US 5,706,539 AGranted

Water tank cleaning machine

OwnerKakutaro Fukudainventor

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Abstract

The invention relates to a water tank cleaning machine used in cleaning operation of water tank such as aquarium, swimming pool and bathtub, characterized by rotating a suction impeller pivoted on a second suction chamber by rotating device, sucking storage water in the water tank through each suction port formed in first suction chamber and second suction chamber, transmitting the torque of the rotating device to wiping device through power transmission device, and stopping the wiping device only due to resistance caused at the time of contact if a hand of the worker or aquatic creature or other object contacts with the wiping device, thereby preventing injury of the object, so that it is easy to handle and safe, and moreover, since the water tank is cleaned while filtering the storage water, contamination of storage water during cleaning work is prevented, and the water quality and environments suited to rearing of aquatic life such as fishes and mammals can be maintained, and further, since the water tank can be cleaned while holding the storage water therein, the labor of discharging or replacing storage water is omitted, and the inner wall and deposits of the water tank can be cleaned easily, thereby enhancing the working efficiency and cleaning efficiency.

Claims3

Dependent claims

A water tank cleaning machine for cleaning a submerged surface of the tank, said machine comprising:

(a) a main body with an internal space having a hollow shape which is divided into a first suction chamber and a second suction chamber, said main body having a suction port formed in both the first and second suction chambers at a front side thereof and a discharge port formed in the second suction chamber at a rear side thereof, said main body further having a cleaning filter chamber formed therein;
(b) a suction impeller located at a rear position of the suction port formed in the second suction chamber, said suction impeller being coupled with a rotating means which is incorporated in the main body;
(c) a wiping means located at a front side of the main body and at a front position side of the suction port formed in the first suction chamber;
(d) power transmission means located within the main body for transmitting the torque of the rotating means to the wiping means;
and
(e) whereby rotation of the suction impeller by the rotating means sucks in storage water in the tank through the suction ports and into said cleaning filter chamber, after which the filtered storage water is directed to said discharge port and back into the tank, the rotating means also rotating said wiping means through said power transmission means to clean internal surfaces of the tank.

3 more elements

Dependencies are inferred from the claim text.