Container for separately storing substance for adding to mixture - has removable wall defining storage space and contained in cavity of first container

摘要

The first hollow cap (2) is attached to the container mouth (5) so that its edge lies against that of the mouth and its hollow cavity faces the inside of the container and holds the displaceable piston (3) completely in same. The space defined by the two elements (2,3) is not accessible when the device is attached to the container mouth. The chamber holding the substance to be mixed in has a removable wall (13) which belongs the second piston (3). Between the first and second elements there are holders (12, 15-17) for holding the wall (13) in the removed position.