Patents Assigned to Swemac S.A.
  • Apparatus for eliminating by flotation impurities in the form of solid particles contained in a liquid
    Patent number: 4186094
    Abstract: Apparatus for eliminating impurities by flotation of such impurities wherein a stream of air is injected into a flow of liquid in a flotation cell so as to form distributed air bubbles fixed on the impurities, which air bubbles rise to the surface for their discharge as foam.
    Type: Grant
    Filed: September 20, 1977
    Date of Patent: January 29, 1980
    Assignee: Swemac S.A.
    Inventor: Enar V. Hellberg