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Electronic level measuring systems for truck trailers

  • US 4,658,508 A
  • Filed: 01/30/1986
  • Issued: 04/21/1987
  • Est. Priority Date: 01/30/1986
  • Status: Expired due to Term
First Claim
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1. An electronic level measuring device for use with a truck having a tractor and a trailer frame, said device comprising:

  • a remote lever sensor for attachment to the rear of the trailer frame, said sensor providing an output signal which is proportional to the angle at which the trailer frame is tilted laterally from the horizontal and which is of one polarity when the trailer frame is tilted to the left and is of opposite polarity when the trailer frame is tilted to the right;

    a source of electrical power connected to said sensor;

    a meter for mounting in the cab of the tractor which provides a continuous reading of the amount of the angle of tilt and the direction of tilt of the trailer frame is response to said output signal and provides a warning signal when the angle of tilt exceeds a predetermined amount;

    a first conduit having a first end connected to said level sensor;

    a junction box mountable at the front of the trailer frame, a second end of said first conduit being connected to said junction box;

    a meter box in which said meter is mounted;

    a second conduit having a first end connected to said meter box; and

    a quick disconnect connected to the second end of said second conduit for connecting said first and second conduits together at said junction box.

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