Patents by Inventor Shiu-Mei Cheng

Shiu-Mei Cheng 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: 6263768
    Abstract: A ratchet tool includes a toothed inner periphery defined in the ring-shaped head and a rotatable member is engaged with the toothed inner periphery. A recess is defined in a surface of the head and a driving member is rotatably received in the recess. A notch is defined in a side defining the recess and communicates between the recess and a central hole in the head. An elongated protrusion extends from the rotatable member and a disk is securely mounted to the protrusion. The driving member is rotatably engaged with the disk so that when rotating the driving member, the rotatable member is able to be rotated at a small angle.
    Type: Grant
    Filed: June 7, 2000
    Date of Patent: July 24, 2001
    Inventors: Jung-Sheng Huang, Yi-Ming Tung, Shiu-Mei Cheng
  • Patent number: 6145412
    Abstract: A ratchet tool includes a head and a shank extending from the head in which a ratchet and a pawl are received in the head. A rod is rotatably inserted in the the shank and a grip is connected to the distal end of the shank. The grip is detachably connected to the first end of the rod, and an actuating member is connected to the second end of the rod. The actuating member is engaged with the ratchet which is rotated by the actuating member by rotating the grip. Therefore, the ratchet together with a bit or a socket connected to the ratchet are rotated simply by rotating the grip.
    Type: Grant
    Filed: June 24, 1999
    Date of Patent: November 14, 2000
    Inventors: Shiu-Mei Cheng, Jung-Sheng Huang, Yi-Ming Tung