| 摘要 |
Stopper, for cable passages or conduits, having a first chamber placed in said passage, said chamber comprising at least one bearing surface placed in this passage and adapted to cooperate with a closure element, a second chamber opening into the first chamber, said closure element being housed in said second chamber in a first position of the stopper, and means for moving the closure element in the first chamber to a second position of the stopper, where the cable is withdrawn from the passage, further comprising a separating member, situated between said first chamber and said second chamber, this member being adapted for controlling the movement of the closure element from the second chamber to the first chamber.
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