Patents by Inventor Timothy David Russell

Timothy David Russell 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).

  • HIGH EFFICIENCY CERAMIC LAMP
    Publication number: 20150015144
    Abstract: Embodiments provide a ceramic metal halide (CMH) lamp and methods for making the same that provide or achieve, during lamp operation, a correlated color temperature (CCT) greater than 5000 K, a color rendering index (CRI) of 85 or greater, a lumen maintenance percentage (LM %) greater than 90%, and a life of at least 15,000 hours.
    Type: Application
    Filed: July 9, 2013
    Publication date: January 15, 2015
    Inventors: Timothy David RUSSELL, James A. LEONARD, Nicholas James BARBUTO, Corey Justin CHECKAN
  • Ceramic metal halide lamp with oxygen content selected for high lumen maintenance
    Patent number: 8653732
    Abstract: A lamp includes a discharge vessel with electrodes extending into the discharge vessel and an ionizable fill scaled within the vessel. The fill includes a buffer gas, optionally mercury, and a halide component. The lamp includes available oxygen, sealed within the discharge vessel, at a concentration of at least 0.1 ?mol O/cc.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: February 18, 2014
    Assignee: General Electric Company
    Inventors: Raghu Ramaiah, Timothy David Russell, Ágoston Böröczki, Natalie Marie Bate
  • Lanthanide oxide as an oxygen dispenser in a metal halide lamp
    Patent number: 8358070
    Abstract: A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas and a halide component that includes a rare earth halide. A source of oxygen which includes a lanthanide oxide is present in the discharge vessel. The source of oxygen provides oxygen for a regenerative cycle which reduces blackening of the lamp walls by tungsten from the electrodes.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: January 22, 2013
    Assignee: General Electric Company
    Inventors: Jianmin He, Zoltan Toth, Timothy David Russell
  • STREET LIGHTING LAMP WITH LONG LIFE, HIGH EFFICIENCY, AND HIGH LUMEN MAINTENANCE
    Publication number: 20110031880
    Abstract: A lamp includes a discharge vessel and electrodes extending into the discharge vessel. The lamp further includes an ionizable fill sealed within the vessel. The fill includes an inert gas and a halide component. The halide component includes a sodium halide, a thallium halide, at least one of a calcium halide and a strontium halide, and at least one of a rare earth halide. The rare earth (RE) halide is selected from the group consisting of lanthanum, cerium, praseodymium, samarium and neodymium, and combinations thereof. The fill establishes a Na/RE ratio of 8?Na/RE?48.
    Type: Application
    Filed: March 25, 2010
    Publication date: February 10, 2011
    Inventors: Timothy David Russell, Gergely Ormandlaky, Gabor Mikovics
  • CERAMIC METAL HALIDE LAMP WITH OXYGEN CONTENT SELECTED FOR HIGH LUMEN MAINTENANCE
    Publication number: 20100013417
    Abstract: A lamp includes a discharge vessel with electrodes extending into the discharge vessel and an ionizable fill scaled within the vessel. The fill includes a buffer gas, optionally mercury, and a halide component. The lamp includes available oxygen, sealed within the discharge vessel, at a concentration of at least 0.1 ?mol O/cc.
    Type: Application
    Filed: September 28, 2009
    Publication date: January 21, 2010
    Inventors: Raghu RAMAIAH, Timothy David Russell, Ágoston BÖRÖCZKI, Natalie Marie Bate
  • LANTHANIDE OXIDE AS AN OXYGEN DISPENSER IN A METAL HALIDE LAMP
    Publication number: 20090146570
    Abstract: A lamp includes a discharge vessel. Tungsten electrodes extend into the discharge vessel. An ionizable fill is sealed within the vessel. The fill includes a buffer gas and a halide component that includes a rare earth halide. A source of oxygen which includes a lanthanide oxide is present in the discharge vessel. The source of oxygen provides oxygen for a regenerative cycle which reduces blackening of the lamp walls by tungsten from the electrodes.
    Type: Application
    Filed: November 13, 2008
    Publication date: June 11, 2009
    Inventors: Jianmin HE, Zoltan Toth, Timothy David Russell