Patents by Inventor Daniel Pulliam

Daniel Pulliam 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).

  • Patent number: 6350532
    Abstract: The invention relates to a recyclable aluminum foil. The foil is made of an alloy containing 0.2%-0.5% Si, 0.4%-0.8% Fe, 0.1%-0.3% Cu, and 0.05%-0.3% Mn by weight. with the balance aluminum and incidental impurities. The foil contains at least about 2% by weight of strengthening particulates and has at least about 0.1% by weight of the copper and/or manganese retained in solid solution. The invention also relates to a method of manufacturing a sheet of aluminum based on an alloy which involves continuously casting an alloy of the above composition to form a sheet of alloy, coiling said sheet of alloy, cold rolling the sheet of alloy, interannealing the alloy after a first pass of the cold rolling; and further cold rolling the alloy to a final desired gauge. The foil, which is suitable for household use, has improved strength due to a larger quantity of dispersoids fortified by elements in solid solution, and can be recycled with other alloy scrap.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: February 26, 2002
    Assignee: Alcan International Ltd.
    Inventors: Thomas L. Davisson, Luc Montgrain, Daniel Pulliam, Sadashiv Nadkarni