Abstract: A pressurization pouch having a pressurization system therein activated by the application of a vacuum underpressure to the outside surfaces of the pouch is inserted into a dispensing container through an opening in a lid portion of the container. Upon the sealing of the container by the attachment of a valve member to the container lid at the opening thereof, a vacuum generator is coupled to the valve member to generate negative pressure inside the dispensing container, thereby causing the pouch to expand under the pressure of a predetermined amount of air disposed therein. Upon that initial expansion, the pressurization pouch is further inflated owing to the action of the pressurization system. Upon complete inflation of the pressurization pouch, the pouch forms a liner in the dispensing container. A flowable product is then injected into the dispensing container through the valve member.

Abstract: A balloon storage and inflation assembly comprises a circular inflatable balloon containing a pair of chemical reactants separated from one another, one of the reactants being held in a burstable container. The balloon is placed between two plates of a support structure, the burstable container and a portion of the balloon being disposed in a recess formed by two aligned openings in the plates. The support structure is further provided with a pair of doors hingedly secured to respective ones of the plates along edges of the openings. The doors are swung into the openings to compress the burstable container and to facilitate a rupture thereof upon the striking of one of the doors by a fist or other object.

Abstract: A dispensing system for use with a wide variety of dispensable products which employs an inflatable pouch positioned within the container containing a pressurizing gas phase. A product gas phase is incorporated in the expelled product to enhance the product appearance, functionally or safety. The weight to weight (w/w) ratio of the product gas phase to the flowable materials should be between about 0.001:1 to about 0.015:1 and preferably, the w/w ratio of the product gas phase to the flowable material is between about 0.001:1 and about 0.07:1.

Abstract: A fluid-impervious self-inflatable sealed pouch containing separately compartmented first and second gas generating components which, upon admixture in successive discrete quantities, generate gas, causing the pouch to expand gradually from an initial collapsed condition to an ultimately fully expanded condition. Within the pouch is a mechanically rupturable solvent-containing member optimally including a measured quantity of one of said components and the other said component is enclosed by a water-soluble film barrier of polyvinyl alcohol, methylcellulose or the like, additional inner receptacles within the pouch contain measured quantities of said one component for successive release into said admixture caused by expansion of said pouch.

Abstract: The refill pouch is constructed of a flexible pouch containing a product to be dispensed and an expandable bag containing gas generating components for expanding the bag. Upon placement in a container with a valve, the pouch can be opened and the gas generating components activated. After dispensing of a product, the container can be emptied and a fresh refill pouch placed within the container.

Abstract: The refill pouch is constructed of a flexible pouch containing a product to be dispensed and an expandable bag containing a gas generating system for expanding the bag. Upon placement in a container with a valve, the pouch can be opened and the gas generating system activated. After dispensing of a product, the container can be emptied and a fresh refill pouch placed within the container.

Abstract: A fluid-impervious self-inflatable sealed pouch containing separately compartmented first and second gas generating components which, upon admixture in successive discrete quantities, generate gas, causing the pouch to expand gradually from an initial collapsed condition to an ultimately fully expanded condition. Within the pouch is a mechanically rupturable solvent-containing member optimally including a measured quantity of one of said components and the other said component is enclosed by a water-soluble film barrier of polyvinyl alcohol, methylcellulose or the like, additional inner receptacles within the pouch contain measured quantities of said one component for successive release into said admixture caused by expansion of said pouch.

Abstract: A fluid impervious expandable enclosed bag containing separately compartmented first and second gas generating components which, upon admixture in successive amounts, generate gas causing the bag to expand gradually from a collapsed condition to an ultimately fully expanded condition. The internal compartmentation in the bag also contains a solvent medium and a time release capsule of one of the components, thereby providing apparatus that can be mass produced and used for insertion into aerosol-type liquid product dispensing containers to provide relatively constant expulsion pressure during use.

Abstract: 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 one component in the 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.