Patents by Inventor Allen J. Huff

Allen J. Huff 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).

  • Process for recovering sand and bentonite clay used in a foundry
    Publication number: 20030029592
    Abstract: Sand, bentonite clay and organics recovered as foundry waste from a green sand mold foundry are reclaimed for reuse in making new green sand molds and mold cores by a multi-step process involving both hydraulic and mechanical separation steps.
    Type: Application
    Filed: May 15, 2001
    Publication date: February 13, 2003
    Inventors: Robert C. Steele, Allen J. Huff