Patents by Inventor David A. Iwaniuk

David A. Iwaniuk 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: 5167603
    Abstract: Apparatus for progressive blind broaching workpieces includes a machine having a table mounted for rotation about a central axis, and a ram reciprocable toward and away from the table. Work holders on the table mount the workpieces in circumferentially spaced relation around the central axis of rotation of the table. Broaching tools are mounted on a pallet which is releasably secured to the ram in proper position for broaching. A pallet load stand is positioned at one side of the machine and a pallet unload stand is positioned at the opposite side of the machine. The ram is operated by a single power cylinder.
    Type: Grant
    Filed: January 6, 1992
    Date of Patent: December 1, 1992
    Assignee: National Broach & Machine Company
    Inventors: David A. Iwaniuk, Carol L. King