Patents by Inventor Yuan-Ling Tuan

Yuan-Ling Tuan 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).

  • Structure of ball and socket joint for a vehicle steering control system
    Patent number: 4986688
    Abstract: A ball and socket joint for a vehicle steering control system, which includes an inner ball head received in a ball socket which simultaneously serves as an outer ball head and is received in a casing which has a shank connected to a drag link of a vehicle steering control system. The ball socket has a unitary connecting rod connected to a wheel steering knuckle arm. A holder plate and a spring are respectively set in the casing to support the inner and outer ball heads for free positioning of the inner ball head in the outer ball head so that steering control operation can be more smoothly performed.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: January 22, 1991
    Inventors: C. T. Tuan, Yuan-Ling Tuan