Patents by Inventor Stephen Gessner

Stephen Gessner 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).

  • Inverted direct drive feed system
    Patent number: 11603717
    Abstract: An exemplary derrick assembly includes a frame, a hydraulic cylinder assembly, a drive assembly, and a hydraulic assembly. The hydraulic cylinder assembly is mounted to the frame, and includes a piston rod, a single-tube cylinder body, and a hydraulic chamber. The piston rod is secured to the frame, and the cylinder body is mounted to the piston rod for reciprocal movement between proximal and distal positions. The hydraulic chamber is defined in part by the piston rod and the cylinder body, and expands and contracts with movement of the cylinder body. The drive assembly is mounted to the cylinder body for movement with the cylinder body. The hydraulic assembly configured to charge hydraulic fluid into and out of the hydraulic chamber to cause the hydraulic chamber to expand and contract, thereby moving the cylinder body and the drive assembly between the proximal position and the distal position.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: March 14, 2023
    Assignee: Laibe Corporation
    Inventors: Stephen Gessner, Calvin Moore
  • INVERTED DIRECT DRIVE FEED SYSTEM
    Publication number: 20210025250
    Abstract: An exemplary derrick assembly includes a frame, a hydraulic cylinder assembly, a drive assembly, and a hydraulic assembly. The hydraulic cylinder assembly is mounted to the frame, and includes a piston rod, a single-tube cylinder body, and a hydraulic chamber. The piston rod is secured to the frame, and the cylinder body is mounted to the piston rod for reciprocal movement between proximal and distal positions. The hydraulic chamber is defined in part by the piston rod and the cylinder body, and expands and contracts with movement of the cylinder body. The drive assembly is mounted to the cylinder body for movement with the cylinder body. The hydraulic assembly configured to charge hydraulic fluid into and out of the hydraulic chamber to cause the hydraulic chamber to expand and contract, thereby moving the cylinder body and the drive assembly between the proximal position and the distal position.
    Type: Application
    Filed: July 24, 2020
    Publication date: January 28, 2021
    Inventors: Stephen Gessner, Calvin Moore