Importance

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Abstract

A closure for a container such as a container of draft beer includes two sealing plugs having bores for receiving the gas and beer tubes of a tapping unit. Initially, the bores of the plugs are sealed by rubber membranes which are adapted to be pierced by the tubes as an incident to tapping the container. The bores and the membranes are constructed so as (A) to effect piercing of the membranes with a controlled tear so as to avoid punched-out rubber slugs, (B) to eliminate the need of flappers for re-sealing the bores, and (C) to reseal the container at moderate pressures while enabling venting of the container at extremely low and high pressures.

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First Claim