Pressure activation device
First Claim
1. An improved activation device, suited for use in combination with a dispensing container for flowable product, containing a trigger enclosure in communication with at least first and second components of an at least two-component gas generating system for pressurizing the container, the trigger enclosure housing the second component of the gas generating system;
- wherein the improvement comprises;
said trigger enclosure is an at least semi-rigid housing defining therein a housing internal volume and an external opening communicating with said housing internal volume, wherein the housing internal volume contains the second component of the gas generating system and is larger in volume than the contained volume of the second component, thereby defining an internal headspace; and
a membrane covering and sealing said opening and being rupturable by deformation into said housing internal volume under pressure externally applied to the membrane said pressure supplied into the dispensing container.
1 Assignment
0 Petitions
Accused Products
Abstract
A trigger (18), containing one component (28) of a two component gas generating system and having a headspace (37), is closed by a pressure rupturable membrane (36) and located in an expandable pouch (10), in a reservoir of the other component (19) of the gas generating system, with the membrane (36) facing down. The pouch (10) is inserted into a dispensing container (44) for flowable product, and the container is sealed. Thereafter, the trigger (18) is activated by externally pressurizing the container by back flow of fluid through a dispensing valve (46), either by adding a gas or by adding flowable product, causing the membrane (36) to rupture and the trigger (18) to discharge its contents into the reservoir of the other gas generating chemical (19).
27 Citations
20 Claims
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1. An improved activation device, suited for use in combination with a dispensing container for flowable product, containing a trigger enclosure in communication with at least first and second components of an at least two-component gas generating system for pressurizing the container, the trigger enclosure housing the second component of the gas generating system;
- wherein the improvement comprises;
said trigger enclosure is an at least semi-rigid housing defining therein a housing internal volume and an external opening communicating with said housing internal volume, wherein the housing internal volume contains the second component of the gas generating system and is larger in volume than the contained volume of the second component, thereby defining an internal headspace; and a membrane covering and sealing said opening and being rupturable by deformation into said housing internal volume under pressure externally applied to the membrane said pressure supplied into the dispensing container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- wherein the improvement comprises;
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13. The improved method of activating a trigger in a pressure generating system used in combination with a dispensing container for flowable product, containing a trigger enclosure and an at least two-component gas generating system, in which the dispensing container holds at least a first component of the gas generating system externally of the trigger enclosure, and the trigger enclosure houses a second component of the gas generating system;
- comprising;
providing a trigger enclosure that is at least semi-rigid and defines an external opening therethrough and a housing internal volume therein; placing in said housing internal volume a relatively lesser volume of said second component of the gas generating system, thereby providing a headspace; selecting a membrane of material capable of rupturing under a preselected externally applied pressure when covering an opening of the size of said opening in the trigger enclosure and with the headspace provided therein; sealing said opening in the trigger enclosure with said membrane; locating the trigger enclosure in said dispensing container; sealing the dispensing container; and supplying pressure into the dispensing container in quantity sufficient to deform the membrane into the housing internal volume and thereby rupture the membrane. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
- comprising;
Specification