Patents by Inventor Chao J. Liu

Chao J. Liu 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).

  • Electrical connector with improved latch mechanism
    Patent number: 5372518
    Abstract: A circuit board latching device (40, 41) for use with an insulative connector housing (31) includes a retaining wall (82) and a circuit board support post (52) in which the board support post (52) is positioned opposite the retaining wall (82). The latching device (40, 41) of the present invention comprises a main body portion (56) and a mounting mechanism for mounting the main body portion to the housing (31) between the retaining wall (82) and the board support post (52). Furthermore, a latch lug (71) extends from the main body portion (56) which includes a cam surface (72) which is inclined relative to the latch lug (71), and a lock surface (73) which is substantially perpendicular to the main body portion (56). Moreover, the latching device (40, 41) includes a resilient stress reducing arm (79) projecting angularly away from the main body portion (56) toward the retaining wall (82).
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: December 13, 1994
    Assignee: Foxconn International
    Inventors: Chao J. Liu, Ching-ho Lai, Jeff Chen, Sidney Lu, Ton-Yo Chien
  • Electrical connector with improved latch mechanism
    Patent number: 5286217
    Abstract: A circuit board latching device (40, 41) for use with an insulative connector housing (31) includes a retaining wall (82) and a circuit board support post (52) in which the board support post (52) is positioned opposite the retaining wall (82). The latching device (40, 41) of the present invention comprises a main body portion (56) and a mounting mechanism for mounting the main body portion to the housing (31) between the retaining wall (82) and the board support post (52). Furthermore, a latch lug (71) extends from the main body portion (56) which includes a cam surface (72) which is inclined relative to the latch lug (71), and a lock surface (73) which is substantially perpendicular to the main body portion (56). Moreover, the latching device (40, 41) includes a resilient stress reducing arm (79) projecting angularly away from the main body portion (56) toward the retaining wall (82).
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: February 15, 1994
    Assignee: Foxconn International
    Inventors: Chao J. Liu, Ching-ho Lai, Jeff Chen, Sidney Lu, Ton-Yo Chien