Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Reexamination Certificate
2005-04-19
2005-04-19
Rivell, John (Department: 3753)
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
C137S070000, C251S058000
Reexamination Certificate
active
06880568
ABSTRACT:
A pressure relief system is provided to detect and abate an overpressure condition in a pressurized fluid disposed in a conduit. The system includes a valve assembly and an actuator configured to actuate the valve assembly to establish an overpressure path for the pressurized fluid. The system further includes a piston assembly coupled to the conduit, a pressure responsive member (preferably a collapsible buckling pin) configured to mechanically fail when an axially directed compressive force exceeds a threshold level, and a multi-port, two-position valve disposed between the piston assembly and the pressure responsive member. The multi-port, two-position valve includes a spool that moves from a first position to a second position upon failure of the pressure responsive member, thereby directing control fluid through the spool to the actuator assembly.
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Fellers , Snider, et al.
Rivell John
Taylor Innovations L.L.C.
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