Vapor-liquid contact tray manway
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United States of America Patent
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-
Oct 7, 2003
Grant Date -
N/A
app pub date -
Nov 26, 2002
filing date -
Nov 28, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vapor-liquid contact tray is provided with a quick opening manway. The manway includes an opening formed in the tray and an overlying cover formed by a pair of panels joined together by a center hinged connection. The cover panels of the manway have upturned flanges formed along the lateral margins of the cover. The flanges are removably received within inverted U-shaped brackets that are positioned along the lateral margins of the tray adjacent the manway opening. When the cover is closed, the flanges are received tightly within the associated brackets to secure the lateral margins of the cover to the tray. The cover can be opened by lifting one or both cover panels to cause them to fold together about the center hinge. As the cover panels are lifted, the flanges tilt within the brackets and are released from engagement therewith. The end margins of the cover panels are secured to the adjacent portions of the tray by conventional manway clamps.
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