Stirring and aerating device for activated sludges

Details Stirring and aerating device for activated sludges Stirring and aerating device for activated sludges

2007-01-16

2007-01-16

Bushey, Scott (Department: 1724)

Gas and liquid contact apparatus

Contact devices

Rotating

C261S093000

Reexamination Certificate

active

10513947

ABSTRACT:
A stirring and aerating device for activated sludges, wherein a towerlike frame is formed by a carrier element (2, 3) receiving a drive device (1) and at least three support elements (4) extending from said carrier element, wherein an air inlet is provided for an aerating device (7) located in a plane beneath a stirring element (9) that is connected to the drive device (1) by the shaft (10). In order to increase service life of the device, the air is let in through a passage resembling a line that extends in a longitudinal direction in at least one of the support elements (4).

REFERENCES:
patent: 1704013 (1929-03-01), Minogue
patent: 2865618 (1958-12-01), Abell
patent: 3385576 (1968-05-01), Wikswo
patent: 3498459 (1970-03-01), Bohnke
patent: 3796417 (1974-03-01), Kaelin
patent: 4086306 (1978-04-01), Yoshinaga
patent: 4210534 (1980-07-01), Molvar
patent: 5925293 (1999-07-01), Howk
patent: 198 26 098 (1999-12-01), None
patent: 0 562 314 (1996-08-01), None

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