CLOSURE DEVICE FOR CONTAINERS

摘要

The invention relates to a container closure device of the type which can be mounted in the opening of the container and which seals the opening in a leak-tight manner. The inventive device comprises a first inflatable part (1), a second part (3) which can be fixed to the opening and separation means (7) which can prevent the liquid inside said container from passing into the first inflatable part (1). The separation means (7) can comprise a semi-permeable filter (8) that allows the passage of gases but prevents the passage of liquids or a leak-tight wall.