Patents by Inventor Olavi Sundstrom

Olavi Sundstrom 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).

  • Procedure for determining and controlling the composition proportions of wood chip mixes in alkaline pulp digestion processes
    Patent number: 5032223
    Abstract: A procedure for determining the composition of a wood chip mix dispensed in alkaline delignifying processes, particularly in sulphate and soda/anthraquinone cooking, with the aid of the monomeric compounds produced in connection with the cooking and dissolved in the waste liquor. As taught by the procedure, a cooking liquor sample is taken in the cooking process, this sample being chromatographically analyzed. On the basis of the content proportions of certain compounds analyzed by substance groups, the composition of the dispensed wood chip mix is determined, and at the same time information is gained for optimating the conditions applied in the cooking process.
    Type: Grant
    Filed: October 4, 1989
    Date of Patent: July 16, 1991
    Assignee: Kajaani Elektroniikka Oy
    Inventors: Raimo Alen, Pasi Hentunen, Leena Paavilainen, Eero Sjostrom, Taina Sopenlehto-Pehkonen, Olavi Sundstrom