Patents by Inventor Peter Muhlen

Peter Muhlen 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).

  • Hygroscopic transporting web
    Patent number: 3957090
    Abstract: A web or belt, particularly for transporting moist corrugated cardboard, has an inner woven layer of high tensile strength, and two outer woven layers consisting of threads made of heat and abrasion resistant polyester and highly hygroscopic fibers, such as cellulose fibers. The warp threads of the outer layers pass over at least two weft threads staggered in longitudinal direction to avoid formation of a transverse groove across the web or belt.
    Type: Grant
    Filed: September 4, 1973
    Date of Patent: May 18, 1976
    Assignee: Muhlen Sohn
    Inventors: Peter Muhlen, Karl Kassel