Patents by Inventor William Chai

William Chai 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: 20110174788
    Abstract: A laser engraver with scanning function includes an engraving table, a control device, and a scanner. The engraving table includes a working platform and an engraving device disposed on the working platform. The engraving device is capable of moving above the working platform to perform an engraving operation. The control device is connected to the engraving device, and is used for controlling the engraving operation of the engraving device. The scanner is mounted on the engraving device and connected to the control device, and is used for scanning a workpiece placed on the working platform and transmitting scanned information to the control device, such that the control device controls the engraving device to perform an accurate engraving operation at a particular position on the workpiece.
    Type: Application
    Filed: January 21, 2010
    Publication date: July 21, 2011
    Applicant: GREAT COMPUTER CORPORATION
    Inventor: Chi Ming William Chai
  • Publication number: 20100108650
    Abstract: An automatic positioning/engraving method for a laser engraving machine is provided. A pen carriage of the laser engraving machine is moved above a provided workpiece. Before engraving, at least two positioning points on the peripheries of the workpiece are first positioned. A processor is used to calculate and determine a center for the positioning points. Finally, a driving unit is utilized to move the pen carriage to the center point and begin pattern engraving or cutting operation.
    Type: Application
    Filed: October 31, 2008
    Publication date: May 6, 2010
    Inventors: Hans HUANG, Yao-Fang Lee, William Chai