Patent ID: 7299945

Claim:
A discharge container comprising: a squeezable container, which has an outer layer with an aperture and an inner layer that are laminated to each other in a peelable manner, a neck disposed in the upper portion of said container and connected to discharge ports through which the contents are discharged, and the aperture disposed in said outer layer at a position in the bottom plate of container bottom cylinder so as to introduce outside air into the interspace between said outer layer and the inner layer; a first check valve, which opens or closes said neck to prevent the contents from flowing back into said container and to inhibit the inflow of outside air; a base cup in a bottomed cylindrical shape, which has a cylindrical wall that comes in screw engagement with said container bottom cylinder and also has an air intake hole opened in cup bottom plate; and a second check valve on the base cup and fitted to said air intake hole to permit outside air to enter the interspace between layers, wherein airtight fitting of peripheral bottom wall to the cylindrical wall is accomplished by tight contact between a first seal disposed on said peripheral bottom wall of the bottom cylinder and a second seal disposed on the back of said cylindrical wall.