{
  "abstract": "An operator control device for a materials-handling vehicle includes an ergonomic handle rotatably mounted on a support structure secured to the vehicle in a fixed position. The ergonomic handle can include left and right handles. Each handle comprises an upper surface contoured to ergonomically support an operator's hand. Clockwise and counter-clockwise rotation of the control device produces a steering input used to steer the vehicle. A thumb-operated switch can be arranged on the right or left handle to control lift operations and a separate thumb-operated switch can be arranged on the opposite handle to control a speed of the vehicle. Each switch can be operated without requiring the operator to move his/her hand from an operating position. Dynamic stability is provided by enabling an operator to use the handle to provide a bracing force during operation of the vehicle.",
  "assignees": [
    "HYSTER YALE MAT HANDLING INC"
  ],
  "authors": [
    "CURRIN CHRISTOPHER PAUL",
    "DENDY TANNER REESE",
    "HOFFMAN MATTHEW KENNETH",
    "LANCASTER JUSTIN BRYANT"
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    "lifting-positioning-manipulation/lift-tables-and-positioners"
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    "name": "Creative Commons Attribution 4.0 International",
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  "published_at": "2026-09-15T19:08:17.378815Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-03-19",
  "source_id": "US-2026077986-A1",
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  "supersedes": null,
  "title": "Dynamically stable ergonomic control for man-up lift truck",
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