Patents Assigned to Rossborough Manufacturing Company
  • Reclaimed magnesium desulfurization agent
    Publication number: 20040083851
    Abstract: A method and composition for removing sulfur from molten ferrous material, particularly molten iron. The desulfurization agent includes reclaimed magnesium scrap, a gas-producing compound and a calcium compound.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 6, 2004
    Applicant: Rossborough Manufacturing Company, a Delaware Corporation
    Inventor: Gerald R. Zebrowski
  • Process for magnesium granules
    Publication number: 20040074339
    Abstract: A method and apparatus of reclaiming magnesium from post consumer scrap and/or secondary magnesium turnings by feeding the post consumer scrap and/or secondary magnesium turnings into a rotary tray dryer and subjecting the post consumer scrap and/or secondary magnesium turnings to a controlled temperature and atmospheric environment to remove a substantial amount of liquid from the post consumer scrap and/or secondary magnesium turnings.
    Type: Application
    Filed: October 18, 2002
    Publication date: April 22, 2004
    Applicant: Rossborough Manufacturing Company, a Delaware corporation
    Inventor: Joseph R. Jackman
  • Desulfurization agent
    Patent number: 5368631
    Abstract: A method for desulfurizing molten pig-iron involving injecting a gas-evolving desulfurization agent which includes a calcium compound and a gas forming material comprising of a gas-producing compound, a slag-forming agent and magnesium.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: November 29, 1994
    Assignee: Rossborough Manufacturing Company
    Inventors: W. Neil Rossborough, Harry E. Trout
  • Desulfurization agent
    Patent number: 5358550
    Abstract: A method for desulphurizing molten pig-iron involving injecting a gas-evolving desulphurizing agent which includes a calcium compound and a gas-forming material comprising of a liquid gas-producing compound absorbed in a porous slag-forming agent and at least 50% wt. magnesium.
    Type: Grant
    Filed: October 26, 1992
    Date of Patent: October 25, 1994
    Assignee: Rossborough Manufacturing Company
    Inventor: W. Neil Rossborough