Patents by Inventor Hung-Chou LAI

Hung-Chou LAI 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: 20080301951
    Abstract: A hidden switch locating means for a gardening tool includes a pair of blades pivoted to each other, each blade containing a cutting edge and a handle; each handle being provided with a pivoting base containing a pivoting hole and multiple arc holes of different diameters and being blocked by a cap; a pivoting bolt penetrating both pivoting holes and locked up with a nut; both caps being linked to each other with multiple keys and key troughs disposed to both caps; multiple arc holes from both pivoting portions being in a relation of alternatively deflected asymmetry with both blades stretched out, and in a fully penetrating relation with both blades closing upon each other; and limitation and release of stretching and clamping of both blades being controlled by pressing both caps to change relation between keys and arc holes.
    Type: Application
    Filed: June 5, 2007
    Publication date: December 11, 2008
    Inventor: Hung-Chou LAI