Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1997-08-30
1999-10-19
Graysay, Tamara L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
405103, 160 1, 49 26, E02B 726
Patent
active
059676973
ABSTRACT:
A flood gate structure incorporating a safety device thereon to prevent harm through crushing or trapping of animals, such as manatees by the flood gate when passing into its closed position. An object sensor, along with an override sensor assembly, are provided and coupled to the flood gate and are positioned to open or close a circuit associated with the object and override sensor assemblies thereby regulating current flow to a drive motor which is drivingly attached to the flood gate and, upon activation thereof, serves to move the flood gate between its open and closed position. Contact of the object sensor with an animal or any other object located in interruptive relation to the flood gate, while closing, will serve to open the aforementioned circuit and prevent continued closure or affect re-opening of the flood gate until the animal or object is removed, while contact of the override sensor with an underlying support surface serves to permit complete closure of the gate despite engagement of the object sensor with the underlying support surface.
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Graysay Tamara L.
Lee Jong-Suk
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