Patents by Inventor Michael F. D. Cadigan

Michael F. D. Cadigan 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).

  • Publication number: 20240133252
    Abstract: A casing lifting system includes a spreader bar, a first lifting cap, and a second lifting cap. The first lifting cap is configured to engage a first end of a first section of drilling casing, and the first lifting cap includes a first lifting lug. The second lifting cap is configured to engage a second end of the first section of drilling casing opposite the first end of the first section of drilling casing, and the second lifting cap includes a second lifting lug. In some embodiments, each of the first and second lifting caps are configured for coupling adjacent to opposing lateral ends of the spreader bar by respective first and second elastic stabilizers coupled between the first and second lifting lugs and first attachment points adjacent to the opposing lateral ends of the spreader bar.
    Type: Application
    Filed: October 22, 2023
    Publication date: April 25, 2024
    Inventors: Michael F. D. Cadigan, Paul Liberato