Patents by Inventor Richard Herreid

Richard Herreid 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).

  • Method of drying a sand mold using a vacuum
    Publication number: 20050178520
    Abstract: A method of drying a sand mold mixture containing moisture includes restraining the sand mold mixture and exposing the sand mold mixture to a vacuum. The vacuum flashes off the moisture within the sand mold mixture thereby drying the sand mold mixture to create a solidified sand mold. The restraining member prevents voids from forming in the sand mold during exposure to the vacuum.
    Type: Application
    Filed: February 18, 2004
    Publication date: August 18, 2005
    Inventors: Daniel Franklin, Richard Herreid