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Sprinkler status indicator

  • US 20070241891A1
  • Filed: 04/17/2006
  • Published: 10/18/2007
  • Est. Priority Date: 04/17/2006
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a valve that has a open and a closed state;

    a heat responsive element which in the absence of a predetermined amount of applied heat, retains the valve in the closed state; and

    a device, coupled to the elements which emits a wireless signal indicative of the valve'"'"'s changed state.

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