Patents by Inventor Nils-Eric Carlsson

Nils-Eric Carlsson 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: 4357241
    Abstract: For separating an emulsion comprising substantially a heavier and a lighter liquid there is used a plurality of superimposed, liquid-filled, shallow separation chambers which have a lower outlet for separated heavier liquid, an upper outlet for separated lighter liquid, and an emulsion-inlet remote from the outlets. The separation chambers are maintained under an overpressure by causing the heavier and the lighter liquid, separated in the chambers by self-separation under the action of gravity, to pass from the chambers via a respective one of two pressure-holding vessels containing a respective heavier or lighter liquid. The emulsion is fed batchwise into at least one separation chamber at a time, at a temperature greater than the temperature of the liquid already present in the chamber, and in a volumetric amount which is less than the volume of the chamber.
    Type: Grant
    Filed: November 28, 1980
    Date of Patent: November 2, 1982
    Assignee: Supra Aktiebolag
    Inventors: Ib H. Knudsen, Bror A. O. Lindstrom, Nils-Eric Carlsson