| 摘要 |
Fluid container 8 rigidly connected to the device intended to draw in the fluid from the container 8 towards the enclosure 9 of variable volume, delimited by the piston 1 sliding inside the cylinder 2, the enclosure 9 being obturated by an aerosol type valve (not shown). The spring (3) placed in the partially compressed state between the stops 4 and 5, does not apply any pressure on the fluid enclosed in the enclosure 9 (the position shown to the right of the vertical axis). The spring 3, further compressed just before the diffusion by bringing the stops towards each other, applies a pressure on the fluid enclosed in the enclosure 9 (the position shown to the left of the vertical axis). The opening of the valve opens the passage to the exterior for the enclosed fluid and ensures its diffusion as an aerosol. The upward displacement of the piston 1 and the displacement of the stop 5 towards the stop 4 are achieved by a rotational motion of the lateral wall 19 with respect to the lateral wall of the container 8. <IMAGE>
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