Valve and method for dense phase flow control
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United States of America Patent
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Jan 1, 2013
Grant Date -
May 20, 2010
app pub date -
Nov 14, 2008
filing date -
Nov 14, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A valve for controlling a flow of granular material and fluid comprises a body having a first end, a second end, and defining an interior surface. An inlet is formed proximate the first end for receiving the granular material and fluid. An outlet is formed downstream of the inlet for selectively discharging the granular material and fluid. A first member is slideably captured within the body and a resilient member is operationally coupled to the first member. The first member is moveable between an open position at which the granular material and fluid flow through the outlet, and a closed position upstream of the outlet at which the granular material is substantially prevented from flowing through the outlet. The resilient member is moveable between a retracted position and an expanded position at which it is engaged with the interior surface to substantially prevent the fluid from flowing through the outlet.
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