Patents Assigned to Andreas Schmitzer
  • Patent number: 5713102
    Abstract: An apparatus for cleaning exposed film includes a dry cleaning unit including at least a first dry cleaning station comprising an ionization unit having an electrostatic discharge device and means for removing discharged dust particles from the film. A roller driven by a drive motor draws the film from an unwinding reel through the dry cleaning unit. A film take-up reel driven by a controlled drive motor is disposed downstream of the driven roller. The controlled drive motor is controlled so that a tensile force acting on the film remains uniform as a diameter of the film winding on the film take-up reel varies. A satisfactory cleaning of the film is thus achieved, even when cleaning old and heavily-soiled films, together with a reliable take-up of the cleaned film without a danger of film breakage in the film cleaning apparatus.
    Type: Grant
    Filed: May 2, 1996
    Date of Patent: February 3, 1998
    Assignee: Andreas Schmitzer
    Inventors: Andreas Schmitzer, Ingrid Manewald
  • Patent number: 5264897
    Abstract: A wet scanning gate for use in the production of enlargements from picture material in the form of individual photographic negative images or transparencies connected to form a contiguous strip hasa two-part housing defining a channel through which the contiguous strip is drawn.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: November 23, 1993
    Assignee: Andreas Schmitzer
    Inventor: Ingrid Manewald