Patents by Inventor Rollin Saul

Rollin Saul 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).

  • Tandem axle trailer suspension system
    Patent number: 12227045
    Abstract: A trailer including a trailer frame, and a trailer suspension including a first and second suspension assemblies and a pair of axles. Each of the first and second suspension assemblies includes a first spring including first and second spring ends, and a second spring including third and fourth spring ends. The second spring end of the first spring is positioned adjacent to the third spring end of the second spring, and the second and third spring ends are disposed between the first and fourth spring ends. The second spring end is rotatable about a first rotational axis that is fixed relative to the trailer frame. The third spring end is rotatable about a second rotational axis that is fixed relative to the trailer frame. The first spring end and the fourth spring end of the second spring are movable relative to the trailer frame.
    Type: Grant
    Filed: July 5, 2023
    Date of Patent: February 18, 2025
    Assignee: Aulfab, LLC
    Inventors: Jonathan R. Saul, Rollin Saul
  • TANDEM AXLE TRAILER SUSPENSION SYSTEM
    Publication number: 20250010676
    Abstract: A trailer including a trailer frame, and a trailer suspension including a first and second suspension assemblies and a pair of axles. Each of the first and second suspension assemblies includes a first spring including first and second spring ends, and a second spring including third and fourth spring ends. The second spring end of the first spring is positioned adjacent to the third spring end of the second spring, and the second and third spring ends are disposed between the first and fourth spring ends. The second spring end is rotatable about a first rotational axis that is fixed relative to the trailer frame. The third spring end is rotatable about a second rotational axis that is fixed relative to the trailer frame. The first spring end and the fourth spring end of the second spring are movable relative to the trailer frame.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 9, 2025
    Inventors: Jonathan R. Saul, Rollin Saul