Patents by Inventor Pierre B. Pascal

Pierre B. Pascal 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: 4250705
    Abstract: A device for joining the two stages 2 and 3 of a self-propelled engine comprises means for achieving the separation of the two stages 2 and 3 after the combustion of the pyrotechnic charge 12 of the rear stage 2 is completed, means for carrying out the ignition of the pyrotechnic charge 19 of the front stage 3.A rear part of the front stage 3 and a front part of the rear stage 2 are assembled together for sliding axial movement therebetween. A temporary connection breakable under the effect of the ignition of the rear stage 2 maintains a predetermined spacing e between the two stages. The front stage 3 includes means 22 and 23 for igniting, after a predetermined delay, a pyrotechnic charge 19 of the front stage 3 and the rear stage 2 includes means 29 for triggering the igniting means after said temporary connection is eliminated.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: February 17, 1981
    Assignees: Societe Nationale des Poudres et Explosifs, Societe Luchaire
    Inventors: Hubert A. Zante, Pierre B. Pascal, Michel E. Schilling, Jackie G. Lamic
  • Patent number: 4198896
    Abstract: A self-propelled engine, such as a rocket, is described which is intended to be launched from a tube, comprising a front stage and a rear accelerating stage, means for achieving the separation of the two stages at the end of the combustion of the propellant charge contained in the acceleration stage, said propellant charge being integral with the front wall of the rear acceleration stage, wherein the front wall includes a first fixed part and a second part capable of sliding along the axis of the engine, said front wall parts each carrying respective propellant charges separated by a partition fixed in leakproof manner to one of said parts of the front wall. The second part which slides rests against the front stage, and the charge carried by the second part has a slightly longer combustion time than that carried by the first part which is fixed.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: April 22, 1980
    Assignees: Societe Nationale des Poudres et Explosifs, Societe Luchaire
    Inventors: Jackie G. Lamic, Pierre B. Pascal, Michel E. Schilling, Hubert A. Zante