Patents by Inventor Paul Tsui

Paul Tsui 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).

  • Publication number: 20160060907
    Abstract: Disclosed are a lock and a shackle apparatus thereof. The lock includes a lock body, and the lock body is provided with a shackle opening and a locking hole. The shackle apparatus includes a lock hook and a hook bolt while one end of the lock hook being adapted to be locked in the locking hole when the lock is locked. The lock body is further provided with a hook bolt base for accommodating the hook bolt. The hook bolt base being in communication with the shackle opening.
    Type: Application
    Filed: July 27, 2015
    Publication date: March 3, 2016
    Inventor: Yeung On Paul Tsui
  • Patent number: 6176109
    Abstract: A combination lock (100) comprising a body (10) formed with a plurality of parallel slots (20) and a bore (30) intersecting with the slots (20) to form co-axial apertures (32) through the parts of the body (10) immediately above and below each of the slots (20), each said aperture (32) above a respective slot (20) being formed with an unlocking groove (34). A plurality of dials (40) are received in the slots (20) respectively, each of which is formed around its inner side with a ring of equi-angular recesses (42). An inverted J-shaped shackle (60) having a longer limb (62) extends into the bore (30) and passes through the dials (40).
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: January 23, 2001
    Assignee: Kwong Wah Lock Manufactory Ltd.
    Inventor: Paul Tsui