Patents Assigned to GDRC Limited
  • Patent number: 7199529
    Abstract: A pathway lighting system has self-contained, battery up scaled lighting modules (20), each module including at least one secondary coil. A plurality of primary coils are housed within a carrier assembly (1) together with voltage circuitry (14). Primary and secondary coils, positioned in the carrier assembly and in the lighting modules and the respectively allow electricity to flow between these members. The secondary coil output voltage is able to be rectified with the use of a rectification circuit, housed in the lighting module. Upon a mains failure, a battery charger/changeover circuit would switch the power requirements of the light sources inside the pathway lighting module over to internal back up batteries.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: April 3, 2007
    Assignee: GDRC Limited
    Inventor: David Richard Vernon-Dier
  • Patent number: D566193
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: April 8, 2008
    Assignee: GDRC Limited
    Inventors: Richard Julian Clark, David Richard Vernon-Dier
  • Patent number: D566194
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: April 8, 2008
    Assignee: GDRC Limited
    Inventors: Richard Julian Clark, David Richard Vernon-Dier
  • Patent number: D569441
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: May 20, 2008
    Assignee: GDRC Limited
    Inventors: David R. Vernondier, Richard J. Clark
  • Patent number: D575830
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: August 26, 2008
    Assignee: GDRC Limited
    Inventors: David R. Vernondier, Richard J. Clark
  • Patent number: D576214
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: September 2, 2008
    Assignee: GDRC Limited
    Inventors: David R. Vernondier, Richard J. Clark