Patents by Inventor Per Drengsgaard Nielsen

Per Drengsgaard Nielsen 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: 4120713
    Abstract: A web-like fibrous material consisting of fibres standing on end is produced from a starting material consisting of a web-like fibrous material, in which the fibres are oriented substantially transversely or longitudinally of the web. The starting material is cut into strips which in well-known manner are arranged side by side with the fibres standing on end. It is the object of the invention to eliminate the spaces or interfaces between these strips in a more efficient manner than has hitherto been possible. To this end, the side-by-side pattern of strips is deposited on a moving intermediary supporting surface, on which they are retained by an attractive force directed towards said surface and are at the same time subjected to a spreading action transversly of the strips, whereafter the fibres are deposited at a second depositing position on a moving product receiving surface while at the same time interrupting the attractive force acting on the fibres being deposited.
    Type: Grant
    Filed: June 14, 1977
    Date of Patent: October 17, 1978
    Assignee: A/S Weston Taeppefabrik
    Inventors: Finn Ulrik Hansen Jensen, Per Drengsgaard Nielsen, Esben Bruhn