Patents by Inventor Lianli Ji

Lianli Ji 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).

  • Patent number: 6966583
    Abstract: The present invention is a gravity-sensitive latch. The latch includes a pendulum pivotally secured between the actuating button or handle and the pawl. When the latch is in a first position, gravity acting on the pendulum rotates the pendulum so that it abuts the button or handle, permitting actuation of the latch. When the latch is in a second orientation, gravity acting on the pendulum rotates the pendulum away from the button or handle, thereby preventing actuation of the latch. The latch may use a wide variety of buttons, handles, or pawl/keeper combinations.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: November 22, 2005
    Assignee: Southco, Inc.
    Inventors: Lianli Ji, Robert Straka, Gerry Clisham
  • Patent number: 6761382
    Abstract: The present invention is a gravity-sensitive latch. The latch includes a pendulum pivotally secured between the actuating button or handle and the pawl. When the latch is in a first position, gravity acting on the pendulum rotates the pendulum so that it abuts the button or handle, permitting actuation of the latch. When the latch is in a second orientation, gravity acting on the pendulum rotates the pendulum away from the button or handle, thereby preventing actuation of the latch. The latch may use a wide variety of buttons, handles, or pawl/keeper combinations.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: July 13, 2004
    Assignee: Southco, Inc.
    Inventors: Lianli Ji, Robert Straka, Gerry Clisham
  • Patent number: 6719337
    Abstract: A latch wherein latching and unlatching is accomplished by an inward push by the keeper into the latch housing. The latch uses an improved housing configuration in conjunction with improved internal components, allowing for more consistent and reliable operation.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: April 13, 2004
    Assignee: Southco, Inc.
    Inventor: Lianli Ji
  • Publication number: 20020017791
    Abstract: The present invention is a gravity-sensitive latch. The latch includes a pendulum pivotally secured between the actuating button or handle and the pawl. When the latch is in a first position, gravity acting on the pendulum rotates the pendulum so that it abuts the button or handle, permitting actuation of the latch. When the latch is in a second orientation, gravity acting on the pendulum rotates the pendulum away from the button or handle, thereby preventing actuation of the latch. The latch may use a wide variety of buttons, handles, or pawl/keeper combinations.
    Type: Application
    Filed: October 11, 2001
    Publication date: February 14, 2002
    Inventors: Lianli Ji, Robert Straka, Gerry Clisham
  • Publication number: 20010045750
    Abstract: The present invention is a gravity-sensitive latch. The latch includes a pendulum pivotally secured between the actuating button or handle and the pawl. When the latch is in a first position, gravity acting on the pendulum rotates the pendulum so that it abuts the button or handle, permitting actuation of the latch. When the latch is in a second orientation, gravity acting on the pendulum rotates the pendulum away from the button or handle, thereby preventing actuation of the latch. The latch may use a wide variety of buttons, handles, or pawl/keeper combinations.
    Type: Application
    Filed: March 7, 2001
    Publication date: November 29, 2001
    Inventors: Lianli Ji, Robert Straka, Gerry Clisham
  • Patent number: 6299223
    Abstract: A plunger latch includes a housing and a generally elongate shaft that is driven in the housing between extended and retracted positions. A spring or similar member can be provided for urging the shaft to its extended position. Also, the plunger latch can be adapted so that the shaft is retained in its extended position and/or its retracted position.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: October 9, 2001
    Assignee: Southco, Inc.
    Inventors: Lianli Ji, Ralph C. Ulisse
  • Patent number: 6238155
    Abstract: A torque screw having a screw with a head and a threaded shaft, a knob having a central longitudinal axis coaxial with the screw and a one-directional ratchet disposed between the knob and the screw that engages to allow the screw to be disengaged in a counter-clockwise direction using the knob, and engages when rotated in a clockwise direction to a predetermined torque value. Once that predetermined torque value is reached, the ratchet is caused to slip such that the knob turns relatively freely with respect to the screw.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: May 29, 2001
    Assignee: Southco, Inc.
    Inventors: Thomas V. Aukzemas, Thomas J. Ellis, Harry L. Dickerson, Lianli Ji
  • Patent number: D425395
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: May 23, 2000
    Inventor: Lianli Ji