Patents by Inventor Dirk J. Siekmann

Dirk J. 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).

  • Cushioning conversion machine and method
    Patent number: 6540652
    Abstract: A cushioning conversion machine (20) for converting sheet-like stock material (22) into a three-dimensional cushioning product (P) including a device (400; 400′; 500; 600; 600′; 700) which controls the width of the strip and which may be selectively adjusted to change the width of the strip. By selectively setting the device (400, 400′, 500; 600; 600′; 700), a cushioning product of a desired width may be produced. For more sophisticated packaging needs, the stock material may be converted into a first portion of a certain width, the device adjusted, and then the stock material may be converted into a second portion of a different width whereby the cushioning product will have continuous portions of different widths.
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: April 1, 2003
    Assignee: Ranpak Corp.
    Inventors: Richard O. Ratzel, Roger P. M. Rinkens, Michael J. Lencoski, Dirk J. Siekmann