| 摘要 |
Manually operated pump for the dosed dispensing of products comprising a pump body comprising: - a plunger tube (2) going into the container, - an outlet spout (3), - an inlet valve (4), - an outlet valve (5), - a pumping device, - a hand-operated control device, this pump being characterised in that the body (1) comprises a connecting pipe (6, 7) connecting the inlet to the product outlet and is provided with outlet and inlet valves (4, 5) and in that the pumping device is a deformable volume (8) subjected to the action of the control device (9), this pumping device (8) being connected the segment (6) of the pipe included between the two valves (4, 5). <IMAGE>
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