| 摘要 |
The invention concerns an automatic fluid dispensing device comprising a container (1), a push-button (2), a plurality of springs (4, 13), at least one cam (5), a plunger (7), an aerosol (14) containing the fluid (17) to be dispensed. The invention is characterized in that it further comprises a sealed pressure chamber (12) provided with at least one outlet for releasing the pressure from the pressure chamber (12) when the latter is higher than atmospheric pressure, the compression of the push-button (2) acting, via the cam (5) of the plunger (7) to increase the pressure in said chamber (12) acting on the aerosol (14) so that it delivers the fluid during a predetermined time. The invention also concerns a method using said device. |
