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Raised depressible pavement marker

  • US 5,074,706 A
  • Filed: 09/07/1990
  • Issued: 12/24/1991
  • Est. Priority Date: 03/26/1987
  • Status: Expired due to Term
First Claim
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1. A self illuminating retractable pavement marker comprising:

  • a base receptacle adapted to be fixedly secured to the walls of a cavity formed within a pavement;

    a piston assembly including a light means, said piston assembly normally protruding above the base and the pavement surface and resiliently retractable downwardly into said base;

    a rechargeable battery means positioned in said base receptacle for illuminating said light means;

    a solar cell means openly positioned on said piston assembly for receiving light and for recharging said rechargeable battery; and

    sensing means for receiving external indications and illuminating said light means in response to said external indications, said sensing means includes a receiver switch, said receiver switch being responsive to receipt of a signal received from a remotely generated radio signal to illuminate said light means.

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