Patents by Inventor David Aalazar Duarte

David Aalazar Duarte 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).

  • FLEXIBLE CONDUIT WITH TAPERED MEMBERS
    Publication number: 20160069487
    Abstract: A flexible conduit system having a corrugated flexible conduit, a first tapered member disposed in the flexible conduit at the inlet end or close to the inlet end of the corrugated flexible conduit and a second tapered member disposed in the flexible conduit at the outlet end or close to the outlet end of the corrugated flexible conduit. The first tapered member at the inlet end converges and centers the flow of gases through the flexible conduit and the second tapered member at the outlet end channels the flow of gases away from the corrugations of the corrugated flexible conduit thereby reducing noise in the flexible conduit system.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 10, 2016
    Inventors: Qin Yang, David Aalazar Duarte, Thomas L. Cumbey, Edward M. Derybowski