Device to facilitate removal of screenings from a bar screen

Details Device to facilitate removal of screenings from a bar screen Device to facilitate removal of screenings from a bar screen

1998-11-25

2000-05-16

Popovics, Robert J.

Liquid purification or separation

Processes

Including controlling process in response to a sensed condition

210791, 210159, 210162, B01D 2964

Patent

active

060632933

ABSTRACT:
A device for cleaning a bar rack of the type used as a screen to remove solid objects from the inlet of a water or waste treatment plant. Such devices typically have rake and a motor to drive the rake up and down the screen; the motor being connected to the rake via a rake arm. The disclosed rake arm has a variable length in response to contact between the rake arm or the rake with an object fixed to the screen or resting on the channel floor. This variable length allows the motor to drive the rake without interruption to its normal operation. Such device has particular utility in a front cleaned rack.

REFERENCES:
patent: 4277335 (1981-07-01), Hori
patent: 5074996 (1991-12-01), Galanty et al.
patent: 5571406 (1996-11-01), Mensching

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