Patents by Inventor Michael K. SULLIVAN

Michael K. SULLIVAN 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).

  • Magnetic retrieval apparatus
    Patent number: 10208553
    Abstract: A downhole retrieval tool includes a mandrel; an inner sleeve disposed around the mandrel; a plurality of magnets coupled to the inner sleeve; and an outer sleeve disposed around the plurality of magnets, wherein the inner sleeve and the plurality of magnets are rotatable relative to the mandrel. In another aspect, an assembly tool for handling a magnet includes an anchor; a conveyance movable relative to the anchor; and a magnet holder coupled to the conveyance, wherein the magnet holder includes an arm for retaining the magnet.
    Type: Grant
    Filed: November 4, 2014
    Date of Patent: February 19, 2019
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Michael K. Sullivan, Arthur Warren Meeks
  • MAGNETIC RETRIEVAL APPARATUS
    Publication number: 20150122480
    Abstract: A downhole retrieval tool includes a mandrel; an inner sleeve disposed around the mandrel; a plurality of magnets coupled to the inner sleeve; and an outer sleeve disposed around the plurality of magnets, wherein the inner sleeve and the plurality of magnets are rotatable relative to the mandrel. In another aspect, an assembly tool for handling a magnet includes an anchor; a conveyance movable relative to the anchor; and a magnet holder coupled to the conveyance, wherein the magnet holder includes an arm for retaining the magnet.
    Type: Application
    Filed: November 4, 2014
    Publication date: May 7, 2015
    Inventors: Michael K. SULLIVAN, Arthur Warren MEEKS