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Sprinkler with top-side remotely vented pressure regulator

  • US 8,794,542 B1
  • Filed: 05/29/2009
  • Issued: 08/05/2014
  • Est. Priority Date: 05/29/2009
  • Status: Active Grant
First Claim
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1. An irrigation sprinkler, comprising:

  • a riser;

    a nozzle turret rotatably mounted at an upper end of the riser;

    a gear train reduction mounted in the riser;

    a turbine coupled to the gear train reduction and rotatable by water entering a lower end of the riser;

    a gear driven coupling mechanism mounted in the riser and coupling the gear train reduction and the nozzle turret; and

    a pressure regulator having a valve portion mounted in the riser adjacent a passage that provides a water flow path to the nozzle, the pressure regulator including a valve body movable relative to at least one water flow port to increasingly obstruct the at least one water flow port, a spring connected to bias the valve body to affect a pressure of the water at an entrance of a nozzle in the nozzle turret, and an air flow path separated from the water flow path that vents the valve portion of the pressure regulator to ambient air pressure;

    wherein the spring that biases the valve body is mounted in the nozzle turret.

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