Patents by Inventor Ralph J. Paolino

Ralph J. Paolino 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 heat reclaimer
    Patent number: 4381819
    Abstract: A flue heat reclaimer is constructed to be mounted on the exterior of a flue duct of a heater and provide a spiral-shaped heat transfer passage extending around the flue duct. A fan causes air to flow through the heat transfer passage so that the temperature of this air is elevated by reason at its extended heat transfer relationship with the flue duct.
    Type: Grant
    Filed: May 21, 1981
    Date of Patent: May 3, 1983
    Inventor: Ralph J. Paolino