Patents by Inventor Hiram Darden Chambliss

Hiram Darden Chambliss 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).

  • Energy saving means reducing power used by lamps
    Patent number: 4097782
    Abstract: Energy is saved in lighting lamps by pulse operation at periodic duty cycles of less than 100% on time with little effect on apparent brightness when viewed by the normal human eye because of the quality of retention of a peak flask for a finite time. At periodic frequencies above about fourteen cycles the lamps appear to be continuously energized with little flicker.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: June 27, 1978
    Inventor: Hiram Darden Chambliss