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Variable distance marker

  • US 5,532,677 A
  • Filed: 07/01/1994
  • Issued: 07/02/1996
  • Est. Priority Date: 07/01/1994
  • Status: Expired due to Fees
First Claim
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1. A variable, distance marker comprising:

  • a housing fixedly positioned on the ground adjacent a first of first and second spaced apart points;

    a visual display electrically actuable and including a plurality of variable digits designed to indicate a specific distance in a range of distances between the first and second points and an input for receiving signals to actuate the display and change the digits in accordance with changes in the specific distance due to changed in the second of the spaced apart points, the visual display being mounted in the housing and viewable externally;

    electronics circuits mounted in the housing and electrically connected to the visual display input for actuating the visual display to display selected digits indicative of a change in the specific distance between the first and second points as indicated by externally generated control signals;

    means mounted in the housing and electrically connected to the electronics circuits for receiving externally generated control signals indicative of a pre-measured change in the specific distance and supplying the received control signals to the electronics circuits; and

    means connected to the visual display and the electronics circuits for supplying power thereto.

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