Swimming pool cleaning device
OwnerHuaiping Wanginventor
Life of this patent
Estimating the term…
Abstract
The swimming pool cleaning device is a submergible structure for drawing water from a tank, such as a swimming pool, to be cleaned, and further for cleaning a submerged surface of the tank, such as the swimming pool floor. The swimming pool cleaning device includes a pair of suction tubes, which communicate with a pressurized source, such as a pump, to suck water from the swimming pool for cleaning and later return to the swimming pool. A flapper valve controls entry of water into the suction tubes, alternating water flow between one tube and the other. The oscillatory flow between the two suction tubes imparts horizontal momentum to the swimming pool cleaning device, allowing the swimming pool cleaning device to travel along a surface of the pool without further user-provided motive force.
Claims20
A swimming pool cleaning device, comprising:
- first and second suction tubes, each of the tubes having opposed upper and lower ends;
- a head portion defining an open inner chamber, the head portion having a lower wall, the lower wall having a water inlet formed therethrough, each of the first and second suction tubes being mounted on the head portion and being in fluid communication with the open inner chamber;
- a base plate mounted within the open inner chamber, the base plate separating the open inner chamber into an upper chamber and a lower chamber, the base plate having first and second openings formed therethrough, the first opening being aligned with the first suction tube and the second opening being aligned with the second suction tube;
- a connector portion in fluid communication with the upper ends of the first and second suction tubes, the connector portion being adapted for fluid-tight connection to an external pressurized source;
- and
- a head valve pivotally mounted within the head portion, the head valve pivoting between a first position blocking fluid flow into the second suction tube while permitting fluid flow into the first suction tube, and a second position blocking fluid flow into the first suction tube while permitting fluid flow into the second suction tube;
- whereby, when the swimming pool cleaning device is submerged in fluid and the connector portion is connected to the external pressurized source, the fluid is drawn into the open inner chamber through the water inlet, and the head valve oscillates to alternately permit the fluid to flow into the first and second suction tubes as pressure in the upper chamber on opposite sides of the head valve rises and drops, the fluid being drawn through the connector portion for purification, the oscillating fluid flow through the first and second suction tubes driving the head portion in a substantially horizontal direction across a swimming pool floor.
Dependencies are inferred from the claim text.