Closing assembly for box containing drink, powder or grain comprises hole cut on cover of box and cover slip of the same form but bigger, which can rotate around an axis on the interior face of the wall

摘要

The aperture (2) is a hole cut on the cover or the lateral wall of the box. A cover slip (6) of the same form but bigger can rotate around an axis (3) on the interior face of the wall to close the aperture. The aperture is covered by a plastic or paper adhesive sheet (12) prior to the first use. The user removes the sheet then rotates the cover slip by pushing it with his nail. The cover is closed by rotation in reverse direction.