Patents by Inventor Wayne Rootsaert

Wayne Rootsaert 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).

  • Mitigation of booster-induced effects
    Patent number: 11241923
    Abstract: An improved articulated heavy haul trailer combination comprises a trailing accessory vehicle such as a booster coupled to a main trailer by a coupling. The coupling includes a horizontal hinge, a vertical hinge that allows the trailing accessory vehicle to yaw in a horizontal plane, a spreader extending between the hinges and a hydraulic piston and cylinder. A turn sensor mounted on said combination detects yawing, and a controller reduces the piston and cylinder's downward biasing force on the coupling.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: February 8, 2022
    Assignee: Aspen Custom Trailers Inc.
    Inventors: Phil Johnston, Wayne Rootsaert
  • MITIGATION OF BOOSTER-INDUCED EFFECTS
    Publication number: 20200282781
    Abstract: An improved articulated heavy haul trailer combination comprises a trailing accessory vehicle such as a booster coupled to a main trailer by a coupling. The coupling includes a horizontal hinge, a vertical hinge that allows the trailing accessory vehicle to yaw in a horizontal plane, a spreader extending between the hinges and a hydraulic piston and cylinder. A turn sensor mounted on said combination detects yawing, and a controller reduces the piston and cylinder's downward biasing force on the coupling.
    Type: Application
    Filed: February 19, 2020
    Publication date: September 10, 2020
    Inventors: Phil Johnston, Wayne Rootsaert
  • AUTOMATED SUSPENSION SYSTEM
    Publication number: 20100038868
    Abstract: A suspension system for towed vehicles automatically adjusts for different payloads and road conditions without the need for manual shims used in prior art suspensions. automatically adjusts a mechanical bias on the vehicle to keep the suspension within a preferred ride height range. A hydraulic cylinder between the frames of the towing and the towed vehicles provides a mechanical biasing force to the towed vehicle. A sensor measures the ride height and causes the hydraulic cylinder to retract or extend according to the bias needed to maintain the suspension in the preferred ride height range.
    Type: Application
    Filed: July 25, 2008
    Publication date: February 18, 2010
    Inventors: John Zork, Wayne Rootsaert, Norman Woodward
  • Automated suspension system
    Patent number: 7661681
    Abstract: A suspension system for towed vehicles automatically adjusts for different payloads and road conditions without the need for manual shims used in prior art suspensions. automatically adjusts a mechanical bias on the vehicle to keep the suspension within a preferred ride height range. A hydraulic cylinder between the frames of the towing and the towed vehicles provides a mechanical biasing force to the towed vehicle. A sensor measures the ride height and causes the hydraulic cylinder to retract or extend according to the bias needed to maintain the suspension in the preferred ride height range.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: February 16, 2010
    Assignee: Aspen Custom Trailers
    Inventors: John Zork, Wayne Rootsaert, Norman Woodward