Patents Assigned to Tesco Hi-Lift, Inc.
  • Booster arm for high-lift mechanism
    Patent number: 5222717
    Abstract: A booster link arm positioning device for position or from a top to bottom position. The link arm is maintained by spring tension in the proper positions by the use of two torsion springs during first and second stage operations. In the second stage the link arm is disengaged from the hydraulic cylinder rollers and is maintained in a vertical position by a blocking bar. Upon lowering the upper frame to its bottom position, the link arm and yoke will re-engage with the hydraulic cylinder rollers at the proper location.
    Type: Grant
    Filed: February 21, 1992
    Date of Patent: June 29, 1993
    Assignee: Tesco Hi-Lift, Inc.
    Inventor: Charles Traficant