Patents by Inventor Bert D. Cox

Bert D. Cox 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).

  • Explosion effects enhancer for fireworks
    Patent number: 5028284
    Abstract: A method and composition for enhancing the visual effect of a combustion explosion without substantially increasing the explosive force is the subject matter of this invention. A solid explosive compound is combined with a ground combustible particulate material that is characterized by a wide distribution of particle sizes. Preferably the surface area of the particles will vary by a factor of at least 500 percent and no more than 10 percent of the total number of particles will be represented by any one particle size.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: July 2, 1991
    Assignee: Chemfx, Ltd.
    Inventors: Bert D. Cox, Edmond T. Stamps