Patent ID: 7490795

Claim:
An inflatable aircraft evacuation slide system comprising: an inflatable evacuation slide stored in an undeployed condition; a source of inflation gas for inflating said inflatable evacuation slide; a control circuit; and a control valve, said control valve comprising; a valve body defining an interior chamber and an inlet port in fluid communication with said source of inflation gas, a primary valve member, said primary valve member disposed in a fluid path between said inlet port and said interior chamber, said primary valve member opening in response to an external signal to permit pressurized fluid to flow from said inlet port into said interior chamber, a primary outlet port having a first end opening into said interior chamber and a second end in fluid communication with said inflatable evacuation slide, and a gas relief outlet disposed in a gas flow path between said interior chamber and said inflatable evacuation slide, said gas relief valve having a vent port opening into a region external to said valve body, said gas relief outlet further comprising a normally-open valve, open to the vent port opening, and an actuator, said actuator responsive to a signal from said control circuit to move said normally-open valve into a closed position to close said vent port of said gas relief outlet.