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Color-changing submersible lighting fixture with control circuit responsive to timed interruptions of the power source

  • US 7,128,440 B2
  • Filed: 08/18/2005
  • Issued: 10/31/2006
  • Est. Priority Date: 03/31/2000
  • Status: Expired due to Term
First Claim
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1. In a pool lighting system including a plurality of lighting fixtures each powered by a common alternating-current power source, each lighting fixture comprising:

  • color-changing light source;

    an electric transformer powering the color-changing light source for emitting a plurality of colors of light in a predetermined sequence;

    an interruptible source of alternating current, common to each of the plurality of lighting fixtures; and

    a control circuit, responsive to the interruptible source of alternating current for controlling the color-changing light source in response to an interruption in the source of alternating current, whereby the color-changing light source of each of the plurality of lighting fixtures are synchronized.

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