Glass content e.g. drink, protecting device, has stopper covered by inflated film forming bubble when clamping of stopper increases pressure in cover and creating protection bubble to pierce top, borders and bottom of stopper

摘要

The device has a stopper (1) covered by inflated plastic film that is put under pressure. The film forms a bubble when a clamping (2) of the stopper increases the pressure in a cover and creates a protection bubble sensitive to pierce on top, borders and a bottom (3) of the stopper. The cover that protects the top is inflatable by the clamping of the stopper.