Interface control apparatus

Details Interface control apparatus Interface control apparatus

1987-01-27

1988-12-27

Fisher, Richard V.

Gas and liquid contact apparatus

Fluid distribution

Valved

2611211, 137386, 137253, 210 97, 210137, 141198, B01D 2134

Patent

active

047939524

ABSTRACT:
A dip tube, being a branch line from a gas pressure line, extends into a liquid in a vented bubble pot. The bubble pot comprises a precision bore vessel containing a displaceable body with an actuator, preferably a stepping motor, for moving the body arranged outside the pot. Displacement of the body changes the liquid level in the vessel to thereby regulate the pressure in the gas pressure line.

REFERENCES:
patent: 425667 (1890-04-01), Fenby
patent: 2616440 (1952-11-01), Mason
patent: 3104678 (1963-09-01), Cole
patent: 3200971 (1965-08-01), Trethewey
patent: 3470902 (1969-10-01), Hackman
patent: 3601146 (1969-05-01), Reighard et al.
patent: 4660586 (1987-04-01), Knapp et al.

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