Patents by Inventor Heinz Geisenhof

Heinz Geisenhof 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: 4837945
    Abstract: A dryer having a drying chamber and an inlet housing structure wherein a heating device is located in the inlet housing structure. An outlet structure is provided with a main chamber and a secondary chamber wherein the flow of gas exiting the drying chamber is divided into a main flow of gas passing from the main chamber to the inlet housing structure and a secondary flow of gas passing from the secondary chamber past a condenser which is located in the secondary chamber to the inlet housing structure. Side chambers located in the housing have side walls which are formed from a perforated sheet of metal. The dryer will function in a recycled-air operation as well as a fresh-air operation.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: June 13, 1989
    Assignee: Hermann Waldner GmbH & Co.
    Inventors: Gunter Wulf, Heinz Geisenhof
  • Patent number: 4459763
    Abstract: A novel tray drying chamber having a tray-truck is provided, wherein moist material supported on the trays supported on the tray-truck are dried by the gas circulation method. The tray-truck and the drying chamber proper are constructed to form a functional unit, wherein the chamber-walls temperature controllable chamber walls and functionally cooperate with the external parts of the tray-truck to define gas-conducting passageways.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: July 17, 1984
    Assignee: Schering Aktiengesellschaft
    Inventors: Dietrich Meissner, Heinz Geisenhof