SEALING DEVICE WITH UNAUTHORIZED OPENING INDICATION Russian patent published in 2019 - IPC B65D41/34 

FIELD: machine building.

SUBSTANCE: body has a side wall comprising structures in the form of a screw thread for screwing of the closure onto the neck of the vessel with screw thread, and the mirror element is arranged on the neck for its sealing. Sealing device comprises an unauthorized opening indication element, at least a part of which is configured to move from the first position to the second position, when the closure is unscrewed from the neck for the first time, and when used, when the body is unscrewed, it moves in axial direction relative to the mirror element and causes movement of the indication element of unauthorized opening from the first to the second position.

EFFECT: disclosed is a closure comprising a housing and a separate mirror element.

16 cl, 21 dwg