Patents by Inventor Martin Charles Simpson

Martin Charles Simpson 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).

  • Patent number: 9951499
    Abstract: A wear part for earthmoving and mining equipment, the wear part having a mounting portion for engaging with a mount such as a nose mount or adaptor, a cheek plate, a boot, a cable hitch or the like provided on or by a bucket, the wear part having a cavity in the mounting portion defined at least in part by an outer wall having an inner face and an outer face, at least one passage formed through said outer wall and opening at one end to the inner face of said outer wall and at the other end to the outer face, and a retainer in said at least one passage and adapted to be selectively engaged with the mount to which the wear part is to be mounted, said outer wall including stop means engaged by said retainer and arranged to stop said retainer escaping from said at least on passage via the outer face end of said passage.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: April 24, 2018
    Assignee: SIMCO MINING PRODUCTS & SERVICES PTY LTD
    Inventors: Martin Charles Simpson, Oswald Dannhauser Zaayman
  • Patent number: 9677252
    Abstract: A tooth for earthmoving and mining equipment, including a cutting tip; and a mounting portion rearward of the cutting tip, the mounting portion having ‘a cavity therein opening to the rear and including a cone portion extending forward from the rear opening and terminating in a beak portion. The cone portion being defined at least in part by spaced apart upper and lower faces and opposed spaced apart side faces, the upper and lower faces being joined to the side faces by curved corner faces and the opposed upper and lower faces converging towards each other and the opposed side faces converging towards each other away from the rear opening so that the curved corner faces diminish away from the rear opening.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: June 13, 2017
    Assignee: SIMCO MINING PRODUCTS & SERVICE PTY LTD
    Inventors: Martin Charles Simpson, Oswald Dannhauser Zaayman
  • Publication number: 20150007464
    Abstract: A wear part for earthmoving and mining equipment, the wear part having a mounting portion for engaging with a mount such as a nose mount or adaptor, a cheek plate, a boot, a cable hitch or the like provided on or by a bucket, the wear part having a cavity in the mounting portion defined at least in part by an outer wall having an inner face and an outer face, at least one passage formed through said outer wall and opening at one end to the inner face of said outer wall and at the other end to the outer face, and a retainer in said at least one passage and adapted to be selectively engaged with the mount to which the wear part is to be mounted, said outer wall including stop means engaged by said retainer and arranged to stop said retainer escaping from said at least on passage via the outer face end of said passage.
    Type: Application
    Filed: December 19, 2012
    Publication date: January 8, 2015
    Inventors: Martin Charles Simpson, Oswald Dannhauser Zaayman
  • Publication number: 20140366409
    Abstract: A tooth for earthmoving and mining equipment, including a cutting tip; and a mounting portion rearward of the cutting tip, the mounting portion having ‘a cavity therein opening to the rear and including a cone portion extending forward from the rear opening and terminating in a beak portion. The cone portion being defined at least in part by spaced apart upper and lower faces and opposed spaced apart side faces, the upper and lower faces being joined to the side faces by curved corner faces and the opposed upper and lower faces converging towards each other and the opposed side faces converging towards each other away from the rear opening so that the curved comer faces diminish away from the rear opening.
    Type: Application
    Filed: December 19, 2012
    Publication date: December 18, 2014
    Inventors: Martin Charles Simpson, Oswald Dannhauser Zaayman
  • Patent number: 6871486
    Abstract: A chain link has a substantially centrally located juncture section with a first eye portion integrally connected to one end of the juncture section and a second eye portion integrally connected to the opposite end of the juncture section. The eye portions extend longitudinally outwardly from opposite ends of the juncture section and are disposed at a substantial angle relative to each other at opposite ends of the link. Such link may be connected to contiguous links to form a segment of a chain, with all of the links in a segment of chain thus produced having substantially the same orientation when the chain is held straight.
    Type: Grant
    Filed: December 23, 2003
    Date of Patent: March 29, 2005
    Assignee: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Stephen P. Doan, Richard John Stewart, David Garnet John Conroy, Martin Charles Simpson, James Anthony Russell, Peter Alan Lude
  • Publication number: 20040139719
    Abstract: A chain link has a substantially centrally located juncture section with a first eye portion integrally connected to one end of the juncture section and a second eye portion integrally connected to the opposite end of the juncture section. The eye portions extend longitudinally outwardly from opposite ends of the juncture section and are disposed at a substantial angle relative to each other at opposite ends of the link. Such link may be connected to contiguous links to form a segment of a chain, with all of the links in a segment of chain thus produced having substantially the same orientation when the chain is held straight.
    Type: Application
    Filed: December 23, 2003
    Publication date: July 22, 2004
    Applicant: Columbia Steel Casting Co., Inc.
    Inventors: Michael D. Moehnke, Stephen P. Doan, Richard John Stewart, David Garnet John Conroy, Martin Charles Simpson, James Anthony Russell, Peter Alan Lude
  • Patent number: D595561
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: July 7, 2009
    Assignee: CQM Pty. Ltd.
    Inventor: Martin Charles Simpson