Patents by Inventor Ludwig Schaffer

Ludwig Schaffer 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 apparatus
    Patent number: 4055289
    Abstract: A photographic apparatus in which strip-shaped material is to be advanced by means of a travelling leader tape, has a carrier for the strip-shaped material, the carrier being formed with a channel. An arrangement is provided by means of which the leader tape can be sprung into the channel in response to a command signal so that a mechanical connection becomes established between the leader tape and the carrier and the latter is taken along by the travelling leader tape.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: October 25, 1977
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Michael Kaiser, Ludwig Schaffer