Valves and valve actuation – Mechanical movement actuator – Particularly packed or sealed
Reexamination Certificate
2006-08-22
2006-08-22
Bastianelli, John (Department: 3751)
Valves and valve actuation
Mechanical movement actuator
Particularly packed or sealed
C251S315010
Reexamination Certificate
active
07093819
ABSTRACT:
A valve100comprising a one piece valve body112having an axial fluid bore124and a rotatable fluid control element110. The body112includes an integral bracket128which provides an open access area between the bracket128and the main body112of the valve100. A valve stem130is disposed within a stem bore135, and137extending from the valve body112to the bracket128, and engaging the flow control element110. A contiguous single piece gland flange142secures packing134disposed between a valve body bore137and the stem130. The stem130includes an enlarged shoulder152which engages a contiguous single piece shear bushing148having a diameter greater than the diameter of the stem bore130, thereby preventing removal and/or blowout of the stem130without prior removal of the shear bushing148.
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Hall Brian R.
Williams, Jr. John B.
Bastianelli John
Lundeen Daniel N.
Lundeen & Dickinson LLP
Mogas Industries, Inc.
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