Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2011-03-01
2011-03-01
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C251S282000, C251S357000, C251S362000
Reexamination Certificate
active
07896028
ABSTRACT:
A control device includes a valve body, a seat ring, and an actuator. The valve body defines a flow-path for a fluid. The seat ring is disposed within the flow-path. The actuator is coupled to the valve body and includes a control member. The control member is adapted for displacement relative to the seat ring for regulating a flow of the fluid through the flow-path. The control member includes a scaling disk adapted to sealingly engage the seat ring and close the flow-path. The seat ring includes an orifice disposed within the flow-path such that the seat ring prevents at least a portion of the flow of the fluid from substantially perpendicularly impacting the sealing disk.
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Griffin, Jr. James L.
McKinney Harold J.
Roper Daniel G.
Scheffler Douglas J.
Weyer, Jr. Thomas L.
Fisher Controls International LLC
Fox John
Marshall & Gerstein & Borun LLP
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