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Automatic water control system for open ditch drainage

  • US 9,537,183 B2
  • Filed: 06/15/2015
  • Issued: 01/03/2017
  • Est. Priority Date: 06/16/2014
  • Status: Active Grant
First Claim
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1. A drainage control apparatus configured to be disposed in a drainage ditch adjacent a field wherein the drainage control apparatus controls the level of water in the drainage ditch, the drainage control apparatus comprising:

  • a frame structure;

    a weir plate supported by the frame structure and adapted to extend across at least a portion of the drainage ditch;

    an opening formed in the weir plate for permitting water to flow through the opening in the weir plate;

    a pair of spaced apart vertical guide rails supported directly or indirectly by the weir plate in the vicinity of the opening in the weir plate;

    a gate including two side edges, an upper edge, a lower edge, a front and a back moveably mounted in the vertical guide rails adjacent the opening in the weir plate and moveable between open and closed positions for opening and closing the opening in the weir plate;

    each guide rail including a main body and a finger;

    a pair of vertical seals unattached to the gate and held in the guide rails;

    each guide rail engaging one of the vertical seals and clamping the vertical seal in place in the guide rail; and

    a transverse seal separate from the vertical seals and disposed across the back of the gate between the upper and lower edges of the gate for preventing water from flowing through the opening in the weir plate and past the transverse seal when the gate assumes the closed position.

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