Patents by Inventor Magnus Hjortstam

Magnus Hjortstam 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).

  • Patent number: 6609857
    Abstract: A method for mixing a pulverulent material in a main gas flow with a view to achieving uniform distribution of the pulverulent material. The turbulence in the main gas flow is increased in a vortex-generating zone. The pulverulent material is introduced into the main gas flow, in a mixing zone, with a carrier gas flow whose net motion during introduction is essentially opposite to the main gas flow. The mixing zone is positioned downstream of the vortex-generating zone and in the vicinity thereof. The carrier gas flow with the pulverulent material is in a rotational zone given a helical motion, whose axis of symmetry is essentially parallel with the direction of flow of the main gas flow, and is introduced into the mixing zone in the form of a divergent hollow cone. A device for carrying out the method comprises a gas duct (1) for the main gas flow with vortex-generating means (4) and an introducing means (11) for introduction of pulverulent material in dispersed state into a carrier gas flow.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: August 26, 2003
    Assignee: ABB Fläkt Aktiebolag
    Inventors: Magnus Hjortstam, Lars-Erik Johansson