Patents by Inventor Wang-Sing Cai

Wang-Sing Cai 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).

  • Hinge device
    Patent number: 8132291
    Abstract: A hinge device includes a bearing seat, a spherical joint, a plurality of positioning pins, and a retaining ring. The bearing seat has a containing recess. The spherical joint is rotatably disposed in the containing recess, and the surface of the spherical joint has a plurality of positioning holes. The positioning pins are disposed at the bearing seat and capable of sliding toward or away from the spherical joint. The positioning pins correspond to parts of the positioning holes respectively when the spherical joint rotates to a specific position relative to the bearing seat. The retaining ring is disposed at an opening of the containing recess of the bearing seat and surrounds the positioning pins, the retaining ring is against the positioning pins to allow the positioning pins to be fastened in the corresponding positioning holes when the spherical joint rotates to the specific position relative to the bearing seat.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: March 13, 2012
    Assignee: Pegatron Corporation
    Inventors: Chia-Ming Tsai, Shao-Tang Ma, Yi-Chen Tao, Bor-Woei Li, Wang-Sing Cai
  • HINGE DEVICE
    Publication number: 20100236020
    Abstract: A hinge device includes a bearing seat, a spherical joint, a plurality of positioning pins, and a retaining ring. The bearing seat has a containing recess. The spherical joint is rotatably disposed in the containing recess, and the surface of the spherical joint has a plurality of positioning holes. The positioning pins are disposed at the bearing seat and capable of sliding toward or away from the spherical joint. The positioning pins correspond to parts of the positioning holes respectively when the spherical joint rotates to a specific position relative to the bearing seat. The retaining ring is disposed at an opening of the containing recess of the bearing seat and surrounds the positioning pins, the retaining ring is against the positioning pins to allow the positioning pins to be fastened in the corresponding positioning holes when the spherical joint rotates to the specific position relative to the bearing seat.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 23, 2010
    Inventors: Chia-Ming Tsai, Shao-Tang Ma, Yi-Chen Tao, Bor-Woei Li, Wang-Sing Cai