Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Reexamination Certificate
2007-05-22
2007-05-22
Bastianelli, John (Department: 3751)
Valves and valve actuation
Mechanical movement actuator
Particularly packed or sealed
C251S368000, C277S523000
Reexamination Certificate
active
11263308
ABSTRACT:
In accordance with the present invention, there is provided a lie loaded packing assembly for a valve which comprises a valve body defining a passage having a valve stem moveably disposed therein and selectively moveable between open and closed positions. Extending about a portion of the valve stem is a packing. One end of a sleeve of the valve bears axially onto and compresses the packing, with a spigot of the valve being cooperatively engaged to the opposite end of the sleeve. A clamp of the valve is cooperatively engaged to the valve body, with a pair of bolts extending between and being secured to the clamp, the spigot, and a flange member which is itself cooperatively engaged to the spigot. The combination of the bolt, spigot and flange member provide an integral spring construction for the valve.
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Bastianelli John
Control Components Inc.
Stetina Brunda Garred & Brucker
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