Patents by Inventor Robert W. Hollinger

Robert W. Hollinger 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).

  • System And Method For Subgrade Stabilization Of Railroad Bed
    Publication number: 20210372055
    Abstract: The invention is a system and method for repairing, improving, and stabilizing subgrade and subsoil/natural ground layers of a rail bed generally consisting of softer soils. One embodiment includes a method of installing subsurface inclusions and ballast fills comprising injected slurry mixtures of stabilizing material such as cement grout mixed with in situ soil. Another embodiment includes a system of installed ground inclusions and ballast fills. Another embodiment includes an integrated system of equipment for emplacing the system of inclusions and ballast fills.
    Type: Application
    Filed: August 16, 2021
    Publication date: December 2, 2021
    Inventors: Tomasz Szynakiewicz, Justin Anderson, Robert W. Hollinger
  • System and method for sub-grade stabilization of railroad bed
    Patent number: 11118315
    Abstract: The invention is a system and method for repairing, improving, and stabilizing subgrade and subsoil/natural ground layers of a rail bed generally consisting of softer soils. One embodiment includes a method of installing subsurface inclusions and ballast fills comprising injected slurry mixtures of stabilizing material such as cement grout mixed with in situ soil. Another embodiment includes a system of installed ground inclusions and ballast fills. Another embodiment includes an integrated system of equipment for emplacing the system of inclusions and ballast fills.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: September 14, 2021
    Assignee: R&B LEASING, LLC
    Inventors: Tomasz Szynakiewicz, Justin Anderson, Robert W. Hollinger