Patent ID: 9555934
Date: 2017-01-31
CPC Classifications: B65D

Claim:
1. A screwed cover apparatus that provides foil-cutting and folding of the foil to an inner part of an aseptic liquid cardboard package, the screwed cover apparatus comprising: a lower cover; an upper cover; a spiral-shaped friction ramp located on an inner part of said upper cover; a cylindrical ridge in an inner portion of said lower cover, said cylindrical ridge being exposed to pressure from said spiral-shaped friction ramp applied after rotating in a cover-opening direction; a right flat plate and a left flat plate on which said cylindrical ridge positioned in an inner part of said lower cover is located; an axial hinge connecting said right flat plate and said left flat plate to a cylindrical inner wall of said lower cover; and a tension spring connected to said cylindrical inner wall of said lower cover with said right flat plate and said left flat plate in an asymmetrical parallel angle so as to connect the right flat plate and the left flat plate to said cylindrical inner wall by said axial hinge to provide 180° rotation of the right flat plate and the left flat plate into the cardboard package.