Apparatus for aerating and maintaining an ice free surface area

Details Apparatus for aerating and maintaining an ice free surface area Apparatus for aerating and maintaining an ice free surface area

1980-05-21

1981-07-21

Granger, Theodore A.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Floatable matter containment

E02B 1502

Patent

active

042795370

ABSTRACT:
The apparatus comprises an air diffusion or dispersion unit mounted on a weighted concrete base submerged at the bottom of a body of water. The unit has a vertical pipe upstanding from the concrete base. An air line extends from an air compressor on shore into the bottom of the vertical pipe where it collects air and releases it periodically from the top of the pipe in a series of relatively large volume, intermittent, discharges into the water. A check valve is located in the air line or diffusion unit to prevent back flow of water to below-freezing locations where the air line extends through ice at the water surface.

REFERENCES:
patent: 3129565 (1964-04-01), Bellamy
patent: 3193260 (1965-07-01), Lamb
patent: 3293861 (1966-12-01), Hinde
patent: 3318098 (1967-05-01), Heddinett et al.

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