Patents by Inventor Chena Liao

Chena Liao 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).

  • Mold spray gun structure
    Patent number: 6543705
    Abstract: A mold spray gun structure includes a gun body, a spray head, and a paint can. The gun body is provided with a connection portion for mounting the spray head. The connection portion is formed with a locking recess which has an inner wall formed with at least one plane portion and has an opening which has two sides formed with two opposite hook portions. The spray head is formed with a neck portion locked in the locking recess. The neck portion is formed with at least one plane portion which is rested on the plane portion of the locking recess, and the hook portions are hooked and locked on the neck portion of the spray head.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: April 8, 2003
    Inventor: Chena Liao