Patents by Inventor Hans-Joachim Heinemann

Hans-Joachim Heinemann 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).

  • Textile-fiber treating grooved roller and a wire with teeth having a foot portion indented for force-fitting the wire into the groove and method of making same
    Patent number: 5008979
    Abstract: A roller for the treatment of fiber masses for the textile industry has a sawtooth wire received in a rectangular cross section helical groove of a steel roll body and indented by a peening or indenting roller to provide, by plastic deformation of the foot portion, the outward forces which clamp the foot portion of the wire against the ribs flanking the groove of the roller body. As a consequence, the roller body as a whole is not deformed.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: April 23, 1991
    Assignee: Peter Wolters AG
    Inventors: Gangolf Palm, Karl-Heinz Lehmann, Hans-Joachim Heinemann