Patents by Inventor Cheng-Chao TSAI

Cheng-Chao TSAI 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).

  • SANDPAPER REPLACEMENT SYSTEM
    Publication number: 20230039611
    Abstract: A system includes a loader tool to load a plate to which a sandpaper sheet is to be affixed to a surface of the plate. The system includes a sandpaper affixing tool to remove a liner from the sandpaper sheet to expose an adhesive surface of the sandpaper sheet, and to affix the sandpaper sheet to the surface of the plate using the adhesive surface of the sandpaper sheet. The system includes a flatness detector to determine whether a surface of the sandpaper sheet is sufficiently flat after the sandpaper sheet is affixed to the surface of the plate. The system includes an unloader tool to store the plate after the sandpaper sheet is affixed to the surface of the plate.
    Type: Application
    Filed: August 6, 2021
    Publication date: February 9, 2023
    Inventors: Yi-Fam SHIU, Cheng-Chao TSAI, Cheng-Lung WU, Chih-Hung HUANG, Jiun-Rong PAI