Patent ID: 8505639

Claim:
A downhole flow tool, comprising: a housing having a bore and defining first and second ports communicating the bore outside the housing; a first insert disposed in the bore and movable from a first position to a second position in response to fluid pressure from the first port; a second insert movably disposed in the bore relative to the second port, the second insert having a catch for moving the second insert, the catch disposed in an interior passage of the second insert, the catch having an inactive condition engaged by a portion of the first insert when the first insert has the first position, the catch having a default active condition disengaged by the portion of the first insert and exposed in the bore when the first insert moves toward the second position, the second insert movable from a closed condition restricting fluid communication through the second port to an opened condition permitting fluid communication through the second port; and a controller opening fluid communication through the first port in response to a predetermined signal.