Patent ID: 7147172

Claim:
A zero leakage long term storage dispenser for delivering an aerosol containing decontamination fluid comprising; a hermetically sealed housing filled with decontamination fluid, an upper end of said housing having bellows type convolutions formed as part of an outer wall thereof; a dip tube within said housing having an upper end attached to a top wall of said housing and extending downwardly with a lower end of said dip tube open adjacent a bottom wall of said housing; a support tube within said housing attached to said bottom wall of said housing extending upwardly, an upper end of said support tube providing support for a propellant tank mounted above said support tube, the upper end of said support tube having a first hollow piercing needle extending upwardly, a pointed end of said first hollow piercing needle being aligned with and spaced from a sealed end of said propellant tank; a cap enclosing the upper end of said housing and threadably engaged with the outer wall of said housing below said bellows type convolutions; a discharge means mounted outside on said cap having a second hollow piercing needle extending down from said cap terminating above said top wall of said housing and aligned with said dip tube so that rotation of said cap will cause said second hollow piercing needle to penetrate said top wall of said housing and couple with said dip tube, wherein further rotation of said cap causing said first hollow piercing needle to pierce the sealed end of said propellant tank releasing propellant directly into said housing for driving said decontamination fluid up through said dip tube and out through said second hollow piercing needle and through said discharge means.