公开(公告)号：US20210148074A1

公开(公告)日：2021-05-20

申请号：US17045954

申请日：2019-04-12

Applicant: HATCH LTD.

Inventor： Gerold D. Westermann ,  Charles Richard Donnelly

IPC: E02B7/20 ,  E02B7/44 ,  E02B7/50

Abstract: A gate, leaf, and method for controlling water levels in a body of water. The gate comprises a moveable barrier (which may be a leaf), a restoring device such as a spring, and a profile. The barrier automatically opens or closes an amount to allow less or more water through as a result of changes in the water pressure in the upstream body of water. This helps maintain a water level in the upstream body of water. The profile disturbs the flow of water through the gate to influence the water pressure on the barrier. The profile may help provide a more linear curve for the water moment on the barrier across the range of barrier positions. A more linear curve for the water moment may help maintain equilibrium with the restoring moment across the range of barrier positions. The method comprises disturbing the flow of water over a barrier to redistribute the pressures of the water on the barrier.