Patents by Inventor Dudley Allan ROBERTS

Dudley Allan ROBERTS 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).

  • Patent number: 8779678
    Abstract: Described herein are segmented electronic ballasts for a high power are lamp, such as a High Intensity Discharge (“HID”) lamp, capable of drop-in replacement of a pre-existing magnetic ballast and methods of use thereof. In certain aspects, the segmented electronic ballasts described herein include a first housing containing a driver circuit configured to receive electrical power from a source of electrical power and configured to output a conditioned power signal; and also include a second housing containing a striker circuit connected to the driver circuit and configured to receive the conditioned power signal and ignite the lamp. In certain aspects, the methods described herein include removing a transformer of the pre-existing magnetic ballast from a transformer mounting position; and also include fixing the first housing to the transformer mounting position.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: July 15, 2014
    Inventors: Dudley Allan Roberts, John Keen Mathews
  • Publication number: 20130069529
    Abstract: Described herein are embodiments of an electronic device including a conductive noise shielding element. The noise shielding element may be connected to an electronic noise-generating element provided within a housing of the electronic device and may by connected to a source of direct current. The noise shielding element may be provided within the housing of the electronic device and may further be thermally connected to the housing.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 21, 2013
    Inventors: Dudley Allan ROBERTS, John Keen MATHEWS
  • Publication number: 20130049627
    Abstract: Described herein are segmented electronic ballasts for a high power are lamp, such as a High Intensity Discharge (“HID”) lamp, capable of drop-in replacement of a pre-existing magnetic ballast and methods of use thereof. In certain aspects, the segmented electronic ballasts described herein include a first housing containing a driver circuit configured to receive electrical power from a source of electrical power and configured to output a conditioned power signal; and also include a second housing containing a striker circuit connected to the driver circuit and configured to receive the conditioned power signal and ignite the lamp. In certain aspects, the methods described herein include removing a transformer of the pre-existing magnetic ballast from a transformer mounting position; and also include fixing the first housing to the transformer mounting position.
    Type: Application
    Filed: August 16, 2012
    Publication date: February 28, 2013
    Inventors: Dudley Allan ROBERTS, John Keen MATHEWS