CAP WITH OPENING INDICATION AND NECK Russian patent published in 2016 - IPC B65D51/22 B65D41/34 

FIELD: machine building.

SUBSTANCE: invention relates to the cap with opening indication, and neck for interaction with said cap, to the bottle made with such neck, to the method of cap installation on the neck, and to the method of packing of liquid food product in bottle. The cap is made for interaction with the neck, and contains top part, side wall part, secured to the top part, and element of opening indication, secured to the side wall parting the broken connection zone. The broken connection zone can be made with weakened line, made for break during the said cap unscrewing such, that said element of opening indication is separated from the said side wall part. The cap additionally has at least one resilient cutting element, located on the said side wall. At least one resilient cutting tool is made to cut the neck membrane during the said cap unscrewing. The cap is made such that said weakened line is made to break prior to the moment when the said neck membrane will be cut off during the said cap unscrewing from the neck.

EFFECT: assurance of more reliable opening indication, and indication of the product safety for use.

16 cl, 6 dwg