Pressure venting closure cap for a container spout

Details Pressure venting closure cap for a container spout Pressure venting closure cap for a container spout

1986-04-28

1987-05-12

Hall, George T.

Receptacles

Closures

With condition responsive vent or valve

220270, 220306, 215207, 222541, 222525, B65D 5116

Patent

active

046642889

ABSTRACT:
A manually openable closure system for a container spout. The closure is provided with a pull tab extending below the closure and adjacent the spout surface. The closure is removable from the spout without the use of any auxiliary cutting or other tools. The closure is resilient and is provided with a top portion for sealing the spout orifice and for venting the interior of the container by being deformed by an excessive internal pressure to uncover the orifice thereby venting the interior of the container via the space between the cap and the spout.

REFERENCES:
patent: 2884151 (1959-04-01), Biederman
patent: 3179276 (1965-04-01), Safianoff

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