FIELD: physics.
SUBSTANCE: invention relates to a sealing device with means of indicating opening, installed on the neck of a bottle with a liquid. According to the present invention, the stem 12 of the opening indication means 11 has an additional opening 15, which is linked with the lower part of the support opening 13 of the stem 12 and forms a locking edge 16, wherein the axial holder 3 of the cap 1 is fitted in the support opening 13 with tension.
EFFECT: such a design of the sealing device enables to prevent unauthorised activation of the indication means and therefore improves reliability of the sealing device and the plugging unit of a bottle with a liquid.
20 cl, 26 dwg
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