Patents by Inventor Matthew Clatworthy

Matthew Clatworthy 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).

  • Threaded pipe connections with improved leak tightness
    Patent number: 11965611
    Abstract: Provided is a threaded pipe having a pin member connecting to a box member. The pin member contains wedge-shaped pin threads that extends in a helical direction around the outside surface of its pipe end. The pin member is tapered to result in an increasing diameter of the pin threads away from the front end of its pipe. The box member contains a wedge-shaped box thread that stretches in a helical direction around the inside surface of its pipe end. The box member is tapered to result in a decreasing diameter of the box threads away from the front end of its pipe. The pin crest of the pin member increases in width along the pin thread and the box root of the box thread decreases in width along the box thread. When assembled together, the pin thread crest increases in width at a different rate than the box thread root increase in width.
    Type: Grant
    Filed: November 23, 2021
    Date of Patent: April 23, 2024
    Assignee: United States Steel Corporation
    Inventors: Alexander Barnett, Chandrashekar Garikapati, Frederick C. Bennett, Matthew Clatworthy, Keith A. Tuma
  • THREADED PIPE CONNECTIONS WITH IMPROVED LEAK TIGHTNESS
    Publication number: 20220163145
    Abstract: Provided is a threaded pipe having a pin member connecting to a box member. The pin member contains wedge-shaped pin threads that extends in a helical direction around the outside surface of its pipe end. The pin member is tapered to result in an increasing diameter of the pin threads away from the front end of its pipe. The box member contains a wedge-shaped box thread that stretches in a helical direction around the inside surface of its pipe end. The box member is tapered to result in a decreasing diameter of the box threads away from the front end of its pipe. The pin crest of the pin member increases in width along the pin thread and the box root of the box thread decreases in width along the box thread. When assembled together, the pin thread crest increases in width at a different rate than the box thread root increase in width.
    Type: Application
    Filed: November 23, 2021
    Publication date: May 26, 2022
    Applicant: United States Steel Corporation
    Inventors: Alexander Barnett, Chandrashekar Garikapati, Frederick C. Bennett, Matthew Clatworthy, Keith A. Tuma