# US 2023/0054027 A1 · Tool for cleaning inside of water tank

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- Number: US 2023/0054027 A1
- Document ID: US20230054027A1
- Status: Published application
- Kind: A1
- Application number: 17/797,331
- Filed: 2021-02-02
- Published: 2023-02-23
- Earliest claimed: 2020-03-23
- Assignees: Suisaku Kabushiki Kaisha
- Applicants: Suisaku Co. Ltd.
- Inventors: Yasuhiro OGAWA; Yutaka YOSHIDA
- Web page: https://patentgrep.com/patent/US20230054027A1

## CPC

- A01K 63/10: Cleaning bottoms or walls of ponds or receptacles
- B08B 1/165: {Scrapers}
- B08B 5/04: Cleaning by suction, with or without auxiliary action
- B08B 9/087: by methods involving the use of tools, e.g. brushes, scrapers ({B08B9/0808} , B08B9/20 take precedence)
- B08B 15/04: from a small area, e.g. a tool {(removing chips B23Q11/0042)}
- B08B 9/0933: {Removing sludge or the like from tank bottoms}
- B08B 2209/08: Details of machines or methods for cleaning containers, e.g. tanks
- Y02A 40/81: Aquaculture, e.g. of fish
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- B08B: CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

A tool for cleaning inside of a water tank utilizing a siphon action is provided in which a scraping tool (S) is pivotably provided at an upstream end of a suction pipe (P), a deposit (b) such as moss caked on a bottom face or a side face within the water tank is scraped off by a scraping blade (62) formed at an extremity of the scraping tool (S), and is removed by sucking up together with dirt (a).

## Claims

### Claim 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 and is pivotably provided at the outer end of the suction pipe, the scraping tool scraping off a deposit sticking to and deposited on a wall face within the water tank, and the scraping tool having formed therein 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 widely open to an exterior and communicates one of opposite faces of the scraping tool with the other face thereof.

### Claim 2 (depends on 1)

The tool for cleaning inside of a water tank according to claim 1, wherein a scraping blade spreading out in a fan shape is formed at the outer end of the scraping tool.

### Claim 3 (depends on 1)

The tool for cleaning inside of a water tank according to claim 1, wherein the suction pipe is provided with a suction operation tool that pressurizes or depressurizes an interior of a water passage between the upstream-side one-way valve and the downstream-side one-way valve.

### Claim 4 (depends on 2)

The tool for cleaning inside of a water tank according to claim 2, wherein the suction pipe is provided with a suction operation tool that pressurizes or depressurizes an interior of a water passage between the upstream-side one-way valve and the downstream-side one-way valve.