Liquid aerator

Details Liquid aerator Liquid aerator

1974-03-18

1976-12-14

Tollberg, Stanley H.

Fluid sprinkling, spraying, and diffusing

Fountains or drinking tubes and straws

E03B 920

Patent

active

RE0290750

ABSTRACT:
A floating liquid aerator includes an axial flow impeller rotated by an electric motor and disposed within a tubular throat to pump water from a pond upwardly through the throat and against a rotatable diffuser which slings the water outwardly for interface contact with the surrounding atmosphere. Being rotatable, the diffuser slings the water into the atmosphere with considerable turbulence thereby exposing more of the water droplets to the atmosphere and resulting in a higher transfer of oxygen to the water. The impeller comprises a series of angularly spaced blades formed with a rectangular cross-section to reduce power losses caused by drag and to increase the volume of water capable of being displaced by the impeller. Each blade is twisted longitudinally with a progressively decreasing attack angle from its root to its tip and, in addition, all of the blades are twisted identically to provide a statically, dynamically and hydrodynamically balanced impeller.

REFERENCES:
patent: 2067161 (1937-01-01), Durdin, Jr.
patent: 2090384 (1937-08-01), Durdin, 3rd
patent: 2186371 (1940-01-01), Durdin
patent: 3218042 (1965-11-01), Ciabattari et al.

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