Patents by Inventor Kenneth Douglas Kynoch

Kenneth Douglas Kynoch 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).

  • Rock anchor bolt
    Patent number: 5688077
    Abstract: A rock anchor bolt (18) comprising an elongated rod (10, 12, 14, 16, 18) which is provided over its outer surface with at least one (11), two (13), three, (17) or four (15) axially extending grooves. The rod (10, 12, 14, 16, 18), is preferably twisted over its length and provided over one of its ends (22) with screw threads (23) in order to receive a cooperating nut (25).
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: November 18, 1997
    Assignee: Cape Town Iron and Steel Works (PTY) Limited
    Inventor: Kenneth Douglas Kynoch