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An aerosol generating device comprising a casing having a base end and a ainer end, with a firing primer mounted through the base end and extending into a propellant zone which contains a propellant. The firing primer is thereby detonationally connected to the propellant. A diffuser plate is mounted

An aerosol generating device comprising a casing having a base end and a ainer end, with a firing primer mounted through the base end and extending into a propellant zone which contains a propellant. The firing primer is thereby detonationally connected to the propellant. A diffuser plate is mounted inside of the casing on a side of the propellant zone opposite to the firing primer. A filler area inside of the casing is adjacent to the diffuser on an opposite side to the propellant zone. The filler area contains particles of a powder having interstitial void space between the particles. A frangible end seal is attached to the casing within the retainer end, with the frangible end seal being positioned adjacent to the filler area on an opposite side of the diffuser. When activated, propellant gases expand through the diffuser into the fill area deagglomerating and fluidizing the powder particles and increasing pressure until the end seal ruptures and releases an aerosol cloud. A method for disseminating an aerosol using the device is also disclosed.

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[ What is claimed is:] [20.] A method of disseminating an aerosol, comprising:providing a device comprising a casing having a base end and a retainer end, a firing primer mounted through the base end which extends to a propellant zone, a propellant retained within the propellant zone, the firing pri

[ What is claimed is:] [20.] A method of disseminating an aerosol, comprising:providing a device comprising a casing having a base end and a retainer end, a firing primer mounted through the base end which extends to a propellant zone, a propellant retained within the propellant zone, the firing primer being connected to the propellant, a diffuser inside of the casing and on a side of the propellant zone opposite to the firing primer, a filler area inside of the casing, the filler area being adjacent to the diffuser on a side opposite to the propellant zone, the filler area containing particles of a powder having interstitial void space between the particles, and, a frangible end seal attached to the casing, the frangible end seal being positioned adjacent to the filler area on a side opposite side the diffuser; and,actuating the device.