Patents by Inventor Liu Chaolu

Liu Chaolu 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: 20100096355
    Abstract: A lever type easy pull crown cap. The lever type easy pull crown cap has a body with a boss extending from a central portion that transitions into a rim with an edge. A pull-ring is fastened to the crown body without piercing the body. An inner surface of the body includes a score line extending from the edge along the rim and across the central portion towards the boss and returns outward across the central portion after travelling around the boss to terminate in a tail segment. The tail segment extends along a portion of the rim without reaching the edge. Pulling upward on the pull-ring fractures the body along the score line and separates a tear strip portion from the body, breaking the seal between the lever type easy pull crown cap and the bottle.
    Type: Application
    Filed: August 31, 2009
    Publication date: April 22, 2010
    Inventor: Liu Chaolu