Patents by Inventor Gary J. DiFranco

Gary J. DiFranco 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).

  • Method for coating a metal strip
    Patent number: 5407702
    Abstract: A method for extrusion coating both sides of a metal strip. A metal strip, such as aluminum alloy strip, is moved through a pre-conditioner, two extrusion dies, a post heater and a cooling system. Both sides of the strip are coated with thin coatings of polyester material. The coated metal strip is useful for containers, such as cans and can ends, as well as for automobiles, appliances, aerospace, construction and electrical devices.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: April 18, 1995
    Assignee: Aluminum Company of America
    Inventors: David A. Smith, Susan A. Stanton, Gary J. DiFranco, Roy B. Steidley, John M. Stinson, Thomas L. Levendusky, Vincent J. Downard, William F. Forster, John R. McAllister
  • Forming clear gel and transparent film by reacting alumina hydrate with vinyl alcohol-vinyl acetate copolymer
    Patent number: 4785049
    Abstract: A stable gel is formed by reacting alumina hydrate sol and a vinyl alcohol-vinyl acetate copolymer in an aqueous solution having pH less than about 7 to form a polymeric sol and then transforming the sol to a gel. The copolymer preferably comprises polyvinyl acetate that is about 85-99% hydrolyzed. The gel is drawn into a thin layer and water is removed to form a thin, substantially crack-free film. The film makes a stable, generally transparent insulating material.
    Type: Grant
    Filed: July 27, 1987
    Date of Patent: November 15, 1988
    Assignee: Aluminum Company of America
    Inventors: Willy M. Balaba, Gary J. DiFranco