Patents by Inventor Leo Acklin

Leo Acklin 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: 4490030
    Abstract: An apparatus for the liquid processing of light-sensitive material comprises a processing dish having a horizontal intermediate bottom and passage gaps, at the sheet entry end as well as at the sheet exit end, respectively, between the respective end wall of the dish and the adjacent edge of the intermediate bottom. The intermediate bottom is provided on its upper side with a screen of slender pins. The screen of pins together with a lid covering the dish delimit a passage gap for the sheets being conveyed through the passage gap in the apparatus by means of pairs of conveying and squeezing rollers in the direction indicated by an arrow T. In the dish end wall at the sheet exit end, a horizontal row of injection nozzles for the processing liquid is provided near the dish bottom. The dish end wall at the sheet entry end is provided with a horizontally extending ledge of nose-like cross section in order to deflect by 180.degree. the stream of liquid arriving from under the intermediate bottom.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: December 25, 1984
    Assignee: Ciba-Geigy AG
    Inventors: Leo Acklin, Marcel Rossier