Patents Assigned to Tengam Company Limited
  • Magnetic device for treatment of calcareous liquids
    Patent number: 4157963
    Abstract: The invention provides a compact magnetic device for the treatment of liquids having a calcareous content to limit hard scale formations. The device comprises a magnetic source, thin magnetic plates spaced from each other and having peripheral edges and positioned to concentrate the polarity at each pole in their peripheral edges, whereby a curtain of lines of force extends between the edges.
    Type: Grant
    Filed: May 16, 1978
    Date of Patent: June 12, 1979
    Assignee: Tengam Company Limited
    Inventors: Edward T. Jessop, Robert C. Hanson