Patents by Inventor Christoph Schwertner

Christoph Schwertner 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).

  • Device for representing relief items
    Patent number: 6109922
    Abstract: An apparatus for conveying information includes a perforated plate having a plurality of circular openings; at least one pin (5, 15, 25, 25, 35, 45, 55, 65, 75, 85) which is axially movable to project through and above a respective circular opening, an electromagnetic actuator (6, 16, 66, 116) for moving the pin (5, 15, 25, 25, 35, 45, 55, 65, 75, 85), and a permanent magnet for retaining the pin in at least two stable positions.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: August 29, 2000
    Assignee: Caretec GmbH
    Inventors: Dietmar Litschel, Christoph Schwertner