Patents by Inventor Michael Andrew McLean

Michael Andrew McLean 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).

  • Surface working device and attachable protector
    Patent number: 6799388
    Abstract: An end protector for a working element of a road grading machine or the like. The working element includes a body portion having a plurality of holes therein for holding picks that work a road surface. The end protector is held in place through the use of a vacant pick hole of the working element by a fastening element that extends through the hole.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: October 5, 2004
    Assignee: Sandvik AB
    Inventors: Steven Weaver, Michael Andrew McLean, Mark James Truebody
  • Surface working device and attachable protector
    Publication number: 20030123934
    Abstract: An end protector for a working element of a road grading machine or the like. The working element includes a body portion having a plurality of holes therein for holding picks that work a road surface. The end protector is held in place through the use of a vacant pick hole of the working element by a fastening element that extends through the hole.
    Type: Application
    Filed: October 28, 2002
    Publication date: July 3, 2003
    Inventors: Steven Weaver, Michael Andrew McLean, Mark James Truebody
  • Self drilling roof bolt
    Patent number: 6309159
    Abstract: An elongate roof bolt includes a bolt body having an axially extending central bore and defining a leading end. The leading end includes a pair of axially extending abutment elements formed by machining. Each abutment element includes an abutment face for engagement with a drill tip on opposite sides thereof, to transmit rotary forces during drilling. The drill tip extends across the leading end of the bolt body and is bonded to the abutment elements by welding, soldering or brazing. The bore opens out of said bolt bonded adjacent said leading end.
    Type: Grant
    Filed: October 30, 2000
    Date of Patent: October 30, 2001
    Assignee: Sandvik AB
    Inventors: Steven Lee Weaver, Michael Andrew McLean, Eric Ivan Johnson