Dispensing device using multiple gas cartridges

Details Dispensing device using multiple gas cartridges Dispensing device using multiple gas cartridges

2007-10-02

2007-10-02

Ngo, Lien M. (Department: 3754)

Dispensing

With discharge assistant

Container with follower

C222S327000

Reexamination Certificate

active

10828105

ABSTRACT:
A manifold includes a plurality of inlet passages provided in fluid communication between an inlet and an outlet passage. A housing retains a pressurized gas cartridge in sealed fluid communication with each of the inlet passages. A check valve is located in at least one of the inlet passages. The check valve is biased to a closed position that prevents gas from flowing through the check valve to the inlet of the inlet passage. Thus, gas cannot exit through the inlet when a pressurized gas cartridge is not sealed thereto. The housing retains a viscous product cartridge and forms a gas enclosure separated from a product enclosure by a movable wall. The gas from the pressurized gas cartridges passes into the gas enclosure and generates a force on the movable wall to dispense product from the product cartridge.

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