Patents by Inventor Hans W. Tack

Hans W. Tack 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).

  • Toolholder and method of releasably mounting
    Patent number: 4747735
    Abstract: The present invention relates to an improved toolholder for releasably mounting on a tool support member. The toolholder is provided with a forward end for receiving a tool and a shank extending from the forward end for being releasably received in a bore of a tool support member. The shank has a first section for interference fitting with the bore of the tool support member when a rearwardly facing face on the toolholder is in abutment with a forwardly facing surface on the tool support member. The shank has a second section, rearwardly of its first section, for expansible abutment with the bore of the tool support member.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: May 31, 1988
    Assignees: Kennametal Inc., Krupp Widia GmbH
    Inventors: Robert A. Erickson, Rainer von Haas, Norbert Reiter, Hans W. Tack, James W. Heaton