Patents by Inventor Karl-Heinz Dünwald

Karl-Heinz Dünwald 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: 6237742
    Abstract: A conveyor defining a horizontal transport surface receives elongated workpieces in crossed-over and nonparallel orientation at an input side of the surface and moves them in a horizontal transport direction to an output side of the surface. A workpiece-aligning apparatus has a guide extending generally parallel to the workpieces along the surface, a carriage displaceable along the guide parallel to the workpieces, and a pushdown element vertically displaceable on the carriage between a lower position engaging and pushing down the workpieces and an upper position above the workpieces. A drive displaces the carriage along the guide with the element in the lower position and thereby presses the workpieces down against the transport surface and moves the workpieces into generally parallel alignment with one another.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: May 29, 2001
    Assignee: RSA Entgrat-U. Trenn-System GmbH & Co.
    Inventors: Karl-Heinz Dünwald, Rainer Schmidt