Patents by Inventor Bjarne S. L. Ekberg

Bjarne S. L. Ekberg 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 for removing a filter cake
    Patent number: 5178777
    Abstract: The invention relates to a method for removing a filter cake from a liquid-saturated suction surface, when the liquid in the creation of the filter cake is sucked through the filter surface of the filter element. According to the invention, on the filter surface of the filter element (1) there is formed a liquid film (3) by means of reversed pressure effected through the filter element (1). Essentially immediately after the creation of the liquid film, at least one gas blowing is directed to the filter surface of the filter element (1) in order to detach the filter cake (2) located on the filter surface.
    Type: Grant
    Filed: November 18, 1991
    Date of Patent: January 12, 1993
    Assignee: Outomec Oy
    Inventors: Bjarne S. L. Ekberg, Jan O. M. Hognabba, Marti A. Sointusalo