Fire fighting foam dispensing system and related method
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United States of America Patent
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Apr 27, 2010
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N/A
app pub date -
Oct 12, 2007
filing date -
Oct 12, 2007
priority date (Note) -
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Abstract
A fire fighting foam dispensing system includes a water inlet adapted to receive a flow of water, a first variable speed pump adapted to inject foam concentrate into the flow of water, a second variable speed pump adapted to inject foam concentrate into the flow of water, a foam outlet adapted to discharge fire fighting foam, a measuring apparatus adapted to measure flow rate in at least one of the water inlet and the foam outlet, and a system controller adapted to detect the flow rate from the measuring apparatus, and activate the second variable speed pump only upon the measured flow rate exceeding a predetermined flow rate value.
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