Liquid purification or separation – Flow – fluid pressure or material level – responsive – Discharge of treated material
Patent
1982-07-29
1985-07-09
Fisher, Richard V.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Discharge of treated material
210119, 210123, 210533, B01D 2124
Patent
active
045280940
ABSTRACT:
A device for separating two liquids one of which is heavier than the other. The device comprises a main chamber (120) in which there is a float (128). The float is such that it sinks in the lighter of the liquids and floats in the heavier. A control chamber (140) having a fixed wall part (142) and a movable wall part (144) is provided. The movable wall part is subjected to the pressure existing in the main chamber which urges the movable wall part in the direction which reduces the volume of the control chamber. A restricted inlet (146) places the control chamber and main chamber in communication. There is an outlet (158) from the control chamber which is normally closed by a valve (168). The valve is opened, mechanically or electrically, when the float rises upon heavier liquid accumulating in the main chamber. A valve seat (160) surrounds an outlet (156) from the main chamber. Said movable wall part engages said seat to close the main outlet until movement of the movable wall part occurs upon said valve (168) being opened. The valve operating member (170) and the float are each provided with engagement surfaces (172, 174, 176, 178). Upon the float rising due to the accumulation of the heavier liquid in the chamber, the surface on the rotating float engages the surface on the valve operating member so that a chattering action is exerted on the valve operating member.
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Fisher Richard V.
Millard Wanda L.
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