Patents by Inventor John Hamilton McGillis

John Hamilton McGillis 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).

  • Method of accurate trenchless installation of underground pipe
    Patent number: 6953306
    Abstract: A method for the trenchless installation of new underground pipe accurately on line and on grade by microtunneling to install a pilot tube, installing a drill string along the pilot pipe line using a directional drilling machine, installing a back reamer to the drill string and using a directional drilling machine to pull back the reamer and install a product pipe behind the reamer. A pilot tube is installed on line and on grade by utilizing the guidance system of a microtunneling apparatus to install a pilot tubes between jacking and target shafts. A drill string is installed to displace the pilot tubes and a back reamer is attached to the drill string with a product pipe attached to the reamer. The reamer may be pulled using any suitable pulling device such as a directional drilling machine.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: October 11, 2005
    Assignee: Insituform (Netherlands) B.V.
    Inventor: John Hamilton McGillis
  • Method of accurate trenchless installation of underground pipe
    Publication number: 20040184885
    Abstract: A method for the trenchless installation of new underground pipe accurately on line and on grade by microtunneling to install a pilot tube, installing a drill string along the pilot pipe line using a directional drilling machine, installing a back reamer to the drill string and using a directional drilling machine to pull back the reamer and install a product pipe behind the reamer. A pilot tube is installed on line and on grade by utilizing the guidance system of a microtunneling apparatus to install a pilot tubes between jacking and target shafts. A drill string is installed to displace the pilot tubes and a back reamer is attached to the drill string with a product pipe attached to the reamer. The reamer may be pulled using any suitable pulling device such as a directional drilling machine.
    Type: Application
    Filed: January 27, 2004
    Publication date: September 23, 2004
    Inventor: John Hamilton McGillis
  • Method of accurate trenchless installation of underground pipe
    Patent number: 6682264
    Abstract: A method for the trenchless installation of new underground pipe accurately on line and on grade by microtunneling to install a pilot tube, installing a drill string along the pilot pipe line using a directional drilling machine, installing a back reamer to the drill string and using a directional drilling machine to pull back the reamer and install a product pipe behind the reamer. A pilot tube is installed on line and on grade by utilizing the guidance system of a microtunneling apparatus to install a pilot tubes between jacking and target shafts. A drill string is installed to displace the pilot tubes and a back reamer is attached to the drill string with a product pipe attached to the reamer. The reamer may be pulled using any suitable pulling device such as a directional drilling machine.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: January 27, 2004
    Assignee: INA Acquisition Corp.
    Inventor: John Hamilton McGillis