| 摘要 |
<p>The device, has a closing element (2), which is carried by fluid medium e.g. compressed air, into a position, in which the cross section of the piping is closed. The closing device is made of rubber-elastic material. The closing element is formed as balloon (3) and internal space (4) of closing element can be impinged with the pressurized medium e.g. compressed air over a control line (5). An independent claim is also included for the application of the device.</p> |
