Patents by Inventor William H. Rupnik

William H. Rupnik 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).

  • Method and device for dual positioning of a workpiece in a turning machine
    Patent number: 4771521
    Abstract: A dual position chuck and turning machine method allow automatic shifting of a workpiece from a first to a second turning axis by actuation of a draw bar through the spindle of the turning machine. A linkage in the chuck drives a movable jaw assembly having peripheral fixed keys thereon in an arcuate keyway responsive to the draw bar movement. The arcuate keyway allows moving the workpiece to second axes which are not merely rotations of the jaw assembly.
    Type: Grant
    Filed: October 28, 1987
    Date of Patent: September 20, 1988
    Assignee: Parker Hannifin Corporation
    Inventors: Kenneth M. Smith, William H. Rupnik, Bryan L. Maxwell, Robert J. Kups