Bar screen with screen cleaner for waste water treatment install

Details Bar screen with screen cleaner for waste water treatment install Bar screen with screen cleaner for waste water treatment install

1981-04-20

1983-07-12

Sadowski, David R.

Liquid purification or separation

Structural installation

Flume stream type

210162, 210170, 210357, 210413, C02C 122

Patent

active

043929524

ABSTRACT:
A bar screen with a screen cleaner has a vertically movable carriage with a rake pivotally connected thereto by pivot arms. A foldable lever assembly is pivotally connected to the carriage and to the pivot arms and assures a fully extended position and a folded position which correspond to a position of engagement of the rake with the screen and a position of disengagement of the rake with the screen, respectively. A lower stop engages the foldable lever assembly and moves it from a folded position to an intermediate folded position at the end of downward movement of the carriage and before the lever assembly reaches fully extended position so that the rake remains in a position of disengagement with the screen during downward movement of the carriage and is held in this position until the lever assembly is moved to fully extended position in response to upward movement of the carriage.

REFERENCES:
patent: 1823823 (1931-09-01), Dundas et al.
patent: 4107040 (1978-08-01), Rudolph et al.

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