Patents by Inventor Christopher Leigh JOHNSON

Christopher Leigh JOHNSON 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).

  • Excavator
    Patent number: 12084828
    Abstract: An excavator for use on slopes having an incline above 30 degrees, the excavator comprising an undercarriage, a propulsion system and a house rotatably mounted to the undercarriage, wherein a rigid member extends upwardly from the undercarriage, through the house and around which the house rotates, the rigid member supports a cradle to which an engine power pack is mounted within the house, the cradle allowing the engine power pack to tilt within the cradle so that it stays generally horizontal as the excavator travels over a slope.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: September 10, 2024
    Assignee: Jayben-Russell Pty Ltd
    Inventor: Christopher Leigh Johnson
  • EXCAVATOR
    Publication number: 20220081870
    Abstract: An excavator for use on slopes having an incline above 30 degrees, the excavator comprising an undercarriage, a propulsion system and a house rotatably mounted to the undercarriage, wherein a rigid member extends upwardly from the undercarriage, through the house and around which the house rotates, the rigid member supports a cradle to which an engine power pack is mounted within the house, the cradle allowing the engine power pack to tilt within the cradle so that it stays generally horizontal as the excavator travels over a slope.
    Type: Application
    Filed: January 8, 2020
    Publication date: March 17, 2022
    Inventor: Christopher Leigh JOHNSON