| 摘要 |
<p>There is provided a vessel 10 comprising a fibre-wound plastics container 12 with an upstanding neck 13 around which is located a collar 14, to which is attached a release mechanism 16 for dispensing substances from the container 12. The collar 14 comprises a plurality of spaced barbs (32, figure 5) which engage with a neck 13 of the container 12 to prevent removal of the collar 14 through barbs (32, figure 5) engaging the neck 13 at a number of positions. A plurality of barbs (32, figure 5) may be provided, preferably circumferentially spaced around the internal face of the collar 14. The barbed elements (32, figure 5) may be replaced by an external screw thread on the neck 13 of the container 12 and an internal screw thread on the collar 14. The collar 14 may be made of metal and may comprise a flange 28 which locates in a seat on the container 12. The neck 13 of the container 12 may comprise a groove in which a sealing element such as o-ring 36 is located.</p> |
