Patents by Inventor Louis A. Guzzi

Louis A. Guzzi 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).

  • Method and apparatus for preventing ice formation at the entrance portal of a mine
    Patent number: 4249462
    Abstract: To prevent the formation of ice at the inlet portal of a mine and to heat air during the winter season, air is heated and forced into the mine shaft near the entrance portal at a pressure greater than atmospheric.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: February 10, 1981
    Inventor: Louis A. Guzzi