Patents by Inventor Bertil Berg

Bertil Berg 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).

  • Heating arrangement
    Patent number: 5479792
    Abstract: Apparatus is disclosed for heating cellulosic pulp in a pipe including fittings mounted on the outer surface of the pipe, and steam pipes connected to the fittings to supply steam thereto, the pipe including a number of apertures at locations corresponding to the fittings so that the steam can pass therethrough.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: January 2, 1996
    Assignee: Sunds Defibrator Industries Aktiebolag
    Inventors: Bertil Berg, Ralph Johansson