Collapsible bag with evacuation passageway and method for making

Details Collapsible bag with evacuation passageway and method for making Collapsible bag with evacuation passageway and method for making

1991-04-09

1992-09-15

Huppert, Michael S.

Dispensing

Collapsible wall-type container

222105, 383906, 493929, B65D 3500

Patent

active

051470713

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.

REFERENCES:
patent: 2891700 (1959-06-01), Maynard
patent: 3081911 (1963-03-01), Scholle
patent: 4524458 (1985-06-01), Pongrass et al.
patent: 4601410 (1986-07-01), Bond
patent: 4893731 (1990-01-01), Richter
patent: 4913316 (1990-04-01), Richter
patent: 4998990 (1991-03-01), Richter et al.

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