Closure units for containers

Fluid handling – Diverse fluid containing pressure systems – Gas pressure storage over or displacement of liquid

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Details

217 99, 2224007, B67D 554, B65D 8300

Patent

active

039398609

ABSTRACT:
A double-valved closure for a container, particularly a beer container, comprises a cup assembly for insertion into the opening of the container and includes a tubular component of plastics material having legs between which a reaction ring can be sprung during assembly of the closure. A downtube is received in the ring and extends from the lower end of the cup assembly into the container and surrounds one of the valves and a spring biasing the valve closed. The valve is carried by the top of the downtube and the reaction ring provides an abutment for the spring for this other valve and which biases the valve closed. The legs are held together after insertion of the reaction ring by means of an outer ring engaging external grooves in the legs.

REFERENCES:
patent: 3036586 (1962-05-01), Reeve
patent: 3361152 (1968-01-01), Akers
patent: 3473556 (1969-10-01), Johnson et al.
patent: 3672390 (1972-06-01), Gravestein
patent: 3776260 (1973-12-01), Ruddick

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