Patents by Inventor Derek Oldfield

Derek Oldfield 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).

  • Patent number: 3970191
    Abstract: Transfer apparatus for a workpiece such as a metal slab, bloom or coil of metal strip comprises a carriage supported on a substantially horizontal beam. The beam is displaceable in the direction of its length and the ends of a flexible cable are connected to opposite ends of the carriage with a reach of the cable extending substantially parallel to the length of the beam. An intermediate point of the cable is firmly anchored so that displacement of the beam causes the carriage to be displaced along the beam as well as its movement with the beam. The beam can also be raised and lowered.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: July 20, 1976
    Assignee: Wean United, Inc.
    Inventors: Derek Oldfield, Dennis Postlethwaite