US 12,213,463 B2
Tool for cleaning inside of water tank
Yasuhiro Ogawa, Tokyo (JP); and Yutaka Yoshida, Tokyo (JP)
Assigned to Suisaku Co., Ltd., Tokyo (JP)
Appl. No. 17/797,331
Filed by SUISAKU CO. LTD., Tokyo (JP)
PCT Filed Feb. 2, 2021, PCT No. PCT/JP2021/003663
§ 371(c)(1), (2) Date Aug. 3, 2022,
PCT Pub. No. WO2021/192619, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2020-051758 (JP), filed on Mar. 23, 2020.
Prior Publication US 2023/0054027 A1, Feb. 23, 2023
Int. Cl. A01K 63/10 (2017.01); B08B 1/16 (2024.01); B08B 5/04 (2006.01); B08B 9/08 (2006.01); B08B 9/087 (2006.01); B08B 15/04 (2006.01); B08B 9/093 (2006.01)
CPC A01K 63/10 (2017.01) [B08B 1/165 (2024.01); B08B 5/04 (2013.01); B08B 9/087 (2013.01); B08B 15/04 (2013.01); B08B 9/0933 (2013.01); B08B 2209/08 (2013.01); Y02A 40/81 (2018.01)] 5 Claims
OG exemplary drawing
 
1. A tool for cleaning inside of a water tank, the tool comprising a suction pipe that is formed by connecting a grip portion to an upper end of a main body portion formed so as to have a length that reaches from an outside of a water tank to a bottom of the water tank, a flexible water conduit pipe connected to an outer end of the suction pipe, and an upstream-side one-way valve and a downstream-side one-way valve that are provided within the suction pipe across a gap and allow water to flow only from the suction pipe to the water conduit pipe, water tank water within the water tank being sucked up by virtue of a siphon action and discharged to the outside of the water tank,
wherein a scraping tool being formed into a spatula shape with a face A and a face B and is pivotably provided at the outer end of the suction pipe, the scraping tool being configured to scrape off a deposit sticking to and deposited on a wall face within the water tank, and the scraping tool having formed in a center part thereof an opening part forming a guideway guiding the deposit scraped off to the suction pipe so that the opening part is open to an exterior and communicates the face A with the face B,
wherein a scraping blade is formed at the outer end of the scraping tool, and
wherein the scraping blade of the scraping tool is configured to abut against a bottom wall face of the water tank so that when the scraping blade is moved in a direction parallel to the bottom wall face of the water tank deposit on the bottom wall face, including any moss caked thereon, is scraped off, at the same time the deposit scraped off and dirt on the bottom wall face will be sucked up into the suction pipe through the opening part, and when gravel is disposed on the bottom wall face the gravel will not interfere with the scraping of the scraping blade.