Expandible package for dispensing containers

Details Expandible package for dispensing containers Expandible package for dispensing containers

B - Operations, Transporting

65

D

222/44.5

B65D 5/42 (2006.01)

Patent

CA 1179993

IMPROVED EXPANDIBLE PACKAGE FOR DISPENSING CONTAINERS ABSTRACT A sealed package for pressurizing the contents of dispensing containers. The package con- tains chemicals which react to develop gas pressure to expand the package when in the dispensing container. A series of sequentially rupturable pockets add further increments of internal pressure as dispensing proceeds. These pockets, and additional pockets containing chemi- cals for initiating package pressurization, are formed in an outer film heat-sealed to a second outer film to define the package. The rupturable pockets are covered with a tape to maintain the chemicals isolated until rupture is effected by progressive lift-off of the tape as the package expands.

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