Patent ID: 7530475

Claim:
A collapsible container having an outlet opening and two collapsible tubular compartments, each compartment extending beside the other compartment from a respective open end of each compartment opening into the outlet opening away from the outlet opening to a respective closed end of each compartment, each compartment having a outboard side and an opposed inboard side with the inboard side of one compartment facing the inboard side of the other compartment, each compartment being collapsible from an inflated condition in which the container is filled with fluid toward a collapsed condition by the withdrawn of fluid from the outlet opening, wherein in the inflated condition, the inboard side and outboard side of each compartment are spaced, and wherein in collapsing from the inflated condition toward the collapsed condition the outboard side and inboard side of each compartment move relatively towards each other, a shunt opening through the inboard sides of the compartments placing the two compartments in communication through their inboard sides, the shunt comprises a plurality of shunt passageways bridging between the inboard sides of the compartments placing the two compartments in communication through their inboard sides at a plurality of locations from the open end to their closed end.