| 摘要 |
The air recovery system is designed for recovering the vacuum generated in a baby bottle when the perforation of the nipple is in a continuous liquid extraction process. The outlet flow is interrupted during the liquid extraction when the ventilation is not suitable for recovering the remaining portion, so that a ventilation system is required to promote a continuous extraction of the liquid. The said system comprises a little diaphragm with low resistance to the pressure exerted by the liquid. The lack of ventilation at the upper portion of the bottle contributes to the contraction of the diaphragm, thereby enabling the air to enter through labyrinth-type channels. When the extraction of the liquid is interrupted the diaphragm returns to its original position, thus forming a seal over the inner wall of the bottle and avoiding a possible leakage.
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