Patent ID: 7802703
Filing Date: 2010-09-28
Classification: B65D

Abstract:
1. A container system, comprising: an outer container of substantially fixed shape formed with a mouth defining an opening into the outer container, the outer container also being perforated therethrough with a perforation that does not comprise a valve; an inner container positioned within the outer container, the inner container formed with a mouth defining an opening into the inner container, the mouth of the inner container being positioned in and sealed to or adjacent to the mouth of the outer container, at least a portion of the inner container being collapsible so that the inner container can be filled with a liquid, the inner container being spaced apart from the outer container at the location of the perforation; a turret fitted directly or indirectly by way of the outer container to the mouth of the inner container, the turret comprising a one way valve in liquid communication with the mouth of the inner container by way of a passageway in the turret, the one way valve comprising a freely movable sealing element, the turret defining a mouth in liquid communication with the one way valve by way of a passageway in the turret so that if the inner container contains the liquid and the collapsible portion of the inner container is held above the turret, air can flow through the perforation in the outer container into the space between the outer container and the inner container and the liquid in the inner container will flow through the one way valve by the movement of the sealing element of the one way valve into a non-sealed position, the liquid then flowing out of the mouth of the turret as the inner container collapses within the outer container, and so that if the turret is held above the inner container, flow of air back into the inner container is substantially prevented by the closure of the one way valve by the movement of the sealing element of the one way valve into a sealed position, wherein the mouth of the inner container is of fixed shape having external threads and wherein the mouth of the outer container has internal threads dimensioned to engage the external threads of the mouth of the inner container.