Irrigation spray nozzles for rectangular patterns

Patent metadata

Field	Value
Publication number	US-9555422-B2
Application number	US-61011609-A
Country	US
Kind code	B2
Filing date	Oct 30, 2009
Priority date	Oct 30, 2008
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

An inexpensive, durable and efficient irrigation nozzle assembly is adapted to generate a specialized rectangular spray in a 3-jet fluidic circuit which generates a substantially planar rectangular spray from a confluence of three jets. The 3-jet geometry circuit has selected floor & taper features configured to create a customizable rectangular or triangular spray pattern. Depending on the throw desired, the nozzle assembly of the present invention can be configured with a second fluidic circuit to generate a flat fan to obtain various aspect ratios in a rectangular spray.

First claim

What is claimed is:

1. An inexpensive, durable and efficient irrigation nozzle adapted to generate a specialized rectangular spray, comprising:
a 3-jet fluidic circuit configured to generate first, second and third jets directly impinging upon a spray nexus point to generate a substantially planar resultant spray pattern, said 3-jet fluidic circuit having a selected floor geometry and selected taper features configured to create a first spray pattern comprising a first part of a substantially rectangular irrigation target area;
said irrigation nozzle being configured to generate a second spray pattern which, together with said first spray pattern, comprise a substantially rectangular spray covering said substantially rectangular irrigation target area.

2. The irrigation nozzle of claim 1 , further comprising a second fluidic circuit receiving port;
wherein, depending on the throw desired, said 3-jet circuit can be combined with a second fluidic circuit configured to generate a “flat fan” spray pattern when affixed within said port to provide said second spray pattern having a range of desired aspect ratios comprising a second part of said rectangular spray covering said substantially rectangular irrigation target area.

3. The irrigation nozzle of claim 1 , further comprising:
a housing including an interior lumen and an exterior sidewall, with at least one 3-jet fluidic-circuit-receiving port defining a fluid passage between said lumen and said sidewall;
said 3-jet circuit being configured to receive fluid passing into said housing lumen and, in cooperation with said port, pass said fluid beyond said sidewall, projecting said fluid in a desired spray pattern;
wherein said 3-jet fluidic insert has a proximal intake that is in fluid communication with said housing's interior lumen and a distal outlet that is positioned and configured to project said desired spray pattern outwardly and away from said housing's exterior sidewall, and
said irrigation nozzle further including a retention member configured to fit over said housing's exterior sidewall to engage said fluidic insert and retain said fluidic insert in-situ.

4. The irrigation nozzle of claim 1 , wherein said 3-jet fluidic circuit is configured as an insert received in a first port oriented to aim said first spray pattern;
wherein said irrigation nozzle further comprises a second port oriented to receive and aim a second fluidic circuit configured to generate a “flat fan” spray pattern to generate said second spray having a range of desired aspect ratios, wherein said first spray, when combined with said second spray comprise said rectangular spray covering said substantially rectangular irrigation target area.

5. The irrigation nozzle of claim 4 , wherein said irrigation nozzle is configured for use in a pop-up nozzle assembly.

6. The irrigation nozzle of claim 5 , further comprising:
a pop-up irrigation nozzle assembly housing including an interior lumen and an exterior sidewall with said first 3-jet fluidic-circuit-receiving port defining a fluid passage between said lumen and said sidewall;
said first 3-jet circuit being configured to receive fluid passing into said housing lumen and, in cooperation with said port, pass said fluid beyond said sidewall, projecting said fluid in said first spray pattern;
wherein said first 3-jet fluidic insert has a proximal intake that is in fluid communication with said housing's interior lumen and a distal outlet that is positioned and configured to project said first spray pattern outwardly and away from said housing's exterior sidewall, and
said irrigation nozzle further including a retention member configured to fit over said housing's exterior sidewall to engage said first fluidic insert and retain said fluidic insert in-situ.

7. The irrigation nozzle of claim 6 , wherein said irrigation nozzle's second fluidic circuit has a proximal intake that is in fluid communication with said housing's interior lumen and a distal outlet that is positioned and configured to project said second spray pattern outwardly and away from said housing's exterior sidewall, and
said irrigation nozzle's retention member is configured to fit over said housing's exterior sidewall to engage said second fluidic insert and retain said second fluidic insert in-situ.

8. The irrigation nozzle of claim 6 , wherein said irrigation nozzle's first and second sprays combine with almost no overlap to irrigate said substantially rectangular irrigation target area with very little wasted irrigation fluid from overspray outside the rectangular irrigation target area.

Assignees

• Zhao Chunling
• Gopalan Shridhar
• Dlhbowles Inc

Inventors

• Zhao Chunling
• Gopalan Shridhar

Classifications

• B05B1/08 Primary

  of pulsating nature, e.g. delivering liquid in successive separate quantities · CPC title

• B05B3/02

  with rotating elements (electric spraying discharge apparatus characterised by having rotary outlet or deflecting elements B05B5/04) · CPC title

• Y10T137/6851

  With casing, support, protector or static constructional installations · CPC title