Patent ID: 8376183

Claim:
A method of expunging a flowable material from a container, said method comprising: providing a container for storing the flowable material, said container including first and second sheet portions sealed together along a perimeter of said container to define first and second chambers for containing the flowable material, the flowable material comprising substantially the same material composition in each of said first and second chambers, said sheet portions being sealed together at a dispensing portion to define a dispensing passageway at said first chamber, said first and second chambers being separated by at least one divider, said divider configured to at least initially limit flow of the flowable material between said first and second chambers; providing a header portion along said perimeter at said dispensing portion of said container, wherein said dispensing passageway is disposed at said first chamber and at least partially in said header portion; opening said dispensing passageway for dispensing the flowable material from said first chamber while said divider remains unopened, wherein opening said dispensing passageway comprises at least partially removing said header portion; after said opening of said dispensing passageway, applying pressure to said first chamber to dispense the flowable material from said first chamber onto a surface while said divider remains unopened; after said applying pressure to said first chamber, applying pressure to said second chamber to open said divider and to urge the flowable material from said second chamber through a portion of said divider and into said first chamber; and after said applying pressure to said second chamber, applying pressure to said first chamber to dispense the flowable material from said second chamber through said dispensing passageway and onto the surface.