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(11) | EP 0 033 377 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Self-pressurizing dispensing container |
| (57) A flexible enclosed plastic bag disposable in a product container for supplying dispensing
pressure therein. The bag contains an envelope having its outer sides permanently
attached to the respective inside walls of the bag. One of the sides of the envelope
has one of a two component gas generating system disposed in a plurality of aligned
pocket members formed therein with their openings facing the other side of the envelope,
the latter being releasably adhered to the first mentioned side to enclose said one
component in said pockets. The bag contains the second component and a starting means
to initially generate gas and expand the bag and develop product dispensing pressure
within the container. As ' the product is dispensed, expansion of the bag causes sequential
separation of the sides of the envelope and serial opening of the pockets to add aliquots
of the first component to the second component and further generate gas and maintain
said pressure in the container until substantially all of the product is dispensed
from the container. |