Patents by Inventor John Oxenham

John Oxenham 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).

  • Assemblies for workpiece positioning
    Patent number: 4143571
    Abstract: A workpiece positioning assembly for a machine tool has first and second traverses mounted perpendicular to one another. The second traverse is unsupported at its ends and mounted intermediate its ends upon the first traverse for horizontal movement in a direction perpendicular to the axis of the second traverse. The second traverse has a carriage movable therealong for supporting a workpiece and effecting movement in a direction parallel to the axis of the second traverse. The workpiece positioning assembly is preferably applied to a punch press.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: March 13, 1979
    Assignee: Blackman Martin Group Limited
    Inventor: John Oxenham