Patents Examined by David Heg
  • Lance apparatus
    Patent number: 4326701
    Abstract: This invention relates to an apparatus for delivery of finely divided solids into molten metal. More particularly it relates to a modular lance so constructed and arranged as to inject finely divided reactant and fluxing material, as well as gases, into molten pig iron and the like for desulfurization and other operations compatible with such equipment.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: April 27, 1982
    Assignee: Kaiser Steel Corporation
    Inventors: Ralph P. Hayden, Jr., Joe M. Barksdale