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US 8,631,970 B2Granted
Multi-chamber material dispensing system and method for making same
AssigneeThe Procter & Gamble Company
InventorsJohn Geoffrey Chan, Lawrence Edward O'Brien
Life of this patent
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Abstract
Material dispensing systems and methods for make such systems are described. The material dispensing systems employ a collapsible container having at least two distinct chambers, and is at least partially surrounded by an elastically deformable band. The band stretches as the container is filled with a flowable composition, thereby creating potential energy which can then be used to dispense the composition in lieu of a propellant and/or pressurized container.
Claims16
A material dispensing system, comprising:
- a. a collapsible bag comprising at least two distinct compartments separated by a dividing wall made of the same material as the rest of the collapsible bag;
- b. an elastically deformable band surrounding at least a portion of the bag, wherein the elastically deformable band is constructed of material that permits the transfer of invisible and/or infrared light waves through a wall of the elastically deformable band and
- c. an outer container, wherein the material dispensing system is disposed in the outer container, wherein the outer container comprises a polymeric material, and wherein the outer container comprises an open end, an opposing closed end, and a reduced diameter region disposed between the open end and the closed end.
A personal care product, comprising:
- a. an outer container comprising a polymeric material, and wherein the outer container comprises an open end, an opposing closed end, and a reduced diameter region disposed between the open end and the closed end;
- b. a material dispensing system disposed in the outer container, the material dispensing system comprising:
- i. a collapsible bag comprising at least two distinct chambers separated by a dividing wall made of the same material as the rest of the collapsible bag said collapsible bag comprising a bag open end and a bag closed end;
- ii. a valve disposed in the bag open end;
- and
- iii. an elastic member having a length of less than about 2 inches in an unstretched configuration, said elastic member surrounding at least a portion of the bag and being affixed to the bag closed end either chemically or via mechanical means beyond mere friction;
- and
- c. a personal care composition comprising a first composition and a second composition each composition contained within one of the said at least two distinct chambers, the personal care composition disposed within the collapsible bag such that the elastic member is stretched both axially and radially, and comprises potential energy in connection with being stretched;
- whereupon opening the valve, the personal care composition is permitted to flow out of the collapsible bag via the potential energy from the elastic member being applied to the bag, and wherein as the potential energy dissipates the elastic member shrinks both axially and radially towards its unstretched configuration.
6 more elements
Dependencies are inferred from the claim text.