Piercing fitment assembly for flexible container

1. A piercing fitment assembly for a thin film flexible container containing a liquid comprising:

(A) a spout assembly having a longitudinal through internal passage and a sealing flange sealed to the thin film of the flexible container and having positioned therein a circular piercing element with a through internal passage and having a circular piercing end with at least one piercing point transversely positioned in the longitudinal through internal passage of the spout assembly in close proximity to the thin film of the flexible container;

(B) a threaded plug having a top and a bottom and having a longitudinal through internal passage and a threaded exterior being fitted into the longitudinal through internal passage of the spout assembly and the bottom of the plug being sealed to the thin film of the flexible container;

(C) a threaded collar having a longitudinal internal passage and threaded on the spout assembly and positioned in an interior of the longitudinal through internal passage of the spout assembly and threadably engaged with the threaded exterior of the threaded plug;

wherein said threaded plug being sealed to the thin film of the flexible container and positioned in the longitudinal through internal passage of the spout assembly and wherein the circular piercing element and the threaded exterior of the threaded plug being engaged with the interior of the threaded collar; and

whereby when engaging the threaded collar to move the threaded plug sealed to the thin film of the flexible container thereby forcing the threaded plug having the thin film sealed thereto to move away from the thin film of the flexible container thereby bringing the piercing end of the piercing element into engagement with the thin film and thereby piercing the thin film and allowing the liquid from the flexible container to flow out of the flexible container and through the longitudinal through interior passage of the spout assembly and out of the flexible container.

2. The fitment assembly of claim 1 wherein the piercing element comprises a circular blade having at least one sharp piercing point.

3. The fitment assembly of claim 1 wherein a separate piercing element is positioned in the spout assembly.

4. The fitment assembly of claim 3 wherein the separate piercing element comprises circular hollow body having piercing tooth with an interior surface and an exterior surface that is substantially parallel to a longitudinal axis of the circular hollow body; the interior surface is inclined inward at an angle of 1-90° with the exterior surface.

5. The fitment assembly of claim 3 wherein the separate piercing element comprises circular hollow body having piercing tooth; each tooth having an interior surface and an exterior surface that is substantially parallel to a longitudinal axis of the circular hollow body; the interior surface is inclined inward at an angle of 10-45° with the exterior surface.

6. The fitment assembly of claim 1 wherein the threaded collar further comprises a fluid transfer device.

7. A thin film flexible container comprising the fitment assembly of claim 1 attached thereto.

8. The thin film flexible container of claim 7 comprising an aseptically packaged flexible container.