Patents by Inventor Dirk Siekmann

Dirk Siekmann 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).

  • Patent number: 5989176
    Abstract: A safety output chute for a cushioning conversion machine includes a chute having an input end and an output end, the input end including an opening for receiving a flexible cushioning product from an outlet of the cushioning conversion machine; and a plurality of rollers situated inside the chute, the rollers being oriented such that the flexible cushioning product must follow a non-linear path from the input end of the chute to the output end of the chute. Other embodiments of a safety output chute are also disclosed.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: November 23, 1999
    Assignee: Ranpak Corporation
    Inventors: Richard O. Ratzel, Joseph J. Harding, Dirk Siekmann, Edward W. Lintala