A cap for packing containers, including an integral powder or liquid, adapted for sterilisation

Abstract

The present invention relates to a cap adapted to be sealingly attached to a container having an opening and a neck, the container holding a liquid food. The cap includes a spout sealed at one end by a lid and at the other end by another foil or rupturing material and includes a component to be added to the liquid food at the time of consumption. The cap further includes a skirt to engage the inside of the neck to seal the container as well as an outside wall that engages to neck of the container in a screw type arrangement.

1 . A moulded cap adapted to be sealingly attached to a container of the type having a neck with outer threads and adapted to hold a liquid food;
 the cap including an outer circular wall with internal threads that engage the outer threads of the neck;   the cap extending initially over the neck and including a skirt adapted to sealingly engage the inside of the container outer circular wall;   the cap then configured mainly within the neck to define a chamber that is spaced apart from the skirt and including an internal needle adapted to pierce a film extending across the bottom of the chamber to seal a component therein;   wherein the space between the chamber and the skirt is large enough to enable for effective sterilisation thereof of the cap.   
     
     
         2 . The moulded cap as in  claim 1  further including a pealable lid to enable access to the top of the chamber. 
     
     
         3 . The moulded cap as in  claim 1  wherein the chamber is made of a flexible material to allow for it to be pressed to force the needle through the film so as to pierce it allowing the component to fall into the container. 
     
     
         4 . The moulded cap as in  claim 1  including a tamper proof ring below the cap to ensure that the cap can only be removed after the removal of the tamper proof ring.