TANK PLUG Russian patent published in 2024 - IPC B65D39/16 B65D53/02 B65D55/02 

FIELD: packing and storage.

SUBSTANCE: invention relates to a container plug. Container plug has a cover with a circumferential wall enclosing the neck of the container, on the lower edge of which a tear-off safety ring passing in a circle is formed and is provided with an oval-convex seal extending from the outside in a circle for insertion into the opening of the container and jamming therein. Oval convex seal has on its inner side a corrugated wall surface formed by a plurality of axially passing grooves and partitions between them on the wall of the oval convex seal. Width of grooves changes in longitudinal direction, increasing in direction to edge of oval-convex seal.

EFFECT: possibility of removing or prying off the plug from the corresponding container with low forces is achieved, which would nevertheless ensure reliable tightness of the container contents.

6 cl, 2 dwg