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Portable hazard marker with sensing and communications systems

  • US 20070222640A1
  • Filed: 03/14/2006
  • Published: 09/27/2007
  • Est. Priority Date: 03/14/2006
  • Status: Abandoned Application
First Claim
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1. A portable communications unit comprising:

  • (a) a portable hazard marker forming a housing;

    (b) a wireless receiver/transmitter located within the housing;

    (c) control circuitry interfaced with the wireless receiver/transmitter; and

    (d) an electrical energy storage unit electrically connected to the wireless receiver/transmitter and the control circuitry.

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