Patents by Inventor Stefano Natali

Stefano Natali 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).

  • Production of a zinc-aluminum alloy coating by immersion into molten metal baths
    Patent number: 6284122
    Abstract: A process for non-continuous galvanization of a metal object with a Zn—Al alloy including the steps of pre-coating the object with a metallic layer of sufficient thickness to protect the object from oxidation and yet sufficiently thin to permit the pre-coating to substantially completely react with or dissolve in the molten Zn—Al bath, subjecting the precoated object to a surface activation treatment by immersing it in hydrochloric acid and thereafter allowing the surface to dry with a protective coating of a chloride salt, and thereafter immersing the object in the Zn—Al bath.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: September 4, 2001
    Assignee: International Lead Zinc Research Organization, Inc.
    Inventors: Massimo Memmi, Bruno Brevaglieri, Stefano Natali, Michele Cecchini