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Irrigation system

  • US 4,877,189 A
  • Filed: 05/18/1987
  • Issued: 10/31/1989
  • Est. Priority Date: 05/18/1987
  • Status: Expired due to Fees
First Claim
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1. An agricultural irrigation system for operation along an elongated pressurized water main having sections of land adjacent to opposite sides thereof, said water main including spaced, normally closed, access valves, the irrigation system comprising:

  • a length of water delivery adapted to extend substantially perpendicular to the water main;

    a plurality of cart means supporting the length of water delivery pipe for movement along the ground surface in a forward direction of travel;

    drive means on said cart means for moving the cart means and water delivery pipe substantially transverse to the delivery pipe length;

    water applicator means located along the delivery pipe length for selective water application therefrom;

    water delivery piper rotation means for selectively controlling the drive means to rotate the length of water delivery pipe to a position along said water main from one side thereof to an opposite side thereof so that the same length of water delivery pipe may irrigate two sections of land;

    connector means on the water delivery pipe for selectively connecting the delivery pipe to and opening the normally closed access valves, said connector means further comprising;

    valve coupling means on the delivery pipe for selective engagement with the individual access valves to open the valves such that water is delivered therefrom through the delivery pipe,swing arm means having a free swinging end mounting said valve coupling means and a remaining end attached to one end of the traveling water delivery pipe for guided transport of the coupling means between access valves,pivot means mounting the swing arm means to the water delivery pipe for angular movement relative thereto,valve coupling travel means for supporting and moving the free swinging end of the swing arm means so as to transport the valve coupling means between valves,valve coupler rotation means for allowing horizontal rotation of the swing arm means when connection is made to an access valve and the remaining swing arm end is carried forward by the delivery pipe,delivery pipe positioning means for maintaining the delivery pipe directionally aligned with the main during forward travel of the delivery pipe and subsequent water application,control means associated with the valve coupling means, valve coupling travel means, and delivery pipe positioning means for controlling the uncoupling, travel, and coupling of the valve coupling means along the series of access valves.

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