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VEHICLE LOAD MEASURING APPARATUS

  • US 3,603,418 A
  • Filed: 10/17/1969
  • Issued: 09/07/1971
  • Est. Priority Date: 10/17/1969
  • Status: Expired due to Term
First Claim
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1. Load-measuring apparatus for use in a vehicle having at least two disconnectable sections with at least one of such sections including a load support, said apparatus comprising a deformable member which is operatively cOnnected to the load support on the one vehicle section and is constructed to deform in a manner related to the weight of a load on the support, a DC voltage transmitter operatively connected to and responsive to deformation in said member, said transmitter having input terminals adapted to be connected to a source of DC voltage, and output terminals, and being constructed, with a given DC voltage applied to said input terminals, to transmit to said output terminals a DC voltage having a value related to the amount of deformation in said member, electrical indicator means on the other section of said vehicle remote from said output terminals, and conductor means, including a disconnectable coupling operatively interconnecting said output terminals and said indicator means, permitting disconnection of said vehicle sections with the deformable member and transmitter remaining connected to the one vehicle section and the indicator means remaining on the other vehicle section, said indicator means including a input circuit supplied voltage by said conductor means, said input circuit having a sufficiently high input impedance whereby, under substantially all circumstances, with said coupling connected, the value of the voltage supplied said indicator means is substantially the same as the value of the voltage transmitted to said output terminals.

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