Closure device, neck compatible with said device and container comprising such a neck closed by said device

摘要

The invention concerns a device comprising a closure cap (11), including a base (12) and a skirt (13) with an internal thread (14) adapted to co-operate with an external thread (4) of the neck (2) to be closed, and a tamperproof ring (16), linked by frangible means (17) to the skirt (13) and provided with notches (19) designed to co-operate with complementary notches (6) provided on the neck (2). The notches (19) of the ring (16) are oriented towards the base (12) of said closure cap (11), while the notches (6) of the neck (2) are oriented opposite to its outlet (2a).