Patents by Inventor Norman G. Carlson

Norman G. Carlson 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).

  • Solar heat storage systems
    Patent number: 4194496
    Abstract: A spiral solar heat storage unit having air ducts radially spaced from the center to the rim of the spiral storage unit so the air from the solar collector can be delivered to the various ducts located radially along the spiral storage unit. By delivering the hottest air to the center of the spiral storage unit and the cooler air to the outer portion of the spiral, one provides a radial temperature gradient from the center of the spiral chamber to the rim of the spiral chamber.
    Type: Grant
    Filed: March 30, 1978
    Date of Patent: March 25, 1980
    Inventor: Norman G. Carlson