Fluid sprinkling – spraying – and diffusing – Processes – Involving slow diffusion
Reexamination Certificate
2004-06-14
2009-11-10
Nguyen, Dinh Q (Department: 3752)
Fluid sprinkling, spraying, and diffusing
Processes
Involving slow diffusion
C239S034000, C239S337000, C239S356000, C239S363000, C222S386500, C222S399000
Reexamination Certificate
active
07614568
ABSTRACT:
A device for controllably releasing a fluid into an ambient environment. According to a particular embodiment of the present invention, the device comprises a housing having a fluid compartment and an orifice compartment disposed adjacent thereto and in fluid communication therewith via an orifice. The fluid compartment contains the fluid for release to the ambient environment. The orifice compartment includes a fluid exit opening covered by a removable sealing element and contains an initial quantity of fluid when the device is in an inactivated state. A fluid restrictor is disposed adjacent the orifice to restrict fluid flow from the fluid compartment into the orifice compartment in the inactivated state. A gas-generating cell is in selective communication with the fluid compartment such that gas generated by the cell is directed into the fluid compartment when the device is in an activated state. A fluid membrane is disposed between the gas-generating cell and the fluid compartment that allows the gas generated by the cell to pass therethrough to the fluid compartment in the activated state while preventing fluid within the fluid container from passing therethrough to the cell in the inactivated state. The device is activated by removing the sealing element to allow the initial quantity of fluid to exit out of the orifice compartment via the fluid exit opening and activating the cell to generate gas and force fluid from the fluid compartment to the orifice compartment and out the fluid exit opening in a controlled manner.
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Joshi Ashok V.
McEvoy John J.
Wold Truman
Fonda David
Microlin LLC
Nguyen Dinh Q
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