| 摘要 |
<p>Assembly for dispensing a liquid-to-pasty product, which includes a container (8) holding the product, a dispensing head (20) having a dispensing channel (21), the container (1) consisting of a material having a rigidity such that the dispensing of the product requires air uptake by the container, a pumping member having two valves, an inlet valve (33) and a dispensing valve (31), being provided for dispensing the product, the two-valve pumping member being of the type without air uptake: means being provided for establishing or preventing, at will, air uptake by the container (8). The dispensing head (20) possesses a plane bearing surface (20A) provided with a flexible diaphragm (30) defining a springy leaf (31) applied against the end of the plane part (20A) into which the dispensing channel (21) emerges. <IMAGE></p> |
