Patents by Inventor Stephen C. Parrow

Stephen C. Parrow 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).

  • CUTTING TOOL ASSEMBLY FOR USE IN CONTROLLED FRACTURE MACHINING
    Publication number: 20250282076
    Abstract: A cutting tool assembly for use in controlled fracture machining includes a body having a rectilinear shape with a top end and bottom end and a tool holder attached to the bottom end of the body. A first cutting tool is configured at one lower end of the tool holder is to operate the tool in a forward direction of movement while a second cutting tool is configured at the opposite end of the tool holder to operate in a reverse direction of movement. The tool is shaped so an upper portion of the tool holder has a first diameter and the lower portion of the tool holder has a second diameter. The first diameter can smaller or larger than the second diameter depending on the size and type of workpiece and shape needed to produced.
    Type: Application
    Filed: March 8, 2024
    Publication date: September 11, 2025
    Inventors: William Q. Tingley, Daniel R. Bradley, Stephen C. Parrow
  • Cutting tool assembly for use in controlled fracture machining
    Patent number: 12409577
    Abstract: A cutting tool assembly for use in controlled fracture machining includes a body having a rectilinear shape with a top end and bottom end and a tool holder attached to the bottom end of the body. A first cutting tool is configured at one lower end of the tool holder is to operate the tool in a forward direction of movement while a second cutting tool is configured at the opposite end of the tool holder to operate in a reverse direction of movement. The tool is shaped so an upper portion of the tool holder has a first diameter and the lower portion of the tool holder has a second diameter. The first diameter can smaller or larger than the second diameter depending on the size and type of workpiece and shape needed to produced.
    Type: Grant
    Filed: March 8, 2024
    Date of Patent: September 9, 2025
    Assignee: Tennine Corp.
    Inventors: William Q Tingley, Daniel R. Bradley, Stephen C. Parrow