Patents by Inventor Evan Thomas Richard Jones

Evan Thomas Richard Jones 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).

  • Arc steelmaking
    Patent number: 4060406
    Abstract: The invention provides a slag conditioner for use in electric arc steelmaking which comprises 30 to 80% by weight of alumina, 10 to 30% by weight of aluminium 5 to 40% by weight fluorspar and 0 to 20% by weight of alkali metal carbonate. The conditioner is added with lime to deoxidized steel suitably in an amount of from 5 to 15 Kg/tonne of steel to promote rapid reduction of the initial refining slag iron oxide content together with increased slag fluidity and a faster rate of lime dissolution to form a reactive slag.
    Type: Grant
    Filed: July 8, 1976
    Date of Patent: November 29, 1977
    Assignee: Foseco International Limited
    Inventor: Evan Thomas Richard Jones
  • Manufacture of steel
    Patent number: 4014684
    Abstract: The invention is concerned with the desulphurizing of molten ferrous metal by the use of a lime-based flux composition. The composition comprises, by weight, at least 60% of lime and includes from 1 to 20% of sodium carbonate, from 5 to 30% of an alkali metal or alkaline earth metal fluoride, typically fluorspar, and from 5 to 20% of alumina. To desulphurize molten metal the flux is added to the molten metal in a vessel, typically by injecting the flux in particulate form into the molten metal.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: March 29, 1977
    Assignee: Foseco International Limited
    Inventors: Evan Thomas Richard Jones, Robert Anthony Fishburn
  • Manufacture of steel
    Patent number: 4014685
    Abstract: The invention is concerned with the desulphurizing of molten steel by the use of a lime-based flux. In addition to lime the flux includes sodium carbonate, an alkali metal or alkaline earth metal fluoride, typically fluorspar, alumina and a metallic reducing agent. In particular, the reducing agent is aluminium or an alloy thereof and is present in an amount of 2 to 15% by weight. To desulphurize molten metal the flux is added to the molten metal in a vessel, typically by injecting the flux in particulate form into the molten metal.
    Type: Grant
    Filed: November 14, 1974
    Date of Patent: March 29, 1977
    Assignee: Foseco International Limited
    Inventors: Evan Thomas Richard Jones, Robert Anthony Fishburn
  • Additives to improve slag formation in steelmaking furnaces
    Patent number: 3964899
    Abstract: In steelmaking, the formation of a lime-based desulphurising slag is promoted by adding, with the lime, an additive including at least 20% by weight Al.sub.2 O.sub.3 and including one or more of oxide of iron, magnesium, manganese and titanium, and melting below 1600.degree.C.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: June 22, 1976
    Assignee: Foseco International Limited
    Inventors: Evan Thomas Richard Jones, Robert Anthony Fishburn