Patents by Inventor Etienne Comtois

Etienne Comtois 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).

  • COMBUSTIBLE CONTAINERS MANUFACTURED USING REACTIVE INJECTION MOLDING OF AZIDO POLYMERS
    Publication number: 20240083079
    Abstract: Small-, medium-, and large-caliber combustible cartridge cases and propellant combustible containers that are manufactured using reactive injection molding of azido polymers. An injection process for a single propellant combustible charge including the steps of: providing a quantity of azido bearing polymer; providing a quantity of curing agent; optionally providing a quantity of chemical blowing agent; optionally providing a quantity of fibers; optionally providing a quantity of additives and catalysts; and providing a mold defining a male cavity, a female cavity, and an injection port. The injection process further includes mixing together the azido bearing polymer, the curing agent, the optional chemical blowing agent, the optional fibers, the optional additives and catalysts, and injecting the resulting mixture into the mold.
    Type: Application
    Filed: November 17, 2023
    Publication date: March 14, 2024
    Applicant: General Dynamics Ordnance and Tactical Systems - Canada, Inc.
    Inventors: Etienne Comtois, Charles Dubois, Pierre-Yves Paradis
  • COMBUSTIBLE CONTAINERS MANUFACTURED USING REACTIVE INJECTION MOLDING OF AZIDO POLYMERS
    Publication number: 20230107457
    Abstract: Small-, medium-, and large-caliber combustible cartridge cases and propellant combustible containers that are manufactured using reactive injection molding of azido polymers. An injection process for a single propellant combustible charge including the steps of: providing a quantity of azido bearing polymer; providing a quantity of curing agent; optionally providing a quantity of chemical blowing agent; optionally providing a quantity of fibers; optionally providing a quantity of additives and catalysts; and providing a mold defining a male cavity, a female cavity, and an injection port. The injection process further includes mixing together the azido bearing polymer, the curing agent, the optional chemical blowing agent, the optional fibers, the optional additives and catalysts, and injecting the resulting mixture into the mold.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 6, 2023
    Inventors: Etienne Comtois, Charles Dubois, Pierre-Yves Paradis
  • Continuous celluloid twin screw extrusion process
    Patent number: 9539752
    Abstract: The present disclosure relates to a continuous extrusion process for producing a celluloid article including several steps and a celluloid article prepared by the continuous extrusion process.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: January 10, 2017
    Assignee: General Dynamics Ordnance and Tactical Systems—Canada Valleyfield, Inc.
    Inventors: Charles Dubois, Etienne Comtois
  • CONTINUOUS CELLULOID TWIN SCREW EXTRUSION PROCESS
    Publication number: 20150042008
    Abstract: The present disclosure relates to a continuous extrusion process for producing a celluloid article including several steps and a celluloid article prepared by the continuous extrusion process.
    Type: Application
    Filed: January 29, 2014
    Publication date: February 12, 2015
    Applicant: General Dynamics Ordnance and Tactical Systems - Canada Valleyfield Inc.
    Inventors: Charles Dubois, Etienne Comtois