Reaches Patents (Class 280/140)
Swivel (Class 280/141)
Extensible (Class 280/142)
  • Trailer steering apparatus and method
    Patent number: 9370977
    Abstract: Apparatus and methods are provided to eliminate transient swaying of a towed vehicle imparted upon the towed vehicle during a towing operation by decoupling the towing and towed vehicles rotationally from each other. In one embodiment this is accomplished through the use of a doubly hinged tow bar and to steer the towed vehicle based upon the relative angular deflections of the two vehicles while subtracting out transient rotations of the towing vehicle.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: June 21, 2016
    Inventor: Daniel Virgil Sallis, Sr.
  • Combine header transport trailer
    Patent number: 8740249
    Abstract: A combine header transport trailer for transporting a combine header. The trailer includes mechanical jacks for raising and lowering the header bar thereon and for moving the header bar inwardly and outwardly with respect to the trailer.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 3, 2014
    Assignee: DUO Lift Manufacturing Co., Inc.
    Inventors: James A. Hellbusch, Patrick K. Sokol
  • Combine header transport trailer
    Patent number: 8714594
    Abstract: A combine header transport trailer for transporting a combine header. The trailer includes electrically operated jacks or screw actuators for raising and lowering the header bar thereon and for moving the header bar inwardly and outwardly with respect to the trailer.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: May 6, 2014
    Assignee: Duo Lift Manufacturing Co., Inc.
    Inventors: James A. Hellbusch, Patrick K. Sokol