Patents by Inventor Simon Durand

Simon 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).

  • Method of manufacturing multi-layered propellant grains
    Patent number: 10843979
    Abstract: A method of manufacturing a multi-layered propellant grain is provided. The method of the present disclosure simplifies the setup necessary to produce multi-layered propellants by using industrial equipment that is more energy and space efficient than the machinery that is conventionally employed for such processes. The method comprises providing a first propellant formulation; providing a die configured to provide a structure having an outer shell and a hollow interior when material is extruded therethrough; extruding the first propellant formulation through said die, to produce a first propellant layer having an outer shell defining a hollow interior in the form channel having open ends; providing a second propellant formulation, said second propellant formulation being of low viscosity; injecting said second propellant formulation into said channel defined by said first propellant layer to form a second propellant layer disposed in said channel; and hardening said second propellant layer.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: November 24, 2020
    Assignee: General Dynamics Ordnance and Tactical Systems—Canada Valleyfield Inc.
    Inventors: Simon Durand, Pierre-Yves Paradis, Daniel Lepage
  • METHOD OF MANUFACTURING MULTI-LAYERED PROPELLANT GRAINS
    Publication number: 20150284301
    Abstract: A method of manufacturing a multi-layered propellant grain is provided. The method of the present disclosure simplifies the setup necessary to produce multi-layered propellants by using industrial equipment that is more energy and space efficient than the machinery that is conventionally employed for such processes. The method comprises providing a first propellant formulation; providing a die configured to provide a structure having an outer shell and a hollow interior when material is extruded therethrough; extruding the first propellant formulation through said die, to produce a first propellant layer having an outer shell defining a hollow interior in the form channel having open ends; providing a second propellant formulation, said second propellant formulation being of low viscosity; injecting said second propellant formulation into said channel defined by said first propellant layer to form a second propellant layer disposed in said channel; and hardening said second propellant layer.
    Type: Application
    Filed: January 28, 2014
    Publication date: October 8, 2015
    Applicant: General Dynamics Ordnance and Tactical Systems - Canada Valleyfield Inc.
    Inventors: Simon Durand, Pierre-Yves Paradis, Daniel Lepage