Patents by Inventor Hans Burghardt

Hans Burghardt 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).

  • Arrangement for feeding of a fine-particle material to electrostatic free-fall cutter
    Patent number: 4569432
    Abstract: An arrangement for feeding a fine-particle material to be separated to an electrostatic free-fall cutter is formed as a funnel with braking inserts and inclined walls whose edges limit a small elongated rectangular discharge slot, wherein a greater wall is inclined to an opposite vertical wall which has an inclined downwardly directed guiding member, and a wedge-shaped projection with an upper horizontal surface is located at the lower edge of the inclined wall and extends into the discharge slot.
    Type: Grant
    Filed: July 26, 1983
    Date of Patent: February 11, 1986
    Assignee: Kali und Salz AG
    Inventors: Helmut Zentgraf, Gunter Fricke, Iring Geisler, Heinrich Balzer, Hans Burghardt, Fritz Maikranz