Liquid purification or separation – Flow – fluid pressure or material level – responsive – Float
Patent
1986-10-30
1988-10-04
Richman, Barry S.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Float
210172, 210536, 137147, B01D 17032
Patent
active
047754664
ABSTRACT:
A control for draining water accumulated in a fuel tank, without loss of fuel or ingestion of water into an associate fuel system, is responsive to a flotation device weighted to float at the water-fuel interface. The flotation device is connected by a lever to turn a rotor in a pressurized chamber thereby selectively connecting pressure or exhaust to respective actuation control ports for a drain valve and fuel valve.
REFERENCES:
patent: 1737171 (1929-11-01), Parsons
patent: 2701620 (1955-02-01), Crawford
patent: 2854994 (1958-10-01), Glasgow
patent: 4136711 (1979-01-01), Rubin et al.
Abad Santiago
Mallay John B.
Jordan Richard D.
Muesco, Inc.
Richman Barry S.
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