Collapsible bag with evacuation passageway and method for making the same
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United States of America Patent
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-
Sep 15, 1992
Grant Date -
N/A
app pub date -
Apr 9, 1991
filing date -
Apr 9, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A collapsible bag for use in containing and dispensing a liquid, such as in a bag-in-box arrangement, and a method for making the bag. Prior to sealing together two bag walls to form the bag, a one-piece spout and evacuation strip unit is attached to the outside surface of one bag wall and one or more openings are provided through the bag wall in liquid communication with a plurality of liquid channels in the strip. The two bag walls are then sealed together to form the bag and the evacuation strip provides liquid passageways for the liquid in the bag to flow to the spout to achieve complete withdrawal of the liquid from the bag as the bag collapses.
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