Patents by Inventor Kuo-Huei Chien

Kuo-Huei 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).

  • Patent number: 6336731
    Abstract: A field multi-use tool structure including Ad multiple tools. An illuminating unit is disposed in the grip. The front end of the grip has a tool connecting section formed with a central socket axially rearward extending from front end thereof. One side of the tool connecting section is formed with a front and a rear radial through holes communicating with the socket. A locating pin and an engaging pin are respectively passed through the front and rear through holes. The engaging pin has a large diameter section and a small diameter section. A spring is fitted around the small diameter section. One end of each of the tools is formed with a working section with different functions, while the other end of the tool is formed with a fitting section formed with a locating split for fitting with the locating pin and the small diameter section of the engaging pin.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: January 8, 2002
    Inventor: Kuo-Huei Chien