CABLE TRANSPORTATION INSTALLATION WITH IMPROVED SAFETY, METHOD FOR DETECTING AN EVENT ON A CABLE AND METHOD FOR MANUFACTURING ONE SUCH INSTALLATION
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United States of America Patent
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Issued Date -
Jul 21, 2022
app pub date -
Jan 5, 2022
filing date -
Jan 15, 2021
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Abstract
The cable transportation installation includes a cable supported by several sheaves of several pillars. At least one pillar is provided with at least one optical fuse defining first and second states enabling or preventing flow of an optical signal. A detection device is configured to detect derailment of the cable from one of the sheaves. The detection device makes a signal flow through the optical fuses to monitor their state. The optical fuses are configured to change state between the first state and the second state when the at least one optical fuse comes into contact with the cable or with one of its supports. The detection device emits an alarm in response to detection of a change of state of one of the optical fuses. Each optical fuse includes an optical fibre.
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