Patents by Inventor Gary Stefanick

Gary Stefanick 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).

  • Fluxes for lead-free galvanizing
    Patent number: 5437738
    Abstract: The thermal resistance of a zinc chloride/ammonium chloride galvanizing preflux is improved by incorporating therein boric acid, other alkali metal chlorides and an aliphatic amino derivative. An improved zinc chloride/ammonium chloride galvanizing, top-flux includes a deoxidizer such as graphite or charcoal, other alkali metal chlorides and a foaming agent. Both compositions, the preflux and the top-flux, can be used to advantage in galvanizing steel with low lead or no lead zinc.
    Type: Grant
    Filed: June 21, 1994
    Date of Patent: August 1, 1995
    Inventors: Yum Gerenrot, David Leychkis, Thomas L. Ranck, James L. Griffin, Gary Stefanick