Aeration apparatus and method

Details Aeration apparatus and method Aeration apparatus and method

1989-04-05

1991-01-01

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Liquid tank

239 23, 239505, 2102422, 261DIG79, B01F 304

Patent

active

049816225

ABSTRACT:
A high volume aeration device comprises a motor and propeller tube suspended in a pond by a float. A propeller on the motor shaft and inside the propeller tube creates a generally hollow water output stream that rises out of the propeller tube. A diffuser plate is longitudinally slidable inside the hollow water output stream. The water output stream strikes the diffuser plate and locates it at an equilibrium location whereat the force of the water output stream on the diffuser plate periphery equals the weight of the diffuser plate. If the propeller cavitates, the reduced water output stream causes the diffuser plate to fall toward the propeller and redirect the water output stream to the propeller. The redirected water output stream reloads the propeller and enables the aeration device to resume full output without outside intervention after the cause of the cavitation has been eliminated. The aeration device further comprises a weed guard that prevents motor shaft entanglement with weeds or the like, and a cross hatch that directs the water output stream into a high vertical column. The invention includes a method of aerating water.

REFERENCES:
patent: 1854613 (1932-04-01), Ishikawa
patent: 2166758 (1939-07-01), Franck
patent: 2607624 (1952-08-01), Lippert
patent: 3101173 (1963-08-01), Jennings
patent: 3497185 (1970-02-01), Dively
patent: 3521864 (1970-07-01), Welles, Jr.
patent: 3622074 (1971-11-01), Frohwerk
patent: 3645449 (1972-02-01), Hruby, Jr.
patent: 3814318 (1974-06-01), Michaelis
patent: 4350648 (1982-09-01), Watkins, III et al.
patent: 4734235 (1988-03-01), Holyoak

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