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US 2023/0175223 A1Published application
Water control gate abutment air vent
AssigneeHenry Obermeyer
InventorHenry K. Obermeyer
Life of this patent
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Abstract
The present invention discloses improved means of venting bottom hinged water control gates through the abutments over a wide range of tailwater elevations while minimizing the hazard of trapping water born debris in the abutment vents. A single pipe, or a plurality of pipes, may be provided. Check valves may be provided to exclude water borne trash.
Claims4
1) An apparatus for providing ventilation air beneath the nappe overtopping a water control gate wherein multiple vents are configured so as to exclude water from flowing into those vents above the gate panel and out those vents below the gate panel.
Dependencies are inferred from the claim text.