Container having a pressure-rupturable seal for dispensing conte

Details Container having a pressure-rupturable seal for dispensing conte Container having a pressure-rupturable seal for dispensing conte

1987-02-13

1988-07-26

Huppert, Michael S.

Dispensing

Collapsible wall-type container

222541, 222564, 206634, B65D 3500

Patent

active

047594721

ABSTRACT:
A sealed container of the type which is ruptured by the application of external pressure to dispense a substance package therein. The container comprises walls of flexible sheet material having mating peripheral edges formed with a marginal area seal to define a fluid type internal packaging compartment. The marginal area seal includes relatively strong permanently sealed areas which define an unsealed discharge spout, and an arcuate shaped relatively weakly sealed area surrounding the discharge spout for defining an unsealed chamber communicating with the discharge spout, whereby upon application of predetermined external pressure to the container, the weakly sealed area will rupture to permit the controlled discharge of the package substance through the unsealed chamber and discharge spout. A relatively strong permanently sealed diverter area is formed within the unsealed chamber defined by the arcuate seal and discharge spout for retaining the walls of the container together at such diverter area upon rupturing of the arcuate weakly sealed area and for metering the discharge of the package contents.

REFERENCES:
patent: 3913789 (1975-10-01), Miller
patent: 3964604 (1976-06-01), Prenntzell
patent: 4163510 (1979-08-01), Strenger
patent: 4322019 (1982-03-01), Smith
patent: 4553971 (1985-11-01), Ashley et al.

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