Patents by Inventor Kjell F. Froslund

Kjell F. Froslund 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).

  • Device for admixing a processing agent to a pulp suspension
    Patent number: 5505540
    Abstract: Apparatus for mixing a processing medium with the pulp suspension within a bin is disclosed, the apparatus including a housing attached to a wall of the bin, a rotary shaft extending through the housing with a propeller attached to the shaft by means of a hub, and a nozzle surrounding the propeller for directing the pulp suspension from an inlet in the nozzle to the propeller. The housing includes a dilution chamber for the processing medium and an outlet from the dilution chamber for directing the processing medium towards the hub, and includes a gap separating the outlet aperture from the hub so that the processing medium can be contacted with the pulp suspension before the pulp suspension reaches the propeller.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: April 9, 1996
    Assignee: Sunds Defibrator Industries Aktiebolag
    Inventor: Kjell F. Froslund