Patents by Inventor Zheng Zhi Zhao

Zheng Zhi Zhao 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).

  • Compact fluorescent lamp and ballast assembly with an air gap for thermal isolation
    Patent number: 6204602
    Abstract: A fluorescent lamp and ballast assembly is designed to thermally isolate a ballast circuit from the illuminated lamp and thereby reduce the heat surrounding the ballast circuit. The fluorescent lamp of the assembly is attached to a housing that reduces the heat transferred to the ballast circuit. The housing includes a bowl-shaped member, a shield, and a thermal isolation member connected between the bowl-shaped member and the shield. The bowl-shaped member is designed to hold and encircle the electronic ballast circuit, and the shield is designed to engage and secure the fluorescent lamp and attached cathode lead wires of the invention. The thermal isolation member is connected between the bowl-shaped member and the shield, and provides an air gap between the lamp and the ballast circuit.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: March 20, 2001
    Assignee: MagneTek, Inc.
    Inventors: Kevin J. Yang, Gang Wang, Zheng Zhi Zhao, Xin Li Xu