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Rotary driven sprinkler with multiple nozzle ring

  • US 7,044,403 B2
  • Filed: 12/31/2002
  • Issued: 05/16/2006
  • Est. Priority Date: 12/11/1998
  • Status: Expired due to Term
First Claim
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1. A nozzle unit for installation in a sprinkler comprising:

  • a base member extending arcuately and vertically in the nozzle unit;

    a nozzle having a flow passage through which water exits the sprinkler,wherein the nozzle projects from the base with a longitudinal axis of the flow passage at an angle in a vertical plane which defines an elevation angle for water flow exiting the sprinkler; and

    a flexible diaphragm area which forms a junction between the nozzle and base member whereby the elevation angle for the nozzle can be changed by flexing the diaphragm.

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