Patents Assigned to Fulham Company Ltd.
  • BALLAST WITH BATTERY BACKUP
    Publication number: 20150380983
    Abstract: An emergency battery backup ballast is configured so that it can be fully assembled but in a dormant condition. The emergency battery backup ballast commences normal operation when AC power is supplied to the ballast for the first time. Then if the AC power is removed, one or more lamps (56) which are connected to the output of the ballast can be powered by the battery (54).
    Type: Application
    Filed: May 30, 2013
    Publication date: December 31, 2015
    Applicant: FULHAM COMPANY, LTD.
    Inventors: Xiaohong Chen, David Ci
  • Ballasts for fluorescent lamps
    Patent number: 8018173
    Abstract: Circuits are disclosed, for example for driving fluorescent lamps, and such circuits may form part of a ballast. First and second sensing circuits can apply respective signals to a control circuit as a function of an end-of-lamp life condition and of the number of re-strike attempts.
    Type: Grant
    Filed: September 3, 2006
    Date of Patent: September 13, 2011
    Assignee: Fulham Company Ltd.
    Inventors: Peter W. Shackle, Zhiqing Wu