Patents by Inventor Nils Evert Erling Book

Nils Evert Erling Book 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).

  • Apparatus for the hot-pressing of composite boards made from lignocellulosic material
    Patent number: 4050863
    Abstract: In a method of heat-pressing sheets of lignocellulosic material the sheets are placed on combined conveying and draining plates externally of a hot press and are charged to and pressed in the press while supported by the plates. Draining of gas or liquid and vapor is effected vertically through the conveying and draining plates at a low temperature. Then the gas or liquid and vapor is drained horizontally through passages arranged in the surfaces of press plates adjacent the sheets.
    Type: Grant
    Filed: December 1, 1975
    Date of Patent: September 27, 1977
    Assignee: Aktiebolaget Motala Verkstad
    Inventor: Nils Evert Erling Book