Patents by Inventor Alan C. Herzer

Alan C. Herzer 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: 6103361
    Abstract: Smooth, patterned substrates useful in producing decorative cookware are formed by coating a base with a mixture of fluoropolymer and magnetic flakes and magnetically inducing an image in the polymer coating composition. The baked fluoropolymer release coating contains magnetizable flakes, a portion of the flakes being oriented in the plane of the substrate and a portion of said flakes being magnetically reoriented to form a pattern in the coating which is observed in reflected light, the flakes having a longest dimension which is greater than the thickness of said coating. The patterned substrate is formed by applying magnetic force through the edges of a magnetizable die positioned under a coated base to induce an imaging effect or pattern. The coating composition is then cured resulting in a smooth surface, patterned nonstick finish on the substrate.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: August 15, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Kenneth Batzar, Jeffrey Hugh Hamilton, Alan C. Herzer, Thomas J. Leck, Christopher Mark Rey