Water pumping device

Details Water pumping device Water pumping device

1978-09-22

1981-01-27

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

405 61, F04B 4906

Patent

active

042472610

ABSTRACT:
A venturi-type water pumping device is provided which is immersible in a body of water to pump warm water from its lower depths toward its surface to maintain the water surface free of ice. The water pumping device comprises a hollow, generally cylindrical housing having opposite outwardly flared ends with a propeller and drive motor mounted within the housing. When the device is suspended in a body of water and the propeller rotated, warm water is drawn upwardly through the housing and emerges as a column of water directed upwardly toward the water surface. The water pumping device is adapted to be suspended either vertically or at an angle to the vertical. The device is also adapted to operate while at rest on the bottom of the body of water.

REFERENCES:
patent: 1683949 (1928-09-01), Bergdoll
patent: 2860835 (1958-11-01), Schade
patent: 2991622 (1961-07-01), Oster
patent: 3083538 (1963-04-01), Gross
patent: 3309846 (1967-03-01), Schneider
patent: 3320160 (1967-05-01), Welles et al.
patent: 3540222 (1970-11-01), Mendelson
"Changing Our Climate" by Camille Rougeron, The Detroit News, Thursday, Dec. 19, 1957.

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