Patents by Inventor Sander A. Levy

Sander A. Levy 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: 5466312
    Abstract: A method for making aluminum foil comprises providing an aluminum-based alloy composition consisting essentially of about 0.05 to 0.20 weight percent silicon, about 0.02 to 0.50 weight percent iron, about 0.05 to 0.30 weight percent copper and balance aluminum and inevitable impurities and grain refining elements, wherein the ratio of iron to silicon ranges between about 2:1 and 4:1. The aluminum-alloy composition is continuously cast using a unitary and chilled casting wheel to form a cast strip product of desired width and gauge. The cast strip product is then homogenized, cold rolled and recrystallized annealed into an aluminum foil product. The aluminum-based alloy composition produces a single roll cast product having minimum microshrinkage porosity on the air surface thereof. Reducing or eliminating the microshrinkage porosity in the cast product results in an aluminum foil product having a minimum of pinholes in the final foil product.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: November 14, 1995
    Assignee: Reynolds Metals Company
    Inventors: Bennie R. Ward, Jr., Sander A. Levy, George A. Sloan