Patents by Inventor Brian Paul Brubaker

Brian Paul Brubaker 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).

  • Plug assemblies for a subterranean wellbore
    Patent number: 11002104
    Abstract: Plug assemblies for plugging a wellbore tubular and methods relating thereto are disclosed. In an embodiment, the plug assembly includes a central axis and a seal sub including a plurality of axially extending fingers and a tapered outer surface. In addition, the plug assembly includes a sealing element coupled to the axially extending fingers of the seal sub. Further, the plug assembly includes a slip sub including a tapered inner surface, and a plurality of axially extending fingers. The fingers of the slip sub each include one or more teeth. The seal sub is configured to be at least partially inserted within the slip sub so that the tapered outer surface engages with the tapered inner surface, and axial advance of the tapered inner surface within the tapered outer surface is to radially expand the fingers of the slip sub to engage with an inner surface of the tubular.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: May 11, 2021
    Assignee: National Oilwell Vareo, L.P.
    Inventors: John Chrysostom Wolf, Aju Abraham, Brian Paul Brubaker
  • PLUG ASSEMBLIES FOR A SUBTERRANEAN WELLBORE
    Publication number: 20190352998
    Abstract: Plug assemblies for plugging a wellbore tubular and methods relating thereto are disclosed. In an embodiment, the plug assembly includes a central axis and a seal sub including a plurality of axially extending fingers and a tapered outer surface. In addition, the plug assembly includes a sealing element coupled to the axially extending fingers of the seal sub. Further, the plug assembly includes a slip sub including a tapered inner surface, and a plurality of axially extending fingers. The fingers of the slip sub each include one or more teeth. The seal sub is configured to be at least partially inserted within the slip sub so that the tapered outer surface engages with the tapered inner surface, and axial advance of the tapered inner surface within the tapered outer surface is to radially expand the fingers of the slip sub to engage with an inner surface of the tubular.
    Type: Application
    Filed: March 6, 2019
    Publication date: November 21, 2019
    Applicant: National Oilwell Varco, L.P.
    Inventors: John Chrysostom Wolf, Aju Abraham, Brian Paul Brubaker