Patents by Inventor Chang-Keng Lai

Chang-Keng Lai 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: 9257806
    Abstract: Pliers include a pair of handles, at least one arm member connected to one of the handles, a seat body secured in a receiving room of the arm member, a working jaw detachably engaged with the seat body, and a control assembly to control whether the working jaw is allowed to be released from the seat body. The working jaw defines in a side thereof an indentation to be communicated with a through hole of the seat body. The control assembly has a knob and a positioning pin. Rotation of the knob displaces the knob axially with respect to the seat body, causing the positioning pin to move between a locking position to stop the working jaw from departing from the seat body, and a releasing position where the working jaw is allowed to be removed from the seat body.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: February 9, 2016
    Inventors: Chang-Keng Lai, Chia-Mao Lai
  • Publication number: 20150162716
    Abstract: Pliers include a pair of handles, at least one arm member connected to one of the handles, a seat body secured in a receiving room of the arm member, a working jaw detachably engaged with the seat body, and a control assembly to control whether the working jaw is allowed to be released from the seat body. The working jaw defines in a side thereof an indentation to be communicated with a through hole of the seat body. The control assembly has a knob and a positioning pin. Rotation of the knob displaces the knob axially with respect to the seat body, causing the positioning pin to move between a locking position to stop the working jaw from departing from the seat body, and a releasing position where the working jaw is allowed to be removed from the seat body.
    Type: Application
    Filed: December 11, 2013
    Publication date: June 11, 2015
    Inventors: Chang-Keng Lai, Chia-Mao Lai
  • Publication number: 20090308132
    Abstract: A terminal pliers includes a first handle pivotally and relatively connected to a second handle. The first handle has a first working end formed on one end thereof. The second handle has a second working end formed on one end thereof and facially corresponding to the first working end. The first working end and the second working end respectively have a working unit mounted thereto. Two jaws are detachably mounted to a corresponding one of the two working units. The two jaws complementally abut against each other for deforming a terminal. The two jaws are detachable and replaceable.
    Type: Application
    Filed: June 16, 2008
    Publication date: December 17, 2009
    Inventors: CHANG-KENG LAI, Chia-Mao Lai
  • Patent number: 6120023
    Abstract: A random access game toy, which includes a rod member, which has a plurality of longitudinal grooves and longitudinal number bars alternatively arranged around the periphery of a top end thereof, transparent container covered on the top end of the rod member, and a set of first color balls of a first color and at least one second color ball of a second color received in the transparent container, wherein the color balls fall to the longitudinal grooves to indicate a respective number at the number bars when the rod member is held in vertical, and are received in the transparent container outside the rod member when the rod member is turned upside down.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: September 19, 2000
    Inventor: Chang-Keng Lai
  • Patent number: 5372166
    Abstract: A conventional tie-wrap is tightened and cut in a one-step operation by a tool having gripping and actuating handles pivotally secured together and a pair of guiding plates movably mounted to side panels of the actuating handle by three axle bolts which also serve to secure a blade, a tensioning spring and a torsion spring. When the handles are compressed together against the bias of the torsion spring, a bracing block secured to the gripping handle grips the tie-wrap while the actuating handle tightens the wrap around the articles to be secured. Further compressing of the actuating handle causes the blade to be urged towards the tie-wrap against the bias of the tensioning spring to cut the wrap.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: December 13, 1994
    Inventor: Chang-Keng Lai