Patents by Inventor Allen James Huff

Allen James 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
    Patent number: 6834706
    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: Grant
    Filed: February 4, 2003
    Date of Patent: December 28, 2004
    Assignee: Foundry Advanced Clay Technologies, L.L.C.
    Inventors: Robert C. Steele, Allen James Huff
  • Process for recovering sand and bentonite clay used in a foundry
    Publication number: 20030145972
    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: February 4, 2003
    Publication date: August 7, 2003
    Inventors: Robert C. Steele, Allen James Huff
  • Process for recovering sand and bentonite clay used in a foundry
    Patent number: 6554049
    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: Grant
    Filed: May 15, 2001
    Date of Patent: April 29, 2003
    Assignee: Foundry Advanced Clay Technologies, L.L.C.
    Inventors: Robert C. Steele, Allen James Huff