Bearing protection device for liquid aerators

Details Bearing protection device for liquid aerators Bearing protection device for liquid aerators

1991-08-26

1992-11-03

Miles, Tim

Gas and liquid contact apparatus

Contact devices

Rotating

261 93, B01F 304

Patent

active

051606674

ABSTRACT:
An apparatus for the treatment of liquid by aeration is provided. The apparatus has a motor, a propeller carried by a motor-driven shaft, an airflow passage to the propeller, and bearings supporting the shaft at at least one location spaced from the motor. In accordance with the present invention, an air pocket is established about at least one of the bearings for keeping liquid from the bearings as by a conical member extending over the shaft from the bearing.

REFERENCES:
patent: 3606273 (1971-09-01), Johnson
patent: 3971104 (1974-02-01), Clitheroe
patent: 4086306 (1978-04-01), Yoshinaga
patent: 4437765 (1984-03-01), Seeger
patent: 4741870 (1988-03-01), Gross
patent: 4844843 (1989-07-01), Rajendren

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