Patents by Inventor Soung Hwan Lyu

Soung Hwan Lyu 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).

  • Limited flash-over electric power switch
    Patent number: 8063333
    Abstract: A limited flash-over electric power switch uses a dielectric gas regulator and a flash-over arrestor to greatly diminish the occurrences of high voltage flash-over during operation of a circuit interrupter. The dielectric gas regulator prevents the flow of the dielectric gas into the arc gap during an initial portion of the opening stroke of the interrupter contacts. Once the arc gap is sufficiently wide to greatly diminish the likelihood of a high voltage flash-over, the dielectric gas regulator allows the dielectric gas to flow into the arc gap to extinguish the arc. The flash-over arrestor snubs out incipient flash-over that may occur as the arc attempts to reform across the arc gap. The flash-over arrestor may be a conductive ring located on the interior surface of the nozzle in the region of the orifice.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: November 22, 2011
    Assignee: Southern States, Inc.
    Inventors: Joseph R. Rostron, Bradley J. Schafer, Soung Hwan Lyu, Brian Roberts, Richard Burge
  • LIMITED FLASH-OVER ELECTRIC POWER SWITCH
    Publication number: 20100193474
    Abstract: A limited flash-over electric power switch uses a dielectric gas regulator and a flash-over arrestor to greatly diminish the occurrences of high voltage flash-over during operation of a circuit interrupter. The dielectric gas regulator prevents the flow of the dielectric gas into the arc gap during an initial portion of the opening stroke of the interrupter contacts. Once the arc gap is sufficiently wide to greatly diminish the likelihood of a high voltage flash-over, the dielectric gas regulator allows the dielectric gas to flow into the arc gap to extinguish the arc. The flash-over arrestor snubs out incipient flash-over that may occur as the arc attempts to reform across the arc gap. The flash-over arrestor may be a conductive ring located on the interior surface of the nozzle in the region of the orifice.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 5, 2010
    Inventors: Joseph R. Rostron, Bradley J. Schafer, Soung Hwan Lyu, Brian Roberts, Richard Burge