Patents by Inventor HUI-JU WU

HUI-JU WU 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: 20140345487
    Abstract: The invention relates to a fireworks bomb structure and manufacturing method thereof comprising a cover combining with an upper shell and an lower shell to form a filing chamber for accommodating effect fire powder, a sealing body combining with a base and the lower shell to form a propulsive chamber for accommodating launch powder which is interconnected to the filing chamber, and a long internal fuse with powder at both ends respectively extending to the filing chamber and propulsive chamber; thus the present invention provides a modular combination for easily filling the launch powder and effect fire powder respectively into the chambers by reversing a mold, achieving effects of timed detonation, manufacturing convenient and target accuracy.
    Type: Application
    Filed: May 21, 2013
    Publication date: November 27, 2014
    Inventors: SZU-HUA WU, MAO-JUNG WU, HUI-JU WU