Patents by Inventor Hird Derek Colin

Hird Derek Colin 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).

  • Friction Bolt Assembly
    Publication number: 20110311315
    Abstract: A friction bolt assembly (1) comprises a friction bolt (2) with a pre-formed elongate column (3) of flexible, solid material retained within, and extending along a cavity (4) defined by the body (5) of the friction bolt (2). The body (5) of the friction bolt (2) is generally cylindrical and has a split (6) extending along its length.
    Type: Application
    Filed: August 20, 2008
    Publication date: December 22, 2011
    Applicant: DIWIDAG-SYSTEMS INTERNATIONAL PTY LIMITED
    Inventors: David W. Evans, Hird Derek Colin, Boychuk Andrew Simon