta, Kitakyushu, JP;
Masahiro Kuroishi, Kitakyushu, JP;
TOTO LTD., Fukuoka, JP;
Abstract
The flush water tank apparatus of the present invention includes: a clutch mechanismcoupling the discharge valveand the discharge valve hydraulic drive unitto pull up the discharge valve, and being disconnected at a predetermined timing to cause the discharge valve to descend; flush water amount selection device capable of selecting from a first and a second amounts of flush water; a float deviceincluding a float and a holding mechanism switchable between a holding and a non-holding states in conjunction with movement of the float; and a timing control mechanism controlling a timing of a drain portbeing blocked; and, when the second amount is selected, causes the second amount of flush water to be discharged by switching the holding mechanism to the non-holding state before a water level in a storage tank drops to a predetermined water level.