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Sprinkler assembly

  • US 8,746,591 B2
  • Filed: 12/18/2012
  • Issued: 06/10/2014
  • Est. Priority Date: 12/17/2004
  • Status: Active Grant
First Claim
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1. A sprinkler comprising:

  • a sprinkler body;

    a main valve located within said sprinkler body and having an open position that allows water to flow through said sprinkler body and having a closed position that prevents water from flowing through said sprinkler body;

    a communication passage connected to a chamber of said main valve;

    a check valve coupled to said communication passage;

    a pilot valve removably mounted to open said check valve and removable to close said check valve.

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