| 摘要 |
Liquids dispenser with a dispenser conduit 4 in communication with an expulsion passage 22; an aspirator conduit 6 in communication with an aspiration passage 23 and which defines a valve seat 26; a cylinder 8 which defines a chamber 10; a piston 14 and a valve element 28 equipped with a base 30 which closes the chamber 10 and comprises an eyelet 37 and orifices 48; a splayed body 40 emerging from the base 30 which is housed in the tubular expulsion passage 22; the end outer edge 44 of which tends to be held applied to the expulsion passage 22; and which, between same and the expulsion passage 22, leaves a space 46 in communication with the orifices 48 of the chamber 10; and a piston 50 retained with play in the eyelet 37 and displaceable between opening and closing positions, in which it is applied to the valve seat 26. <IMAGE>
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