Patents by Inventor Longde GUO

Longde GUO 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).

  • Drilling device for reinforced concrete bored pile
    Patent number: 12392104
    Abstract: A drilling device for a reinforced concrete bored pile includes drilling masts, a scalable drill rod, a rotary drill bit, a rectangular cutter and scalable cutter rods. A top end of the scalable drill rod is connected to the drilling masts, the rotary drill bit is disposed on a bottom end of the scalable drill rod, the rectangular cutter is disposed above the rotary drill bit and defines a first drill rod hole, the scalable drill rod is disposed to pass therethrough. Bottom ends of the scalable cutter rods are connected to the rectangular cutter, and top ends of the scalable cutter rods are connected to a horizontal constraint platform, on which an impact component is provided. The horizontal constraint platform is disposed below the top end of the scalable drill rod, and the scalable drill rod passes through the horizontal constraint platform and the impact component.
    Type: Grant
    Filed: June 27, 2024
    Date of Patent: August 19, 2025
    Assignee: Shandong University
    Inventors: Lianxiang Li, Chuhan Wang, Shangru Zhang, Xiuxi Che, Yefan Qiu, Shilei Zhao, Longde Guo
  • DRILLING DEVICE FOR REINFORCED CONCRETE BORED PILE
    Publication number: 20250101700
    Abstract: A drilling device for a reinforced concrete bored pile includes drilling masts, a scalable drill rod, a rotary drill bit, a rectangular cutter and scalable cutter rods. A top end of the scalable drill rod is connected to the drilling masts, the rotary drill bit is disposed on a bottom end of the scalable drill rod, the rectangular cutter is disposed above the rotary drill bit and defines a first drill rod hole, the scalable drill rod is disposed to pass therethrough. Bottom ends of the scalable cutter rods are connected to the rectangular cutter, and top ends of the scalable cutter rods are connected to a horizontal constraint platform, on which an impact component is provided. The horizontal constraint platform is disposed below the top end of the scalable drill rod, and the scalable drill rod passes through the horizontal constraint platform and the impact component.
    Type: Application
    Filed: June 27, 2024
    Publication date: March 27, 2025
    Inventors: Lianxiang Li, Chuhan Wang, Shangru Zhang, Xiuxi Che, Yefan Qiu, Shilei Zhao, Longde GUO