Multi-stage aerator

Details Multi-stage aerator Multi-stage aerator

1997-11-19

1999-11-23

Bushey, C. Scott

Gas and liquid contact apparatus

Fluid distribution

Pumping

261 93, 2611212, B01F 304

Patent

active

059886005

ABSTRACT:
A high efficiency impeller-type aerator designed for aeration of the water supply of aquatic organisms. The aerator design includes a first impeller (booster), a second impeller (main impeller), and a pump casing having at least one water inlet, one air inlet, and one water outlet. The first and second impellers are disposed between the pump casing water inlet and outlet. The air inlet is positioned advantageously between the first impeller and the second impeller and is in communication with air, and wherein the water inlet and outlet are in communication with water. The efficiency of the pump is retained while the bubbles produced in accordance with the present invention are advantageously small.

REFERENCES:
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patent: 2246560 (1941-06-01), Weinig et al.
patent: 2577095 (1951-12-01), Walker
patent: 3806452 (1974-04-01), Walker
patent: 4193949 (1980-03-01), Naito
patent: 5213718 (1993-05-01), Burgess
patent: 5582777 (1996-12-01), Vento
patent: 5643503 (1997-07-01), Roland
patent: 5711902 (1998-01-01), Hsu

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