Patents by Inventor Chester W. Chapman

Chester W. Chapman 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).

  • Forced air vacuum drying
    Patent number: 5732478
    Abstract: Residual moisture is removed from an article by placing the article in a chamber, supplying heated fresh air to the chamber via one or more air knives, and evacuating the chamber to remove the residual moisture. The air knives entrain ambient air from within the chamber by Coanda effect air flow, thereby circulating a mixture of fresh air and ambient air about the article. The supply of air to the chamber is interrupted while the chamber is being evacuated to reduce the air pressure within the chamber to on kPa to vaporize residual moisture in the article.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: March 31, 1998
    Assignee: Altos Engineering, Inc.
    Inventors: Chester W. Chapman, Charles S. Leech, Jr.