| 摘要 |
1. Device for dispensing gaseous liquid or powdered substances, comprising a hermetically sealable pressure vessel (5) at one end of which a dispensing aperture is located which is preferably controlled by a valve (3) and the other end of which is closed by a closure cap (13), a piston (15, 16) displaceable in the pressure vessel (5) and dividing the latter into two space portions of which the first space portion, which is connected to the dispensing aperture, serves for accommodating the material to be dispensed, and the second space portion accommodates a pressurised propellant container (11) seated on a support mounting fitted to the piston (15, 16) and pierceable by a piercing unit (6, 8) attached to the closure cap (13), characterised in that the pressure vessel (5) is releasably sealable and that the piston (15, 16) forms the bottom of a deformable receptacle (9) holding the substance (10) to be dispensed and arranged in the first space portion ; the receptacle being pierceable through by a piercing tube (4) opening into the dispensing aperture. |
