E02B7/44

Water control gate abutment air vent
12325968 · 2025-06-10 · ·

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.