Patents by Inventor Tommie J. Grahm, JR.

Tommie J. Grahm, JR. 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).

  • Liner Hanger Running Tool and Method
    Publication number: 20110036594
    Abstract: A liner hanger running tool (10) and method are provided for positioning a liner in a well bore. A tool mandrel (24) is supported from a running string, and a housing (44) surrounds the tool mandrel. A flow annulus between the mandrel and the housing allows fluid to pass upward through the running tool to a position above the liner. A hydraulic release mechanism (78, 79) is activated by fluid pressure within the mandrel to axially move a piston (50) positioned radially outward of the mandrel to release the running tool from the liner.
    Type: Application
    Filed: August 17, 2009
    Publication date: February 17, 2011
    Inventors: John M. Yokley, Pat M. White, Tommie J. Grahm, JR.