Patents by Inventor Jeffrey R. Fergusson

Jeffrey R. Fergusson 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).

  • Resin embedded rock bolt
    Patent number: 7037058
    Abstract: A resin embedded rock bolt dimensioned to be inserted into a hole drilled in a rock body with a clearance fit between the bolt and hole, the bolt having a shank which is plastically deformed by the application of an eccentric shear force to form a paddle protruding beyond the undeformed exterior of the shank prior to deformation, the paddle being shaped to mix the resin.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: May 2, 2006
    Assignee: Industrial Roll Formers Pty. Ltd.
    Inventor: Jeffrey R. Fergusson
  • Resin embedded rock bolt
    Publication number: 20030031525
    Abstract: A resin embedded rock bolt dimensioned to be inserted into a hole drilled in a rock body with a clearance fit between the bolt and hole, the bolt having a shank which is plastically deformed by the application of an eccentric shear force to form a paddle protruding beyond the undeformed exterior of the shank prior to deformation, the paddle being shaped to mix the resin.
    Type: Application
    Filed: July 23, 2002
    Publication date: February 13, 2003
    Inventor: Jeffrey R. Fergusson
  • Rock bolt and method of forming a rock bolt
    Patent number: 6447228
    Abstract: Improvements to a rock bolt and a method of forming a rock bolt are disclosed. The rock bolt includes at least one paddle section that is formed by applying an eccentric shear force to the shank of the bolt from opposite sides of the bolt. The paddle section is thereby comprising an eccentrically deformed portion of the shank of the bolt. The rock bolt is adapted for use in a hold sized to receive the bolt with a clearance fit. A resin mixture contained in the hold is cooperable with the paddle section of the rock bolt to secure the bolt within the hole.
    Type: Grant
    Filed: March 21, 2001
    Date of Patent: September 10, 2002
    Assignee: Industrial Roll Formers Pty Ltd.
    Inventor: Jeffrey R. Fergusson