Patents Assigned to Actronic Limited
  • Weight estimation for excavator payloads
    Patent number: 8271229
    Abstract: A method for estimating weight of a payload held by load lifting machine 1, wherein the load lifting machine comprises lifting linkage with a boom 5 pivotably connected to a machine chassis 2, the method comprising calculating an estimation using the torque of the boom 5, torque of the boom during calibration lifts for first and second payloads, and dynamic torque adjustment determined for first and second payloads.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: September 18, 2012
    Assignee: Actronic Limited
    Inventors: Hsin Pai Hsu, Jennifer Carol King, Paul John Corder
  • Weight calculation compensation
    Patent number: 8126619
    Abstract: A method and apparatus for determining weight of a payload lifted by a rig of a load lifting machine. The weight is determined from at least one parameter being or indicative of the force or pressure existing in or applied by the rig while the payload is lifted and a compensation for friction and/or other losses in the rig 14.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: February 28, 2012
    Assignee: Actronic Limited
    Inventors: Paul John Corder, David Warren Lee