Patents by Inventor Rudolf Tschannen

Rudolf Tschannen 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: 5444513
    Abstract: A photographic processing apparatus which allows the throughput time of a client order to be optimized. The processing apparatus includes a modular design and comprises various processing modules to process exposed photographic film material and/or photographic copy material. The individual processing modules each include one or several processing stations, through which the exposed film material and/or photographic copy material passes in succession, according to demand. The inventive operating process for the photographic processing apparatus is characterized in particular in that the control of the throughput speed and processing speed of the film material and/or the copy material is hierarchically designed and comprises two levels.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: August 22, 1995
    Assignee: Gretag Imaging AG
    Inventors: Willi Staheli, Rudolf Tschannen