Patents by Inventor Stacey L. Clifford

Stacey L. Clifford 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).

  • SAND ADDITIVES FOR MOLDS/CORES FOR METAL CASTING
    Publication number: 20120199309
    Abstract: A foundry mix composition including silica sand, unexpanded perlite ore, and a binder material. The unexpanded perlite ore is present in the foundry mix composition from about 0.5 wt % to about 5.0 wt %. Exemplary embodiments of the present invention also contemplate methods of making a sand mold/core from such a foundry mix composition.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Applicant: ASK CHEMICALS L.P.
    Inventors: Ralph E. Showman, Stacey L. Clifford, Sean B. Harmon