Patents by Inventor Richard J. Durand

Richard J. Durand 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).

  • Core-forming explosive charge
    Patent number: 4922825
    Abstract: The technical sector of the invention is that of explosive charges with a re-forming coating. This explosive charge is characterized by the fact that the coating includes two superimposed and contiguous plates. The plate in contact with the air has a lower density than that of the plate in contact with the explosive matter, and its compressibility is less than or equal to 50% under a pressure of 50 Gigapascals.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: May 8, 1990
    Assignee: L'Etat Francais represente par le Delegue Ministeriel pour l'Armement
    Inventors: Julien Aubry, Richard J. Durand, Alain L. Kerdraon, Gerard Solve