FIELD: packaging industry.
SUBSTANCE: bottle closing device (10) comprises nozzle (16) on the bottle and cover plug (12, 14) configured to rotatably couple with the nozzle on the bottle. Means of indicating unauthorized opening are integral with the mirror group so as to make its initial opening visible. They contain several resilient side tabs (26) elongated along the lower surface of the plug and annular projection (28) on the outer side surface of the nozzle on the bottle. Projection (28) has a curved lower profile facing the lower portion of the nozzle on the bottle, and a flat upper profile facing the upper portion of the nozzle on the bottle. During first opening of closing device said tabs (26) can pass projection, while in subsequent closing said tabs (26) stop at annular projection due to flat upper profile of annular projection, limiting movement of repeated screwing of plug on nozzle on bottle.
EFFECT: disclosed is a closing device for bottles with an invisible means of indicating unauthorized opening.
8 cl, 10 dwg
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