Patents by Inventor Norman J. Petersen

Norman J. Petersen 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).

  • Imminent icing condition enunciator
    Patent number: 5796344
    Abstract: An imminent icing condition enunciator employs an infrared sensor with a focusing element to receive ambient infrared energy from a surface, particularly a road surface, and the output of the sensor is processed to provide an indication of imminent icing to the operator of, for example, an automobile or other vehicle. The device is suitably mounted to a vehicle, within a mirror enclosure so as to provide an unobstructed view of the roadway surface.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: August 18, 1998
    Assignee: Sprague Controls, Inc.
    Inventors: Wayne L. Mann, Norman J. Petersen