Gate valve
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United States of America Patent
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N/A
Issued Date -
Apr 5, 2007
app pub date -
Apr 30, 2004
filing date -
May 2, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The gate valve includes a valve housing (12) having a fluid conduit (14) and defining a valve seat (16) and a support surface (18), a seal plate (20), a counter plate (22) having cushion (72) vulcanized to a surface facing the support surface (18), and an actuator (34) for moving the seal plate and the counter plate between respective open and closed positions. The cushion is configured to prevent metal-to-metal contact between the counter plate and the support surface of the valve housing.
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