Patents by Inventor Alvin (Chien-Chung) Liu

Alvin (Chien-Chung) 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).

  • Patent number: 7338019
    Abstract: An adjusting assembly for adjustably connecting a monitor (50) to a base (60), includes a first rotate assembly (10) connected with the base, a second rotate assembly (20) connected with the monitor, a support arm (30) connected with the first rotate assembly and the second rotate assembly, and a pair of transmission straps (80). The transmission straps alter the rotation of the first rotate assembly in one direction to the rotation of the second assembly in an opposite direction. The first rotate assembly generates a first torsional moment. The monitor generates a first gravity moment opposite to the first torsional moment. When the monitor rotates relative to the support arm, the first rotate assembly generates a second torsional moment to counteract a second gravity moment of the monitor relative to the support arm.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: March 4, 2008
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Alvin (Chien-Chung) Liu, Chen Lu Fan, Li-Ping Chen