Container for two substances mixed before use - has one substance in plastic envelope and forced into second substance by pressing on cap

摘要

The main container (1) holds a liquid n2) and the other substance (8) is in the form of a compressed piece inside a plastic envelope (5). This envelope is in the form of a recessed disc (6) and a cover (7), the edges of these parts being gripped between the neck of the container (3) and a lip (11) inside the screwlon cap. The plastic envelope thus seals the container. The cap has a central portion (12) which cna be depressed to force the compressed pellet through the plastic envelope and into the liquid.