abstract |
One aspect of the present invention provides a member (112, 165) for a fluid dispenser (110) defining a dosing chamber (120) for a piston member (114) to stroke therein and having a suitable Engaging the fluid outlet (152) of the fluid dispenser or the end (160) of a seal (154) overlying said fluid outlet (152) to selectively close and open the fluid outlet (152) or seal ( 154). Other aspects are disclosed herein. |