Patents by Inventor Robert B. Charter

Robert B. Charter 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).

  • Underground roll over protection structure
    Patent number: 6427795
    Abstract: A roll over protection structure for a work machine includes an operator cab and a rotation mount connecting one face of the cab to the work machine. The rotation mount provides for rotation of the cab about an axis parallel to the work machine longitudinal axis. A deforming member connects a second face of the operator cab with the work machine and is characterized by elastic deformation responsive to normal operational shocks acting on said cab, and by controlled plastic deformation responsive to larger forces indicative of a machine roll over.
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: August 6, 2002
    Assignee: Caterpillar Elphinstone Pty. Ltd.
    Inventors: Allan R. Johnson, Robert B. Charter