Patents by Inventor Robert D. Zuelke

Robert D. Zuelke 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: 4626099
    Abstract: A microimage recording apparatus of the type utilizing an elongated master film strip movable along a master film processing path and a duplicate film strip movable along a duplicate film strip processing path for making duplicates of successive developed image areas on the master film strip includes a duplication station having a support for the master film strip to position a developed image area thereon in a duplication position along the master film strip path. Support is provided for the duplicate film strip along a segment of the duplicate film processing path merging with the master film strip path at the duplication station. The master and duplicate film strips are biased together in close contact at the duplication station against a glass platen and light is passed through a developed image area on the master film strip to create a latent, duplicate image area on the duplicate film strip for subsequent development.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: December 2, 1986
    Assignee: Bell & Howell Company
    Inventors: Robert D. Zuelke, Paul H. Friedrich, David G. Stites