Patents Represented by Attorney J. R. Pegan

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  • Minimization of mounds in iron-zinc electrogalvanized sheet
    Patent number: 5316653
    Abstract: A process and electrolyte for forming mound-free coatings of zinc-iron alloy on metal, e.g. steel, sheet and strip comprises passing the article to be plated through an electrolyte bath containing chlorides of iron and zinc and from about 2 to about 6 g/l, and particularly about 2.5 to about 3.5 g/l, of citric acid.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: May 31, 1994
    Assignee: USX Corporation
    Inventors: Chyang J. Wu, Jack E. Manack
  • Method of desulfurization in vacuum processing of steel
    Patent number: 5228902
    Abstract: A method for desulfurizing molten steel while the steel is subjected to a vacuum dehydrogenation treatment, comprising adding to the steel in a vacuum chamber a desulfurizing agent in lump form and comprising, by weight percent, about 50% CaO, about 38% CaF.sub.2, and about 10% MgO.
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: July 20, 1993
    Assignee: USX Corporation
    Inventors: Robert S. Bogan, Brad Hjerpe, Roger L. Marquart, James D. Reisinger