Closing system for bottles and small bottles and method for the use thereof for the opening of said bottles

A closing system for large and small bottles comprising a single piece that acts as a cap or closing, integrated by three parts:

• a cover, a screw and an elastic part, the cover and the screw are made of a rigid material and the elastic part is overpressed on the cover and the screw;
• the piece is manufactured using a food grade material:
• the cover covers an opening of the bottle, the cover has a narrowing of material at one of the diameters defining covering half fins, the covering half fins starting at a top of the cover and stem out from a neck that enters an opening of the bottle, inside the neck is an inner threaded hole and outside the neck is a lip that acts as a circular groove, the neck ends with an inverted tapered shape, an interior of the inner threaded hole is joined to the screw in an inverted position by a fine strip of material, to form a joint, the joint between the inner threaded hole and the screw will break when the screw is fastened inside the inner threaded hole of the neck:
• a drive shape on a head of the screw allows using a tool to fasten the screw to the inner threaded hole the head of the screw has a clamping line on the elastic part,
• the elastic part is overpressed on the cover and the screw from the lip to the clamping line, the elastic part has perimeter grooves so when the threaded part of the screw is inserted into the inner threaded hole in the neck, the elastic part is compressed and the screw attaches to the lip of the neck by the fastening ring which opens the perimeter grooves of the elastic part with a suction effect and the piece is attached to the walls of the neck of the bottle.