| 摘要 |
<p>By a receptacle (1) in which the pressure can be changed by squeezing for the dosing through a nozzle outlet (2) of the contains, and in which the nozzle outlet can be closed by a screw cap (3), the interior of the receptacle is connected with the nozzle opening via a compressible tube (4) leading through the nozzle. The nozzle has two slots passing through the opening and situated opposite each other. On the two nozzle walls (5) separated by the slots are found two projections facing each other (6). When the screw cap (3) is affixed in such a manner that the slots are squeezed together, the projections (6) will exert such pressure on the tube (4) that passage even of liquids of low viscosity is prevented.</p> |
