Document Type

Patent

Publication Date

11-23-2021

Abstract

A gravity irrigation system includes a distribution piping having apertures to distribute water to a field, and a valve located upstream of the distribution piping. The valve limits a pressure of the water being delivered to the distribution piping. The system also includes a sump to receive the water at a lowest elevation of the field, a depth sensor disposed within the sump, and a return pump disposed at least partially within the sump to move the water to an elevated portion of the field. The system also includes a motor to drive the return pump, and a power source coupled to a variable frequency drive that powers the motor and controls a motor speed proportionately to an indication of the depth sensor. The system also includes a transfer piping to bring the water from the return pump to a check valve and to the distribution piping.

Patent Number

US11178828

Application Number

US 20190307083 A1

Application Published

10-10-2019

Application Filed

12-12-2017

Assignee

Board of Trustees of the University of Arkansas (Little Rock, AR)

Comments

Christopher G. Henry, Rice Research and Extension Center, University of Arkansas, Fayetteville, AR

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