Patents by Inventor Zheng-Wen Lv

Zheng-Wen Lv 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).

  • Locking device and electronic device using the same
    Patent number: 7903421
    Abstract: An electronic device comprises a printed circuit board, a heat sink and a plurality of locking devices securing the heat sink to the printed circuit board. Each locking device comprises a shaft, a knob and an elastic member. The shaft has a plurality of outer teeth protruding outwardly from an outer surface of a top end thereof. The outer teeth are arranged along an axial direction of the shaft. The knob has an inner tooth meshing with the outer teeth of the shaft. The elastic member is compressed between a bottom of the knob and the heat sink. A length of the elastic changes when the inner tooth of the knob meshes with different outer teeth along the axial direction of the shaft to adjust a pressure of the locking device on the heat sink.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: March 8, 2011
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Zheng-Wen Lv, Meng Fu, Chun-Chi Chen
  • LOCKING DEVICE AND ELECTRONIC DEVICE USING THE SAME
    Publication number: 20100239385
    Abstract: An electronic device comprises a printed circuit board, a heat sink and a plurality of locking devices securing the heat sink to the printed circuit board. Each locking device comprises a shaft, a knob and an elastic member. The shaft has a plurality of outer teeth protruding outwardly from an outer surface of a top end thereof. The outer teeth are arranged along an axial direction of the shaft. The knob has an inner tooth meshing with the outer teeth of the shaft. The elastic member is compressed between a bottom of the knob and the heat sink. A length of the elastic changes when the inner tooth of the knob meshes with different outer teeth along the axial direction of the shaft to adjust a pressure of the locking device on the heat sink.
    Type: Application
    Filed: July 6, 2009
    Publication date: September 23, 2010
    Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.
    Inventors: ZHENG-WEN LV, MENG FU, CHUN-CHI CHEN