Patents by Inventor Rolf Ploger

Rolf Ploger 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).

  • Carriage drawing machine
    Patent number: 4145815
    Abstract: A carriage drawing machine having a horizontal carriage driven along a horizontal slide rail support and carrying a vertical slide rail support. The vertical slide rail support and the horizontal carriage are coupled and are mutually tensioned by means of an interlocking mechanism.
    Type: Grant
    Filed: August 31, 1977
    Date of Patent: March 27, 1979
    Assignee: Franz Kuhlmann KG.
    Inventors: Heinrich Otten, Hans Eder, Rolf Ploger