Patents by Inventor Earl W. Blair, Jr.

Earl W. Blair, Jr. 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).

  • Patent number: 5669946
    Abstract: An air particulate filtration device designed to filter the primary filtration exhaust from a mechanical abrading dust collection device. The filtration device includes a flexible duct used to guide a positive pressure air stream from a mechanical abrading dust collection device into a receptacle partially filled with a liquid and buoyant packing material. The buoyant packing material aids in increasing the surface liquid contact with the positive pressure air stream. The fine dust and particulates that contact the liquid settle to the bottom of the receptacle. The positive pressure air stream passes though a final air filter located near the top of the filtration device after making contact with the liquid surface.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: September 23, 1997
    Inventor: Earl W. Blair, Jr.