UNIT OF CLOSURE OF CONTAINER WITH AIR-TIGHT SEAL Russian patent published in 2014 - IPC B65D41/34 

FIELD: packaging industry.

SUBSTANCE: present invention provides a container closure unit, comprising a neck (10) of the container, having side walls forming an opening at its one end and an edge (4) extending around the opening, a lid (12) for the said neck, at that the lid comprises a base (22) and a threaded skirt (24), a first screw thread (16) on the neck, a second screw thread (26) on the inner surface of the threaded skirt of the lid, at that the said first and second screw threads are made with the ability to provide fastening, removing and re-fastening by the user of the lid in the sealing position on the neck by rotation of the lid relative to the neck, the sealing plug (52) extending from the said base of the inner part of the lid and substantially concentric with the said threaded skirt of the lid, at that the sealing plug is olive-like sealing plug to form the sealing with the inner surface of the container neck when fixing the lid on the container neck, and a sealing skirt (54) extending from the said base of the lid between the said sealing plug and the said threaded skirt of the lid and substantially concentric with the said sealing plug and the said threaded skirt of the lid, at that the said lid can be displaced towards the said neck from the said sealing position by application of axial force without rotating the lid on the neck and substantially without plastic deformation of the lid.

EFFECT: improved design.

18 cl, 3 dwg