초록 ▼

A flexible closed plastic pouch disposable within a product container for supplying dispensing pressure therein. A plurality of pocket members disposed at spaced positions within said pouch with their openings facing the interior of the pouch. Each pocket member having an extension of a predetermine

A flexible closed plastic pouch disposable within a product container for supplying dispensing pressure therein. A plurality of pocket members disposed at spaced positions within said pouch with their openings facing the interior of the pouch. Each pocket member having an extension of a predetermined length attached at its end to the interior of first of two facing wall members of the pouch. Each pocket member enclosing a predetermined quantity of first component of a two-component gas generation system and being releasably closed by one of a plurality of closure members, each of said closure members having an extension of a predetermined length attached at its end to the interior of the second of the two facing walls of the pouch. The pouch contains a second component of said two-component gas generation system and a starting device encapsulated within a delay device to intially generate a predetermined quantity of pressurizing gas after a delay of predetermined period of time. The pressurizing gas inflates and expands the pouch within the container under pressure. Due to the dispensing of the product, the pouch expands further and causes sequential separation of the pocket members from their closure members and serial opening of each pocket member to add predetermined quantities of aliquot of the first component to the second component and further generate additional quantities of pressurizing gas. The internal pressure within the container is maintained substantially within a range of predetermined maximum and minimum pressure levels until dispensing the product from the container is completed.

대표청구항 ▼

In an aerosol type dispenser, internal expulsion means for developing and maintaining gaseous dispensing pressure between predetermined maximum and minimum pressure levels for a product within a container of the dispenser, said expulsion means comprising an enclosed fluid impermeable flexible pouch

In an aerosol type dispenser, internal expulsion means for developing and maintaining gaseous dispensing pressure between predetermined maximum and minimum pressure levels for a product within a container of the dispenser, said expulsion means comprising an enclosed fluid impermeable flexible pouch disposed within said dispenser and having a pair of facing wall members, a plurality of pocket members disposed within said pouch in spaced relation to one another and affixed to the interior of a first of said wall members, closure members associated with the interior of the other said wall member closing each of said pocket members and releasably adhering to its contacting surfaces, a predetermined quantity of a first component of a two-component gas generation system disposed within each pocket member, a predetermined quantity of a second component of said two-component gas generation system disposed within said pouch and externally of said closed pocket members, starting delay means carrying a predetermined quantity of said first component disposed within said pouch in contact with said predetermined quantity of said second component for causing the initial generation of gas after a prescribed period of time, said pocket members being sequentially separable from said closure members to empty their contents into admixture with said second component to generate more gas as said pouch expands due to the dispensing of said product, each pocket member having a first extension member of a predetermined length affixed at its end to one member spot of an identifiable pair of spots comprising one identifiable spot on each of said pair of facing walls of said pouch, and each pocket member being releasably closed by a respective said closure member having a second extension member of a predetermined length affixed at its end to the other spot of said identifiable pair of spots, whereby, dispensing of said product causes the internal pressure within said container to alternate continuously between said predetermined minimum and maximum pressure levels, until dispensing said product is complete, said pouch increases in size to a predetermined capacity each time the internal pressure within said dispenser drops from said predetermined maximum to said predetermined minimum pressure levels, as the product is dispensed, the distance between said ends of said first and second extension members of said pocket and said closure members of each of said closed pocket members exceeds the total predetermined length of said pocket extension member plus the predetermined length of said closure extension member which causes sequential separation of said pocket members from their respective closure members and serial opening of each of said closed pocket members and discharging and adding of their contents sequentially each time the internal pressure in said dispenser drops to said predetermined minimum pressure level, whereby, coordination of said range of predetermined maximum and minimum pressure levels, the lengths of the extension members of each of said pocket and closure members of each of said plurality of closed pocket members, the quantity of said first component enclosed within each of said pocket members, the order of sequence of the opening of each of said closed pocket members, and the quantity of said second component deposited within said pouch permit dispensing of said product within said predetermined maximum and minimum pressure levels.