Manual relief gas vent

Details Manual relief gas vent Manual relief gas vent

1992-08-07

1993-10-05

Garbe, Stephen P.

Receptacles

Closures

Vent in closure

220231, 220DIG27, 137312, 137559, 251216, 251225, B65D 5116

Patent

active

052496961

ABSTRACT:
A drum lid for a ventable drum has a depression formed in the surface of the lid. A vent valve is placed in the depression and extends through the lid. The valve has a valve outlet which opens into the reservoir in the lid. During venting the reservoir is filled with water and the valve stem is slowly opened. The gas escapes into the water in the reservoir in the form of bubbles. When the bubbles stop the tank is vented and the lid can be removed.

REFERENCES:
patent: 1187769 (1916-06-01), Neal
patent: 1453299 (1923-05-01), Wetzel
patent: 3208624 (1965-09-01), Allen
patent: 4424915 (1984-01-01), Horn
patent: 4688591 (1987-08-01), Edson

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