Liquid seal for preventing pneumatic back flow

Details Liquid seal for preventing pneumatic back flow Liquid seal for preventing pneumatic back flow

1975-06-20

1976-06-08

Weakley, Harold W.

Fluid handling

Diverse fluid containing pressure systems

Gas pressure storage over or displacement of liquid

137253, 137344, 220 88B, 137565, F04F 100

Patent

active

039616410

ABSTRACT:
A liquid seal for use with low pressure gas lines. It has a U-shaped conduit and an associated reservoir with the sealing liquid therein connected to the bottom of the U. The reservoir has an overflow to maintain a desired level in the U-conduit under static conditions. The top of the reservoir is closed and is connected by a pneumatic line to a valve so that it may be connected alternatively to the down stream side of the gas seal or to the suction side of the pump which circulates the gas in the line.

REFERENCES:
patent: 1671492 (1928-05-01), Skinner
patent: 2365624 (1944-12-01), Cantello
patent: 2508762 (1950-05-01), Lapple
patent: 2721065 (1955-10-01), Ingram
patent: 3285711 (1966-11-01), Stanford

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