Patents by Inventor Amy P. Hale

Amy P. Hale 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).

  • Lightweight tundish refractory composition
    Patent number: 5073525
    Abstract: Lightweight, low density magnesia-based tundish refractory compositions containing from 0.01 to 2.00 weight percent styrofoam beads and up to 5.0 weight percent paper fiber are disclosed. The compositions have excellent rapid heating, thermal insulative, vertical adhesion and deskullability properties. The compositions are useful as a lining applied over the permanent lining of a tundish, such as is used in continuous molten metal casting processes.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: December 17, 1991
    Assignee: Quigley Company, Inc.
    Inventors: Jung-Jen A. Cheng, Wilfred A. Martinez, Amy P. Hale