Abstract: A bottle with a dispensing device includes a cap having a female screw; a tubular element, coaxial with the female screw, having a lower end, which is closed by a bottom wall and projects inside the neck of the bottle; and a collar joined to the top of the tubular element through a tear-away. A hollow piston having an open lower end is inserted in the tubular element and is suitable for breaking through the bottom wall of the cap after the collar together with the tear-away ring has been removed. The hollow piston and bottom wall of the tubular element define a chamber containing a product. The lower end of the hollow piston has an inclined profile. Means are provided to stop the stroke of the hollow piston before the bottom wall completely detaches and prevent the hollow piston from rotating at the end of its stroke.

Abstract: A bottle with a dispensing device includes a cap having a female screw; a tubular element, coaxial with the female screw, having a lower end, which is closed by a bottom wall and projects inside the neck of the bottle; and a collar joined to the top of the tubular element through a tear-away. A hollow piston having an open lower end is inserted in the tubular element and is suitable for breaking through the bottom wall of the cap after the collar together with the tear-away ring has been removed. The hollow piston and bottom wall of the tubular element define a chamber containing a product. The lower end of the hollow piston has an inclined profile. Means are provided to stop the stroke of the hollow piston before the bottom wall completely detaches and prevent the hollow piston from rotating at the end of its stroke.