Irrigation System Topology with Improved System Features

  This proposed system is protected by US Patents 7,819,345, 7,942,350, Canadian patent 2,693,158 and a pending Canadian patent.

  Click HERE to view the patent at Google Patents.


   Contact Information:

 Modern 2-Wire Intelligent Irrigation Systems use a single wire pair to create a remotely controlled network.
 The wire pair is separately trenched from the PVC pipe.

  I propose to embed the wire pair into the PVC pipe.
  Then, each PVC connection will simultaneously connect the water path AND the wire pair to the next segment of PVC.

  An intelligent irrigation system using this invention should cost less, install more quickly and have improved system reliability.
  The embedded wire pair will support the electronics of ALL existing 2-wire systems such as Rainbird, Toro, Hunter, and Netafim.

  Fig 1 shows a segment of PVC pipe with an extra extrusion on its top that contains a wire pair. When the PVC pipe is cut,
  the extrusion containing the wires is cut back from the edge of the pipe cut. The cut is can be done in the field with a simple tool.

   This cut back, or offset, is done to insure that the end face of the PVC is smooth, and will make a tight fit with the gasket in its  
   associated coupler.

  In Fig 1, a non-conducting End Clip has conductive metal pins that are forced into the strands of the wire pairs in order to make  
  electrical contact.


   In Figure 2 below, are pipe couplers that contain conductive buttons that are located in a chamber that mates with the PVC pipe.
  The metal pins on the PVC pipe mate with the conductive buttons to create a wire pair which can support a digital control network
  to control the intelligent irrigation system.

  Another segment of PVC Pipe-with-Wires is then connected to the opposite end of the Pipe Coupler so that the system can be extended.

Fig 2

  Fig 3 below, shows more detail of adapter in Fig 2. The left end of Fig 3 shows a mirror image chamber containing a pair of conductive buttons.

  These buttons are connected to wires that pass through the body of the adapter, and which attach to the conductive buttons in the right side chamber.
  These wires connect the corresponding PVC Pipe pins on each end of the adapter, and the electric circuit is thereby continued through the Pipe Coupler.


  A monitor port on the adapter allows for user connection to the internal wire pair for diagnostic purposes. The monitor port can also be used for the

  connection of surge protectors.

  The electrical network can be used to selectively "trickle charge" batteries that are located at the remote locations.

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