Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Cleaning or steam sterilizing
Reexamination Certificate
2011-05-31
2011-05-31
Bastianelli, John (Department: 3753)
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Cleaning or steam sterilizing
C137S375000, C251S327000, C251S329000, C251S361000, C251S363000
Reexamination Certificate
active
07950410
ABSTRACT:
A gate valve includes a valve body having a cylindrical passage defining a flow path through the valve, a gate for controlling fluid flow through the valve and a replaceable wear-resistant flow-path liner for in the flow path. The flow-path liner includes a plurality of replaceable wear-resistant inserts, including wear sleeves lining ports of the valve body, valve seats and a gate insert for a flow path bore through the gate. Each replaceable valve seat has a wiper ring for cleaning the gate when it opens and closes. By regularly inspecting and replacing worn-out inserts, the service life of the gate valve can be prolonged and the expense associated with replacing or rebuilding the valve body is avoided.
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Dallas L. Murray
McGuire Bob
Bastianelli John
Nelson Mullins Riley & Scarborough LLP
Stinger Wellhead Protection, Inc.
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