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Illuminating safety and notification device

  • US 10,180,244 B2
  • Filed: 01/28/2011
  • Issued: 01/15/2019
  • Est. Priority Date: 04/25/2002
  • Status: Active Grant
First Claim
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1. A safety device comprising:

  • a. a light source;

    b. an internal power source coupled to the light source;

    c. a controller coupled to the light source and the power source to control operation of the device; and

    d. a connection port that transmits and receives both power signals that provide power to the device and control signals that are utilized by the controller to control different modes of operation of the device, wherein the controller is programmed to separately power up and operate the safety device both independently and in response to the control signals from one or more other safety devices having other internal power sources;

    wherein when the connection port is coupled with the other safety devices, the controller is programmed to draw power first from the internal power source and then from the other internal power sources when the controller determines that none of the safety device and the other safety devices are receiving power from an external power source.

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