Flush water tank apparatus and flush toilet apparatus provided with the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12037779
SERIAL NO

17464063

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Importance

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Abstract

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A flush water tank apparatus has a reservoir tank, a discharge valve, a discharge valve hydraulic drive portion configured to drive the discharge valve, and a discharge/vacuum break valve device configured to supply the water supplied from the upstream side to the discharge valve hydraulic drive portion on a downstream side. The discharge valve hydraulic drive portion includes a cylinder, and a piston configured to be moved by a pressure of the water flowing into the cylinder to move the discharge valve. The discharge/vacuum break valve device includes a valve body that operates to discharge the water flowing backward from the discharge valve hydraulic drive portion while opening the upstream side to an atmosphere when the supply of the water from the upstream side is stopped.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
TOTO LTDFUKUOKA PREFECTURE FUKUOKA

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hashimoto, Hiroshi Kitakyushu, JP 452 4032
Hatama, Kenji Kitakyushu, JP 15 23
Hayashi, Nobuhiro Kitakyushu, JP 108 887
Kitaura, Hidekazu Kitakyushu, JP 22 45
Kuroishi, Masahiro Kitakyushu, JP 25 220
Shimuta, Akihiro Kitakyushu, JP 9 20
Shinohara, Koki Kitakyushu, JP 21 54
Yoshioka, Takashi Kitakyushu, JP 101 1354

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