Patents by Inventor Ari Maijala

Ari Maijala 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 and apparatus for controlling the surface mass distribution of paper web
    Patent number: 4761858
    Abstract: A procedure for controlling the surface mass distribution of a paper web being formed on a dry paper machine, wherein the suction air recirculated to the former is utilized. In procedures of prior art, the surface mass distribution has not been uniform enough. With the aid of the present invention the problem has been solved in that the quantity of air blown to the former is adjusted in the cross-machine direction in order to obtain the desired surface mass distribution.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: August 9, 1988
    Assignee: Yhtyneet Paperitehtaat Oy Jylhavaara
    Inventor: Ari Maijala