Patents by Inventor Kwei-Chang Chien

Kwei-Chang Chien 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).

  • Mold seat adjusting structure of thread rolling machine
    Patent number: 6192727
    Abstract: A thread rolling machine is provided with a structure for adjusting a fixed mold seat of the machine. The structure comprises a first slide plate, a second slide plate mounted slidably on the first slide plate, and a fixed mold angle adjusting mechanism mounted on the second slide plate for adjusting the inclination angle and the blind angle of the fixed mold. The adjusting mechanism comprises an inclination angle adjusting block and a blind angle adjusting block. The blind angle adjusting block is actuated by an adjustment rod to engage in a horizontal displacement, whereas the inclination angle adjusting block is actuated by an adjustment rod to engage in a longitudinal displacement. The fixed mold is so adjusted that it is in an appropriate thread rolling position relative to the movable mold of the thread rolling machine.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: February 27, 2001
    Assignee: Hoxn Machinery Co., Ltd.
    Inventors: Kwei-Chang Chien, Steven Lin, Sheng-Chung Tseng