Container having a pressure-rupturable seal for dispensing contents

A sealed container of the type which is ruptured to dispense a substance packaged therein comprising walls of flexible material having mating peripheral edges, means forming a seal along a marginal area of said edges to define a fluid-tight internal packaging compartment, said marginal area seal including relatively strong permanently sealed areas which define an unsealed discharge spout, a relatively weakly sealed area sealing the discharge spout from the internal packaging compartment, said weakly sealed area extending inwardly into said compartment from said marginal area seal, a relatively strong permanently sealed diverter area in said unsealed discharge spout, whereby on the application of predetermined external pressure to the container said weakly sealed area ruptures to permit the controlled discharge of the packaged substance through said discharge spout with said permanently sealed diverter area retaining the walls of the container in joined relationship at the location of said diverter area for metering the discharge through the spout.

A sealed container of the type which is ruptured to dispense a substance packaged therein comprising walls of flexible material having mating peripheral edges, means forming a seal along a marginal area of said edges to define a fluid-tight internal packaging compartment, said marginal area seal defining an unsealed discharge spout, an arcuate shaped sealed area surrounding said discharge spout for closing said internal compartment from said discharge spout and for defining an unsealed chamber communicating with said discharge spout, said arcuate shaped sealed area has a first curvalinear side that extends inwardly into said compartment from said marginal area seal and defines a portion of the lower perimeter of said compartment and a second curvalinear side that defines an upper perimeter of said unsealed chamber, whereby upon application of predetermined external pressure to the container said arcuate shaped sealed area will rupture to permit the controlled discharge of the packaged substance through said unsealed chamber and discharge spout, and a sealed diverter area within the unsealed chamber defined by said arcuate seal and discharge spout for retaining the walls of said container together at said diverter area upon rupturing of said weakly sealed area and for metering the discharge of the packaged substance through said unsealed chamber and discharge spout.