Retrofit for floating roof tanks
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United States of America Patent
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Feb 4, 2014
Grant Date -
N/A
app pub date -
Dec 22, 2009
filing date -
Dec 22, 2009
priority date (Note) -
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Abstract
Floating roof tanks typically have a leg-actuated pressure-vacuum vent to provide relief upon emptying or filling the space below the roof. This vent leg must hit prior to other legs requiring additional working capital inventory (heel). This retrofit non-leg actuated pressure vacuum (P-V) vent reduces inventory. This P-V vent retrofit provides necessary pressure or vacuum management and at less required tank bottom inventory. The retrofit vent also eliminates the leg-actuated P-V vent.
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Cited Art Landscape
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