Patents by Inventor Kjell Sjodin

Kjell Sjodin 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 continuous production of lignocellulosic boards
    Patent number: 5989468
    Abstract: Methods for the continuous production of compressed board are disclosed including drying lignocellulosic fibrous material, gluing the lignocellulosic fibrous material, forming a mat, and pre-compressing the mat by controllably adding steam to the mat in an amount such that the temperature of the mat is increased to between about 60 and 90.degree. C.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: November 23, 1999
    Assignee: Sunds Defibrator Industries AB
    Inventors: Goran Lundgren, Kurt Schedin, Lars-Otto Sisleg.ang.rd, Kjell Sjodin
  • Method for producing lignocellulosic boards
    Patent number: 5932156
    Abstract: Methods for the continuous production of compressed board from lignocellulosic fibrous material are disclosed. The methods include providing the lignocellulosic fibrous material in the form of particles or fibers, drying, gluing and forming the lignocellulosic fibrous material into the form of a mat, and compressing the mat in the presence of steam in a single step which includes applying a compression roller to the mat and applying steam through the compression roller.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: August 3, 1999
    Assignee: Sunds Defibrator Industries AB
    Inventors: N. Lennart Eriksson, Goran Lundgren, Kurt Schedin, Kjell Sjodin