Patents by Inventor Friedhelm Brenner

Friedhelm Brenner 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: 4525057
    Abstract: Guide apparatus is provided for guiding paper from an image toner station to a pair of pressing rolls of a fixing station of a photocopying machine. The pressing rolls are arranged at a slight angle to the transport direction of the paper. In order to provide for simultaneous introduction of the paper across its width to the pressing rolls, the guide apparatus is so configured that the paper has different travel lengths across its width on its travel path between the toner station and the nip of the pressing rolls.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: June 25, 1985
    Assignee: Develop Dr. Eisbein GmbH & Co.
    Inventors: Heinrich Kaufmann, Friedhelm Brenner
  • Patent number: 4443092
    Abstract: A compact, readily servicable, office photocopying machine is provided which has pivotally connected upper and lower housing parts. A paper cassette receiver for holding a stack of coated photosensitive copying paper sheets is located at the bottom of the lower housing part. The lower housing part also operably supports a charging station, an exposing station, a developing station, and a fixing station arranged above and within the vertical projection of the stack of sheets in the cassette receiver. A sheet separating station for separating individual sheets from the cassette and a paper reversing guide are provided for transferring individual sheets from the cassette to the charging station. The exit end of the paper reversing guide and the separating station are also arranged above and within the vertical projection of the stack of sheets in the cassette receiver. A slide block with a holder for an original to be copied and an optical system are operably supported at the upper housing part.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: April 17, 1984
    Assignee: Develop Dr. Eisbein GmbH & Co.
    Inventors: Juergen Eisbein, Heinrich Kaufmann, Kurt Moser, Friedhelm Brenner