CLOSURE Russian patent published in 2010 - IPC B65D49/00 B65D41/34 

FIELD: packing industry.

SUBSTANCE: invention is related to facilities for sealing of bottles with indication of opening, mostly for bottles with elite alcohol drinks, comprising metal jacket, which consists of upper part - metal cap and lower part - metal cartridge. It also comprises plastic bushing with internal thread and with element of opening indication, internal polymer cover, which is installed between metal cap and plastic bush, splitter arranged with external thread, which interacts with thread of plastic bush. Internal conical ring of splitter interacts with sealing ring element of plastic bush. Element of opening indication is arranged along contour in lower part of plastic bush in the form of cone-shaped annular belt, which is inverted towards metal cartridge, being lower part of jacket, with its larger diametre. Element of opening indication is rolled under upper edge of metal cartridge, which is tightly fixed on splitter, and is arranged with the possibility of release from under upper edge of metal cartridge, which indicates the first opening of closure.

EFFECT: improved reliability of closure.

7 cl, 4 dwg