Patents by Inventor Didier Paul

Didier Paul 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).

  • Pyrotechnic device
    Patent number: 11359545
    Abstract: A pyrotechnic device comprising a main pyrotechnic charge, a firing device for firing the main pyrotechnic charge, a discharge passage for discharging the gas generated by firing the main pyrotechnic charge, and an injector device configured to inject a cooling fluid into said gas discharge passage, so as to deliver gas, specifically for driving turbines, at temperatures that are relatively low, and a method of cooling gas generated by firing the main pyrotechnic charge by injecting the cooling fluid.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: June 14, 2022
    Assignee: Safran Helicopter Engines
    Inventors: François Danguy, Laurent Paul Lattanzio Fabbri, Romain Maurice Henri Yannick Gauthier, Didier Paul Saucereau
  • PYROTECHNIC DEVICE
    Publication number: 20190285001
    Abstract: A pyrotechnic device comprising a main pyrotechnic charge, a firing device for firing the main pyrotechnic charge, a discharge passage for discharging the gas generated by firing the main pyrotechnic charge, and an injector device configured to inject a cooling fluid into said gas discharge passage, so as to deliver gas, specifically for driving turbines, at temperatures that are relatively low, and a method of cooling gas generated by firing the main pyrotechnic charge by injecting the cooling fluid.
    Type: Application
    Filed: November 17, 2017
    Publication date: September 19, 2019
    Applicant: Safran Helicopter Engines
    Inventors: François DANGUY, Laurent Paul Lattanzio FABBRI, Romain Maurice Henri Yannick GAUTHIER, Didier Paul SAUCEREAU
  • Pickling process in an acid bath of metallic products containing titanium or at least one chemical element of the titanium family
    Patent number: 5338367
    Abstract: Pickling process in an acid bath containing an oxidant in order to enhance the pickling kinetics, wherein at least one peroxygenated derivative of titanium or at least of one element of the titanium family included in the product to be pickled is formed, the metal being ionized to a higher valency, the formation of the peroxygenated compound is controlled by measurement of the redox potential, and the quantity of oxidizing agent is limited so as to maintain an oxido-reduction potential lower than the passivation potential of the metallic product.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: August 16, 1994
    Assignee: Ugine, Aciers de Chatillon et Gueugnon
    Inventors: Dominique Henriet, Didier Paul, Laurent Prost