Patents by Inventor Volker Jonatzke

Volker Jonatzke 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).

  • Connection between a metallic threaded fastener and a part of plastic material
    Patent number: 5885042
    Abstract: A connection between a metallic threaded fastener having a threaded portion and a part of plastic material having a bore, the threaded portion forming or tapping a counter thread into the wall of the bore, characterized in that for a predetermined number of threads, the entrance portion of the bore is provided with a circular shaped or arc shaped inclined cam surface which encircles the bore helically and which forms a step between the ends of the cam surface or the associated ends of adjacent cam surfaces, respectively.
    Type: Grant
    Filed: November 28, 1997
    Date of Patent: March 23, 1999
    Assignee: ITW-ATECO GmbH
    Inventor: Volker Jonatzke