Patents by Inventor Robert J. Dunk

Robert J. Dunk 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).

  • Pallet and method of production
    Patent number: 4562718
    Abstract: A sheet metal workpiece is formed to have a plurality of relatively large diameter but relatively shallow cup-like depressions in a first draw operation, to have the shapes of the cup-like depressions changed in a subsequent draw operation and to form the base of the central cup-like depression into a secondary cup-like depression in a further draw operation.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: January 7, 1986
    Assignee: Precision Tool & Gauge Pty. Ltd.
    Inventor: Robert J. Dunk