Patents by Inventor Bruce A. Waddell

Bruce A. Waddell 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).

  • Mobile mining machine and method
    Patent number: 4548442
    Abstract: A first mobile mining machine for cutting mining tunnels in hard rock, which includes a horizontally swinging wheel-like cutterhead assembly mounted on a crawler and base frame assembly. The cutterhead assembly consists of a transverse horizontal axis wheel-like drum on which are multiple peripherally mounted rolling cutter units.A second mobile mining machine for cutting mining tunnels in hard rock, which includes a horizontally swinging and vertically ranging wheel-like cutterhead assembly mounted on a crawler and base frame assembly. The cutterhead assembly consists of a transverse horizontal axis wheel-like drum on which are multiple peripherally mounted rolling cutter units.
    Type: Grant
    Filed: December 6, 1983
    Date of Patent: October 22, 1985
    Assignee: The Robbins Company
    Inventors: David B. Sugden, Bruce A. Waddell, James P. Kindsvater, Robert B. Moffat
  • Roller cutter mounts
    Patent number: 4202418
    Abstract: Roller cutters are mounted onto a cutterhead from the rear side of the cutterhead. A load transfer block is insertable between a stator portion of each cutter and a generally forwardly directed load-carrying surface on the cutter-head frame. Loads imposed on the roller cutter during boring are transmitted rearwardly from the stator to the load transfer block, and from the load transfer block to the cutterhead frame.
    Type: Grant
    Filed: May 1, 1978
    Date of Patent: May 13, 1980
    Assignee: The Robbins Company
    Inventor: Bruce A. Waddell