Patents by Inventor Norman F. Bradley

Norman F. Bradley 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).

  • Mantle with replaceable wear plates
    Patent number: 4886218
    Abstract: A mantle for use with a rock crushing apparatus comprising an essentially tubular mantle body having side walls defining an exterior surface and a hollow interior being adapted to fit over the main shaft of a rock crushing apparatus. Wear plates for attachment to the exterior of the mantle body are provided, an adhesive filling material being used between the mantle body and the wear plates. A system of locking bolts are used to removably locate the wear plates to the outer surface of the mantle body.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: December 12, 1989
    Assignee: CAE Machinery Ltd.
    Inventors: Norman F. Bradley, Craig H. Chamberlain