| 摘要 |
This device comprises an elastic tube 1 forming a sealed air chamber connected to an over pressure detection device 6, 9 delivering, in response to an overpressure detected in the chamber, an electrical information item triggering a signal, and a safety device 10, 11 triggering the said signal in the event of cutting of the elastic tube 1. The safety device is constituted by an electrical circuit loop 10, 11 placed in the elastic pipe. <IMAGE>
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