Patents by Inventor David J. Speltz

David J. Speltz 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).

  • Patent number: 4637848
    Abstract: High density water gel explosives having relatively large amounts of low density sensitizers are prepared by evenly dispersing a densifying material therethrough. Separation of the densifying material during the mixing and packaging of the water gel explosive is prevented by adding from about 0.1 to 2% comminuted paper to the water gel. It has been found that the paper greatly increases the viscosity of the composition, so that the heavier densifying materials do not settle out. The paper has also been found to contribute to the stability of the explosive gel over prolonged storage periods.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: January 20, 1987
    Assignee: Apache Powder Company
    Inventors: David A. Ciaramitaro, David J. Speltz, Jack M. Moore