| 摘要 |
IMPROVED NECK A container 10 of the type having side walls and top and bottom ends, said top end 2 including an access hole 4 surrounded by an upstanding neck 5 adapted to receive a suitable closure means, wherein the neck is integrally formed from the material of the top end. There is also provided a closure means 12 comprising a cap having a top 13 and a skirt 15 extending downwardly therefrom, the skirt having an internal thread to engage the external thread of the neck, wherein the top 13a of the cap is formed in a concave shape, the opposite surface 13b being convex and extending downwardly towards the interior of the cap.
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