Patents by Inventor Erik Stolpe

Erik Stolpe 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).

  • Method of coating and cutting wrapper blanks
    Patent number: 4119452
    Abstract: A method of manufacturing packaging-container blanks is disclosed which method includes forming a substantially continuous sheet of blanks which sheet comprises a substrate and a coating material attached to said substrate. The coating material at the edges of the blanks of said sheet either extends beyond the substrate or is unattached to the substrate adjacent the edge, or both. The sheet of blanks is manufactured by extruding a molten thermoplastic coating material onto the substrate between two revolving cylindrical rolls. The substrate and the coating material are joined in such a manner that at spaced, selected intervals, elongated zones are provided where they are unattached to each other.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: October 10, 1978
    Assignee: Pekema OY
    Inventors: Erik Stolpe, Arto Honkanen, Erkki Laiho