Patents by Inventor Carlos Zayas

Carlos Zayas 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).

  • Flue gas energy transfer system
    Patent number: 6672255
    Abstract: A flue gas energy transfer system for increasing the efficiency of hot-water and/or steam boiler. They system utilizes an arrangement of heat transfer ducts with damper elements for the selective diverting exhaust combustion gases. The heat transfer ducts transmit the exhaust gases for contiguous contact with the boiler for conductive heat transfer. The heated gases are retained within the transfer duct after boiler shutdown for maintaining an elevated water temperature.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: January 6, 2004
    Inventor: Carlos Zayas