Patents by Inventor Andreas C. Schultheis

Andreas C. Schultheis 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).

  • Punch alarm system for photoprinting machines
    Patent number: 4140390
    Abstract: Sensors are added to a conventional photoprinting machine, adjacent the edges of the photographic print paper and downstream of the marking system in the machine, for monitoring the presence and absence of cut marks and sort marks in or on the strip of photographic print paper. The sensors are coupled to a logical circuit and associated control circuits which provide the operator of the photoprinting machine with an indication of the operability of the marking system in said machine.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: February 20, 1979
    Assignee: System Planning Corporation
    Inventors: Andreas C. Schultheis, Charles S. Lerch, Jr., Raymond L. Harris