Package for liquids mixed before use has bottle containing one and screw cap containing other, foil in screw cap being pierced by pin on bottle stopper and line of weakness in stopper being ruptured when cap and bottle are screwed together

摘要

The package for two liquids (2, 3) which are mixed before use consists of a bottle (7) containing the first liquid and a screw cap (6) fitted on to it with a pot (10) inside containing the second liquid. The bottom of the pot is sealed by a sheet of foil (11) and the bottle is sealed by a cup-shaped stopper (13). A pin (22) at the center of this pierces the foil when the cap is screwed more tightly on to the bottle. The stopper has a sloping floor and has a line of weakness (18) in the deepest area (17) which is ruptured at the same time.