Patents by Inventor Yung-Tsai Shen

Yung-Tsai Shen 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).

  • Working platform structure
    Patent number: 7469886
    Abstract: A structure of a vacuum adsorbing working platform includes a lower body and an upper body. The lower body has a plurality of channels, and the top of the lower body has a plurality of cross grooves which extend transversely and longitudinally. The channels communicate with the grooves, and they connect to an induction pump. The upper body attached on the lower body has a plurality of ventilation holes passing through the upper body and relative to the grooves, thereby the structure of the working platform is formed which provides better suction.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: December 30, 2008
    Inventors: Yung-Tsai Shen, Yen-Ping Shen
  • Structure of a vacuum adsorbing working platform
    Publication number: 20080169593
    Abstract: A structure of a vacuum adsorbing working platform includes a lower body and an upper body. The lower body has a plurality of channels, and the top of the lower body has a plurality of cross grooves which extend transversely and longitudinally. The channels communicate with the grooves, and they connect to an induction pump. The upper body attached on the lower body has a plurality of ventilation holes passing through the upper body and relative to the grooves, thereby the structure of the working platform is formed which provides better suction.
    Type: Application
    Filed: September 5, 2007
    Publication date: July 17, 2008
    Inventors: Yung-Tsai Shen, Yen-Ping Shen