Patents by Inventor Hans Zehentbauer

Hans Zehentbauer 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).

  • Photoelectric measuring head for the contactless scanning of measuring fields on a printing sheet with an air permeable annular disk
    Patent number: 5587796
    Abstract: A photoelectric measuring head for the contactless scanning of measurement regions, particularly of measurement fields on a printing sheet resting flat. The measuring head having outlet orifices for compressed air on its underside to generated an air cushion between the measuring head and the printing sheet. A measuring head of this kind, suspended on an air cushion provides for high stability, and the least possible distance from the base. This is achieved in that the outlet orifice for the compressed air are formed from a plate which, by virtue of a microporous structure, is air-permeable.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: December 24, 1996
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Peter Rakitsch, Hans Zehentbauer
  • Aerostatic bearing
    Patent number: 4735862
    Abstract: A gas bearing is formed of a bearing member of sintered material. Sintered grains of a layer forming a desired bearing surface are deformed into the shape of a honeycomb in non-cutting fashion and are subsequently finely worked in cutting fashion, so that super-fine pores formed at corners of the honeycomb arise and which form nozzles.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: April 5, 1988
    Assignee: Dr.-Ing. Rudolf Hell GmbH
    Inventors: Joachim Heinzl, Manfred Lehmann, Hans Zehentbauer