Bottle cap for closing bottle has accumulation of material in region of tip brought out in hollow form above projection

摘要

The bottle cap has a cylindrical threaded sector (1) for screwing onto a bottle; a cover sector (2) over the threaded sector, and a projection (3) from the cover sector through the threaded sector, on which there is a projecting tip (7). The cap has an accumulation of material (8) in the region of the tip, brought out in hollow form above the projection.