Patents by Inventor Sung-Neng Cheng

Sung-Neng 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).

  • Hot-wire cutter
    Patent number: 8278585
    Abstract: A hot-wire cutter includes a frame, a tank supported on the frame, a first working head located on a floor of the tank, a second working head movably supported on the frame, a supporting unit supported on the frame and used to support an annular work piece, a restraining unit supported on the frame and used to clamp the annular work piece, and a rotating unit supported on the frame and used to rotate the annular work piece. Thus, a line between the first and second working heads is directed through the centers of initial apertures in the annular work piece, one after another, to facilitate precise processing of sections of the annular work piece corresponding to the initial apertures.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: October 2, 2012
    Assignee: Excetek Technologies Co., Ltd.
    Inventors: Sung-Neng Cheng, Chung-Hsien Lu, Sheng-Chih Hsu
  • Hot-wire cutter
    Publication number: 20110203436
    Abstract: A hot-wire cutter includes a frame, a tank supported on the frame, a first working head located on a floor of the tank, a second working head movably supported on the frame, a supporting unit supported on the frame and used to support an annular work piece, a restraining unit supported on the frame and used to clamp the annular work piece, and a rotating unit supported on the frame and used to rotate the annular work piece. Thus, a line between the first and second working heads is directed through the centers of initial apertures in the annular work piece, one after another, to facilitate precise processing of sections of the annular work piece corresponding to the initial apertures.
    Type: Application
    Filed: February 23, 2010
    Publication date: August 25, 2011
    Inventors: Sung-Neng Cheng, Chung-Hsien Lu, Sheng-Chih Hsu