| 摘要 |
<p>The invention relates to a barrel (1), including: a bag (2), a container (4), and a lid (9) provided with means (14) for sealingly and rigidly combining the latter; a cap (25) including a body (26) supporting closing means (27a) and racking means (27b); a neck part (21), which is structurally separate from the lid (9), wherein the outer side surface (22a) of the neck part (21) and the inner side surface (16a) of the lid opening (9) are provided with means for sealingly and rigidly combining the latter, the bag (2) is connected to the neck part (21) near the inner end thereof, at least one hole (18) made in the container (4) and/or the lid (9) is capable of enabling a positively pressurized gas to be injected inside the barrel (1) and outside the bag (2) so as to compress the bag (2), sealing means (19) are capable of sealing or opening the hole (18) and, when the same seals the hole (18), of maintaining the positive pressure prevailing inside the barrel (1).</p> |
