Patents by Inventor Norman B. Kelley

Norman B. Kelley 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: 4674561
    Abstract: An air temperature control system which is highly energy efficient and virtually maintenance free. The system includes an intake conduit for receiving air at a non-selected temperature, an exit conduit for delivering the air at a controlled temperature to a preselected location, a heat exchanger located below the surface of the ground, and a heat sink preferably of limestone which surrounds the heat exchanger and which adjusts the temperature of the air flowing through the heat exchanger to a controlled temperature. A fan effects the flow of air through the system.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: June 23, 1987
    Inventor: Norman B. Kelley