Patents by Inventor Ching An Chiang

Ching An Chiang 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: 20080066585
    Abstract: A single-direction operable open-end spanner includes a handle having an open end delimited by opposite jaws. One of the jaws forms a cavity delimited by a curved internal wall to receive a movable jaw block. The block is biased by a spring so that when the spanner applies a torque to tighten a threaded member; the jaw block is pushed against the internal wall by a reaction force from the threaded member to ensure proper and sound engagement between the jaw block and the treaded member. When the spanner is rotated in a reversed direction to loosen the threaded member, the jaw block is driven in a direction against the spring and away from the threaded member to form an enlarged clearance between the jaw block and threaded member to allow the jaws to slide over the side faces of the threaded member.
    Type: Application
    Filed: January 29, 2007
    Publication date: March 20, 2008
    Inventor: Ching-An CHIANG
  • Patent number: 6448516
    Abstract: A vibration induction switch includes a metal bottom holder having a top center convex, a metal top holder matched with the metal bottom holder and having a bottom center convex, a metal ball received in between the metal bottom holder and the metal top holder to switch on the circuit when the vibration induction switch is maintained immovable, or to alternatively switch on/off the circuit when the vibration induction switch is moved.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: September 10, 2002
    Inventor: Ching An Chiang
  • Patent number: 5244265
    Abstract: This invention relates to a tool container and in particular to one including a main body portion provided with two horizontal grooves at both opposite inner sides and a rack at both upper edges, a partition board inserted into an upper one of the two horizontal grooves, a drawer inserted into a lower one of the two horizontal grooves, two doors hingedly connected with the main body portion, a case provided with racks at bottom and top sides and engageable with the top of the main body portion and the top of another box, and a box engaged with the top of the case.
    Type: Grant
    Filed: May 11, 1992
    Date of Patent: September 14, 1993
    Inventor: Ching-An Chiang