Water flow responsive barrier for gutters and storm drains with rotary actuator
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United States of America Patent
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Nov 23, 2004
Grant Date -
Aug 5, 2004
app pub date -
Jan 31, 2003
filing date -
Jan 31, 2003
priority date (Note) -
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Abstract
A barrier to exclude trash and debris from storm drains wich includes a pivoted gate moved by a vane-type rotor. The rotor is actuated to open an entry to the storm drain by flow of water at a rate above and agreeable minimum, and to maintain it closed at no or low flow rates.
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