Dispensing device using multiple gas cartridges
First Claim
1. A dispensing device for dispensing a viscous product that is adapted to be driven by a plurality of pressurized gas cartridges, the dispensing device comprising:
- a manifold having a plurality of inlet passages, each of the plurality of inlet passages providing fluid communication between an inlet and an outlet passage;
a housing adapted to retain a pressurized gas cartridge in sealed fluid communication with each of the plurality of inlet passages; and
a check valve in at least one of the plurality of inlet passages, the check valve being biased to a closed position that prevents gas from flowing through the check valve to the inlet of the at least one of the plurality of inlet passages;
wherein the dispensing device is adapted to use gas delivered through the outlet passage from the plurality of pressurized gas cartridges to dispense the viscous product from the dispensing device.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
20 Claims
-
1. A dispensing device for dispensing a viscous product that is adapted to be driven by a plurality of pressurized gas cartridges, the dispensing device comprising:
-
a manifold having a plurality of inlet passages, each of the plurality of inlet passages providing fluid communication between an inlet and an outlet passage;
a housing adapted to retain a pressurized gas cartridge in sealed fluid communication with each of the plurality of inlet passages; and
a check valve in at least one of the plurality of inlet passages, the check valve being biased to a closed position that prevents gas from flowing through the check valve to the inlet of the at least one of the plurality of inlet passages;
wherein the dispensing device is adapted to use gas delivered through the outlet passage from the plurality of pressurized gas cartridges to dispense the viscous product from the dispensing device. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A dispensing device adapted to dispense a viscous product from a viscous product cartridge, the dispensing device also being adapted to be driven by a plurality of pressurized gas cartridges, the dispensing device comprising;
-
a product cartridge housing component adapted to retain the viscous product cartridge and to cooperate with the viscous product cartridge to form a gas enclosure separated from a product enclosure by a movable wall;
a fluid passage having a plurality of inlets, the fluid passage providing fluid communication between the plurality of inlets and the gas enclosure;
a gas cartridge housing component adapted to retain each of the plurality of pressurized gas cartridges in sealed fluid communication with one of the plurality of inlets; and
a check valve in the passage associated with at least one of the plurality of inlets, the check valve being biased to a closed position that prevents gas from flowing through the check valve to the at least one of the plurality of inlets. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A dispensing device for dispensing a viscous product, the dispensing device being adapted to be driven by a plurality of pressurized gas cartridges, comprising;
-
a movable wall separating a product enclosure from a gas enclosure, the product enclosure having a dispensing orifice;
a fluid passage having a plurality of inlets, the fluid passage providing fluid communication between the plurality of inlets and the gas enclosure, each of the plurality of inlets being adapted to seal to one of the plurality of pressurized gas cartridges;
a check valve in the fluid passage associated with at least one of the plurality of inlets and having an open position that permits gas to flow from the at least one of the plurality of inlets through the check valve and a closed position that prevents gas from flowing through the check valve and exiting the passage through the at least one of the plurality of inlets;
wherein the dispensing device is adapted to cause gas from the gas cartridges to flow through the fluid passage into the gas enclosure and to cause the movable wall to move so that the gas enclosure expands and the product enclosure contracts, to thereby cause viscous product to be dispensed through the dispensing orifice of the product enclosure. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification