Patents by Inventor Gregory Robert Baiden

Gregory Robert Baiden 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 for excavating a tunnel rock face by drilling a pattern of lifter and line holes
    Patent number: 6527345
    Abstract: A method for excavating a tunnel rock face by drilling a pattern of lifter holes and line holes. The line holes ensure the grade or slope of the excavation meets specification while reducing the need for cleaning out the face. A longitudinal band of lifter holes is drilled into the tunnel face at an acute angle in relation to the substantially perpendicular reference axis emerging from the tunnel face. A series of line holes, disposed opposedly adjacent to the lifter holes, are drilled at a smaller acute angle. The lifter holes are drilled deeper than the line holes and they do not intersect. Explosives are loaded into the lifter holes. The line holes are expendable and encourage fracturing of the rock.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: March 4, 2003
    Assignee: Inco Limited
    Inventors: Wayne N. Lidkea, Gregory Robert Baiden
  • Method of drilling
    Publication number: 20020167215
    Abstract: A method for excavating a tunnel rock face by drilling a pattern of lifter holes and line holes. The line holes ensure the grade or slope of the excavation meets specification while reducing the need for cleaning out the face. A longitudinal band of lifter holes is drilled into the tunnel face at an acute angle in relation to the substantially perpendicular reference axis emerging from the tunnel face. A series of line holes, disposed opposedly adjacent to the lifter holes, are drilled at a smaller acute angle. The lifter holes are drilled deeper than the line holes and they do not intersect. Explosives are loaded into the lifter holes. The line holes are expendable and encourage fracturing of the rock.
    Type: Application
    Filed: May 10, 2001
    Publication date: November 14, 2002
    Applicant: Inco Limited
    Inventors: Wayne N. Lidkea, Gregory Robert Baiden