Valves and valve actuation – Valve actuator is valve casing or extension thereof – Sleeve valve
Reexamination Certificate
2005-08-16
2005-08-16
Bastianelli, John (Department: 3751)
Valves and valve actuation
Valve actuator is valve casing or extension thereof
Sleeve valve
C251S235000
Reexamination Certificate
active
06929245
ABSTRACT:
A valve assembly has a valve body and a fluid passage through the valve body with an inlet end and an outlet end. A valve seat is defined within the fluid passage. A sleeve is axially slidable within the fluid passage and has an upstream end, a downstream end, and an axial flow passage in communication with the inlet end and the outlet end of the fluid passage. A valve stem is pivotally mounted at a stem pivot spaced radially from the fluid passage. The valve stem is actuable to slide the sleeve between an open position with the downstream end spaced from the valve seat and a closed position with the downstream end borne against the valve seat to selectively control fluid flow through the flow passage to the outlet end.
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Gethmann Douglas P.
Lovell Michel K.
McCarty Michael W.
Bastianelli John
Fisher Controls International LLC
Marshall & Gerstein & Borun LLP
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