Valves and valve actuation – Electrically actuated valve – Rotary electric actuator
Reexamination Certificate
2006-08-29
2006-08-29
Bastianelli, John (Department: 3751)
Valves and valve actuation
Electrically actuated valve
Rotary electric actuator
C251S249500, C251S280000, C137S554000
Reexamination Certificate
active
07097148
ABSTRACT:
Apparatus for actuating a valve includes a support frame and at least one valve driving linkage arm, one end of which is rotatably connected to a valve stem of the valve and the other end of which is rotatably connected to a screw block. A motor connected to the frame is operatively connected to a motor driven shaft which is in threaded screw driving relationship with the screw block. The motor rotates the motor driven shaft which drives translational movement of the screw block which drives rotatable movement of the valve driving linkage arm which drives translational movement of the valve stem. The valve actuator may further include a sensory control element disposed in operative relationship with the valve stem, the sensory control element being adapted to provide control over the position of the valve stem by at least sensing the travel and/or position of the valve stem.
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DeWall Kevin G.
Nitzel Michael E.
Watkins John C
Bastianelli John
Battelle Energy Alliance, LLC
Dahl & Osterloth LLP
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