B65D 51/2842

Closures not otherwise provided for combined {or co-operating} with auxiliary devices for non-closing purposes with auxiliary containers for additional articles or materials {the closure presenting means for placing the additional articles or materials in contact with the main contents by acting on a part of the closure without removing the closure, e.g. by pushing down, pulling up, rotating or turning a part of the closure, or upon initial opening of the container the additional article or materials being released by piercing, cutting or tearing an element enclosing it said element being provided with a preformed weakened line }