CPC B67D 7/0294 (2013.01) [B65D 51/1616 (2013.01); B67D 2001/0825 (2013.01)] | 12 Claims |
1. A retrieval system (1) comprising a container (2) having a dip tube (5) and designed to hold a liquid (3), with a retrieval head (4) which is fastenable to the dip tube (5), so that liquid (3) is retrievable from the container (2) via the dip tube (5) and the retrieval head (4) or liquid (3) is suppliable to the container (2), wherein the retrieval head (4) has a liquid channel (10) in which the liquid (3) retrieved from or supplied to the container (2) is conducted, characterized in that an opening is provided in a wall (11) bounding the liquid channel (10), wherein, when the retrieval head (4) is fastened to the dip tube (5), the opening is closed in such a way that it is secured against the entering of gas, and wherein, when the retrieval head (4) is unfastened from the dip tube (5), the opening is no longer closed, so that gas passes into the liquid channel (10) via the opening wherein
at least one ventilation opening (20) is provided in the wall of the dip tube (5), wherein, when the retrieval head (4) is fastened to the dip tube (5), the closed opening is uncoupled from the ventilation opening (20), and wherein, when the retrieval head (4) is unfastened from the dip tube (5), gas passes from the ventilation opening (20) via the opening into the liquid channel (10).
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