| 摘要 |
An emergency fuel shutoff device for interrupting the flow of gas or other fuel to a burner in the event of a malfunction or fire. The device uses a normally closed spring loaded fuel valve which is held open by tension along a cable. The cable has several fusible links along its length. If any of the fusible links melt, the tension in the chain is released and the spring loaded fuel valve closes, shutting off the flow of fuel to the burner. Preferably the device also has a manual shut-off station which has a pull ring which also releases the tension in the cable shutting off the flow of fuel. When the tension in the cable is released a horn or strobe light provides an audible and a visible signal that the fuel valve has been closed. The horn and light are preferably powered by standby batteries.
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