Patents by Inventor Walter Tabel

Walter Tabel 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).

  • Photographic film unit of integral structure
    Patent number: 4264718
    Abstract: The invention relates to a photographic film unit with integral structure consisting of an image sheet and a cover sheet which is substantially in register with the image sheet and firmly attached to it, whereby the attachment between the sheets is produced by a combination of individual masking strips and lateral spacer strips and said combination of multi-part mask is composed of a masking folding sheet associated with the container for photographic developer material and another associated with the trap and a separate lateral masking strip for each side.
    Type: Grant
    Filed: August 3, 1979
    Date of Patent: April 28, 1981
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Hermann Luhrig, Guido Kovacic, Walter Tabel, Horst-Peter Muller
  • Loading a cassette with an endless roll of strip form material
    Patent number: 4139163
    Abstract: The invention relates to a method and device for loading a cassette with an endless roll of strip form material from sections of a finite feed spool.
    Type: Grant
    Filed: July 15, 1977
    Date of Patent: February 13, 1979
    Assignee: AGFA-Gevaert AG
    Inventors: Walter Tabel, Heinz Johanns