Automatic control for filtering equipment under pressure

Details Automatic control for filtering equipment under pressure Automatic control for filtering equipment under pressure

1974-06-13

1976-04-06

Adee, John

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Filter cleaning

210128, B01D 2938

Patent

active

039487733

ABSTRACT:
Filter backwash means for automatically backwashing a filter when increase of pressure indicates that the filter is starting to block, wherein a reversing valve is arranged to reverse water flow through the filter to wash out the blocking particles (mud and the like) to drain, the reversing mechanism comprising a pressure responsive means coupled to an actuating means in turn coupled to the reversing valve, and a float valve actuated latch to actuate the reversing mechanism.

REFERENCES:
patent: 1252099 (1918-01-01), Donovan
patent: 3432005 (1969-03-01), Gates
patent: 3616915 (1971-11-01), Whitlock

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