Special aerator

Details Special aerator Special aerator

1975-03-10

1976-08-03

Granger, Theodore A.

Gas and liquid contact apparatus

Contact devices

Rotating

210219, B01F 304

Patent

active

039729656

ABSTRACT:
An improved aeration apparatus for use in sewage treatment plants to dissolve oxygen into the sewage. The aeration apparatus is specifically designed for use in combination with a single home sewage treatment unit. The aeration apparatus includes a motor assembly for rotation of a propeller through a downwardly extending drive shaft. The propeller extends downwardly into a draft tube so as to pump the liquid to be aerated upward therethrough. A deflector plate directs the rising liquid radially outward in all directions. A slinger is positioned about the drive shaft immediately below the deflector plate. The motor is designed to pull only fresh air into the aerator housing. To avoid clogging the propeller is free to move in one direction or another when a large object comes through the draft tube.

REFERENCES:
patent: 2051727 (1936-08-01), Levine et al.
patent: 2137397 (1938-11-01), Haldeman
patent: 2183657 (1939-12-01), Page
patent: 3167600 (1965-01-01), Worman
patent: 3204768 (1965-09-01), Daniel
patent: 3210053 (1965-10-01), Boester
patent: 3360460 (1967-12-01), Weston
patent: 3543937 (1970-12-01), Choun
patent: 3576316 (1971-04-01), Kaelin
patent: 3662890 (1972-05-01), Grimshaw
patent: 3753897 (1973-08-01), Lin et al.

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