Patents by Inventor Ian Thomas Blakley

Ian Thomas Blakley 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).

  • Yielding head for mine support
    Patent number: 5791823
    Abstract: A yielding head for reducing the need to recondition a rock mass. The yielding head includes a mine hole cradle and a longitudinally movable bar therein. The bar, which is connected to an extension bolt, is registered with a collapsible bubble serrated yielding element circumscribing the bar. As the rock mass is displaced the bar is drawn into the mine hole. The yielding element absorbs the stress on the bar in a controlled manner.
    Type: Grant
    Filed: December 6, 1996
    Date of Patent: August 11, 1998
    Assignee: Inco Limited
    Inventors: Ian Thomas Blakley, John Frederick Dyke, Allen Meston, Robert William Smith, David Gordon Nicholls, Helena Miu-Kwan Tsoi