Patents by Inventor Halvor Forberg

Halvor Forberg 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 drying or cooling particulate materials, and an arrangement in a mixing machine
    Patent number: 4791735
    Abstract: The invention relates to a method for drying or cooling particulate materials in a machine where said particles are made to circulate, with a particle flow moving downwards along the inside of a chamber wall. The method is characterized in that a cooling or drying agent, or the like is introduced from above into the interface area between the particle flow directed downwards and the chamber wall.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: December 20, 1988
    Inventor: Halvor Forberg