Patents by Inventor Karl F. O. Jakobson

Karl F. O. Jakobson 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 separation of material mixtures, containing abrasive particles, in a hydrocyclone separator
    Patent number: 4278534
    Abstract: A method is disclosed, intended for usage with double-mantled hydrocyclone separators of the type which is preferably used in the pulp and paper industry for purification of cellulose fiber suspensions, containing abrasive particles, which may, in the long run, cut a hole in the conical part of the hydrocyclone separator. According to the method, the operation of the hydrocyclone separators is continued also after the moment, when a hole has been formed in the conical part of the hydrocyclone separators. It has become apparent, that no deterioration of the separation ability is observed.
    Type: Grant
    Filed: November 16, 1979
    Date of Patent: July 14, 1981
    Assignee: AB Celleco
    Inventor: Karl F. O. Jakobson