Patents by Inventor James Graham Campbell

James Graham Campbell 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).

  • PIPE BORING APPARATUS AND ASSOCIATED METHOD
    Publication number: 20160288217
    Abstract: A pipe boring apparatus for boring an end of a pipe. The pipe boring apparatus can include a driven rotating head and a pipe borer. The pipe borer can include a body that is connected to the rotating head, a floating section that is movable with respect to the body, a biasing member that is connected to the body and to the floating section, a follower for following an outer surface of a pipe, and a cutter for cutting the internal surface of the pipe. A space between the follower and the cutter may be fixed in use.
    Type: Application
    Filed: April 1, 2015
    Publication date: October 6, 2016
    Inventors: James Francis Darcy, James Graham Campbell
  • RIPPER SHOE FOR A PLOUGH VEHICLE
    Publication number: 20140299344
    Abstract: A ripper shoe for a plough vehicle, the ripper shoe comprising a nose portion connected to a series of teeth; a trailing portion located behind the nose portion; the trailing portion having an trailing upper section and a trailing lower section; and an attachment portion to at least attach the trailing portion to a sword of the plough vehicle; wherein the width of the upper section is greater than width of the lower section.
    Type: Application
    Filed: September 5, 2013
    Publication date: October 9, 2014
    Applicant: Murphy Pipe & Civil IP Pty Ltd
    Inventors: James Timothy O'Connor, James Francis Darcy, James Graham Campbell