Patents by Inventor Malcolm Roach

Malcolm Roach 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).

  • Equipment insert and method
    Patent number: 4600058
    Abstract: An equipment insert is shown for use within a section of well pipe. The equipment insert is installed within the pipe bore at the well surface. The equipment insert is run into the bore of the well pipe and manipulated with a hand tool to actuate gripping slips and a seal ring to grip the pipe interior bore and to form a seal with the interior bore of the section of well pipe. The section of well pipe containing the equipment insert can then be made up in the well pipe string, and the well pipe string can be run into the well bore for conducting well bore operations.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: July 15, 1986
    Assignee: Hughes Tool Company
    Inventors: Richard A. Van Wormer, John L. Baugh, Charles Ledet, Malcolm Roach