| 摘要 |
Container of variable volume with a safety ring to prevent expanding, according to the invention, is achieved from transversal ribs so as to reduce its own volume up to the level of the remaining liquid. It consists from a closure (1), a neck (2) whereon is set a fuse, which consists from a stand (5), a coil (4), a take-up (3), four guides (8), a spring (17), a nylon thread (6) and with, at the bottom achieved a four channel (8') thread (6), by means of which it prevents uncontrolled expanding of the container (7).
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