Patents by Inventor Martin J. Crawford

Martin J. Crawford 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: 7785402
    Abstract: A support framework for containing a media that is used to remediate corrosive vaporous pollutants in an air stream. The support framework is situated within a plenum and comprises two concentric open-lattice weave frameworks made from corrosion resistant fiberglass reinforced plastic “FRP”. The frameworks are of differing diameters and the media is placed into and contained within the open space formed between the inside wall of the outer framework and the outside wall of the inner framework. The open-lattice weave design allows a greater radial flow through the media per unit of time, doing so with less pressure drop and using less energy than the prior art. The use of FRP to form the framework walls allows creation of large units that are suitable for use in municipal and industrial settings, which was not possible previously.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: August 31, 2010
    Inventors: Martin J. Crawford, Jeff Jones
  • Publication number: 20080276581
    Abstract: A support framework for containing a granular medium that is used to remediate corrosive vaporous pollutants in an air stream. The support framework is situated within a plenum and comprises two concentric open-lattice weave cylinders made from corrosion resistant fiberglass reinforced plastic (FRP). The cylinders are of differing diameters and the granular medium is placed into and contained within the open space formed between the inside wall of the outer cylinder and the outside wall of the inner cylinder. The open-lattice weave design allows a greater radial flow through the medium per unit of time, doing so with less pressure drop and using less energy than the prior art. The use of FRP to form the cylinder walls allows creation of large units that are suitable for use in municipal and industrial settings, which was not possible previously.
    Type: Application
    Filed: May 7, 2007
    Publication date: November 13, 2008
    Inventors: Martin J. Crawford, Jeff Jones