FIELD: mechanical engineering; packing.
SUBSTANCE: invention relates to devices indicating unauthorized opening of container owing to provision of cap 31 with low-strength sections. Cap 31 has holding shutter 33, and neck of container has lock of shutter 33 provided with first projection and second projection 16. Cap 31 has brake 36 which provides final position of cap 31 being turned on. In turned-on final position of cap, holding shutter 33 is moved outside by means of first projection, and when cap 31 is being turned off, tear off strip 34 thrust against second projection 16. So, at turning off from final position of cap 31 shutter 33 separates either completely or partially, thus breaking tear off strip 34 and film joint 35 by means of which shutter 33 is fastened to cap 31.
EFFECT: prevention of possibility of even slight movements of cap in both directions without violation of protection against unauthorized opening, provision of visual indication of unauthorized opening.
20 cl, 6 dwg
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