SEALING DEVICE Russian patent published in 2018 - IPC B65D41/32 B65D51/22 B65D5/74 

FIELD: package and storage.

SUBSTANCE: invention relates to packages, in particular to packaging elements of polymeric materials, intended for hermetic packaging used for liquid mainly food products. Closure device comprises a body consisting of a cylindrical part with a thread on the outer surface and a flange portion provided around the perimeter with a stiffening rib, cover with a tear-off ring and fixing elements, on the outer surface of which a lateral relief is made, and a cutting element. Inner end surface of the lid is provided with a sealing flap and lobes. Cutting element is made in the form of a hollow cylinder, the wall of which is formed with recesses of a straight and / or shaped profile, forming through the housing wall through-holes communicating with the cavity of the package. Outer surface of the cutting element between the recesses is threaded, and its lower part is formed with at least one protrusion being a knife.

EFFECT: purpose of the invention is to simplify the design of the closure device while simultaneously ensuring that the liquid contents are completely drained from the package.

5 cl, 9 dwg