Patents by Inventor N. Rodger Williamson, III

N. Rodger Williamson, III 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).

  • Photo control for a luminaire
    Patent number: 8884532
    Abstract: An improved lighting control for a luminaire operates an LED luminaire so that its relay opens and closes at or very near the zero current cross-over point so as to reduce the in-rush current to the luminaire, and, if the relay contacts do become stuck, the photo control senses the sticking and electronically vibrates the relay to free its contacts.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 11, 2014
    Assignee: Ripley Lighting Controls, LLC
    Inventors: Richard S. Jones, Dale Thomas, Hal Adair, N. Rodger Williamson, III
  • Photo Control for a Luminaire
    Publication number: 20130313979
    Abstract: An improved lighting control for a luminaire operates an LED luminaire so that its relay opens and closes at or very near the zero current cross-over point so as to reduce the in-rush current to the luminaire, and, if the relay contacts do become stuck, the photo control senses the sticking and electronically vibrates the relay to free its contacts.
    Type: Application
    Filed: May 25, 2012
    Publication date: November 28, 2013
    Inventors: Richard S. Jones, Dale Thomas, Hal Adair, N. Rodger Williamson, III