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Sprinkler with removable valve seat

  • US 5,871,156 A
  • Filed: 05/02/1997
  • Issued: 02/16/1999
  • Est. Priority Date: 05/02/1997
  • Status: Expired due to Term
First Claim
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1. In an irrigation sprinkler having a hollow sprinkler case with a sprinkler member removably mounted therein, an inlet fitting on the sprinkler case for connection to a water supply line, and an inlet control valve removably mounted within said sprinkler case for controlling water inflow through said inlet fitting into said case, the improvement comprising:

  • a seat ring removably mounted on said sprinkler case generally at said inlet fitting and defining a valve seat for engagement by said inlet control valve to control water inflow through said inlet fitting into said case;

    said seat ring being accessible through said case upon removal of said sprinkler member and said inlet control valve from said case to permit removal and selective replacement of said seat ring without requiring disassembly of said case from the water supply line.

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