Patents by Inventor John Slonaker

John Slonaker has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Steering centering/damping mechanism for heavy-duty vehicles
    Patent number: 12691938
    Abstract: A steering centering/damping mechanism for a steerable axle/suspension system of a heavy-duty vehicle, the steering centering/damping mechanism comprising a mechanically-operated structure including a torsion spring. The mechanically-operated structure interconnects a tie rod and a steering knuckle of the steerable axle/suspension system and provides increasing positive steering centering force with increasing steer angle of the steerable axle/suspension system.
    Type: Grant
    Filed: August 29, 2025
    Date of Patent: July 28, 2026
    Assignee: Hendrickson USA, L.L.C.
    Inventors: Andrew L. Bradley, Scott Kohler, Ken Mutzner, Michael Andrew Power, Michael Sheridan, John Slonaker, Andrew J. Westnedge
  • STEERING CENTERING/DAMPING MECHANISM FOR HEAVY-DUTY VEHICLES
    Publication number: 20260062052
    Abstract: A steering centering/damping mechanism for a steerable axle/suspension system of a heavy-duty vehicle, the steering centering/damping mechanism comprising a mechanically-operated structure including a torsion spring. The mechanically-operated structure interconnects a tie rod and a steering knuckle of the steerable axle/suspension system and provides increasing positive steering centering force with increasing steer angle of the steerable axle/suspension system.
    Type: Application
    Filed: August 29, 2025
    Publication date: March 5, 2026
    Inventors: Andrew L. Bradley, Scott Kohler, Ken Mutzner, Michael Andrew Power, Michael Sheridan, John Slonaker, Andrew J. Westnedge