| 摘要 |
A dosing dispenser comprises a generally vertical dosing cylinder (5) in the lower portion of a container (1) for a fluid product to be dispensed, a valve mechanism (14-17) at the bottom portion of the dosing cylinder, and a dosing piston (13) for transferral into and out of the dosing cylinder and having substantially the same external diameter as the internal diameter of the dosing cylinder. The dispenser is provided with an electric motor (7) for accomplishing axial movements of the dosing piston and with means for controlling said axial movements of the dosing piston (13) . |
