Patents by Inventor Frederick A. Little

Frederick A. Little 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).

  • Heat sensing means, particularly for solar water heating apparatus
    Patent number: 4263892
    Abstract: This invention relates to temperature differential sensing means particularly suitable for sensing temperatures at respective opposite sides of a heat shield whereby alignment of the shield with respect to a heat source may be monitored so as to enable the shield to be maintained in operative aligned relationship with the heat source.
    Type: Grant
    Filed: September 27, 1978
    Date of Patent: April 28, 1981
    Inventors: Frederick A. Little, David C. Little