Patents by Inventor Chin-Pou Yang

Chin-Pou Yang 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).

  • Structure of head shield for welding pliers
    Patent number: 4993617
    Abstract: A welding apparatus that includes a welding rod pliers connected to a portable head shield by an elongated flexible articulated tube. The person can hold the pliers in one hand, with the flexible tube acting to position the shield in a proper location for viewing the weld connection. This feature leaves the person's other hand free to manipulate a clamp or other tool for holding the work pieces in place during the welding process.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: February 19, 1991
    Assignee: Liso, Su-Land
    Inventor: Chin-Pou Yang