| 摘要 |
A disposable bottle for compressed gas is fitted with a valve body 3 with a through-passage 6 in which there is freely mounted a rod 8 having on the inner side a valve head 10 co-operating with a seat 7, and on the outer side a stop 11 of greater dimension than the passage 6 and detachable, when filling is finished and valve head 10 bears on valve seat 7 under the effect of gas pressure in the bottle, along an incipient tear 16. At the start of a removal of compressed gas which is effected by a thrust on the valve rod 8, this latter falls to the bottom of the receptacle, so that this latter can no longer be filled afresh. <IMAGE> |
