Hydraulic and earth engineering – Fluid control – treatment – or containment – Flow control
Patent
1992-02-10
1992-10-27
Corbin, David H.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Flow control
405101, 405115, E02B 720
Patent
active
051583968
ABSTRACT:
There is disclosed a liquid confinement structure to control the depth of water contained by earthen levees in a rice field or the like and to allow excess water to flow through a gate therein to prevent overflow and washout of the levees. The structure includes a horizontally elongated panel of rigid sheet aluminum for placement in a gap in an earthen water containment levee. The panel has a central cutaway portion closed by a rigid gate about eight inches high by about four feet wide articulated by a flexible strip joining the bottom of the gate to the horizontal edge of the cutaway portion. When the gate is tilted downward to permit water flow to lower the level of the water, the water is prevented from flowing around the ends of the gate by flaps forming seals between the edges of the gate and the edges of the opening in the panel. The gate element is held at a desired angle for controlling water level by a restraining chain at each end of the gate, the links of which may be captured in a slot in the top of the panel adjacent the cutaway portion. Openings at the extremities of the panel provide hand holds or means for engagement of hooks to facilitate installing, handling, or removing the structures.
REFERENCES:
patent: 1080944 (1913-12-01), Baker
patent: 2485755 (1949-10-01), Loosli
patent: 2694292 (1954-11-01), Wing
patent: 2698518 (1955-01-01), Hofferber
patent: 3091934 (1963-06-01), Jacobs
Corbin David H.
Keegan Robert R.
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