Patents by Inventor Alexandre Auger

Alexandre Auger 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: 10688564
    Abstract: The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: June 23, 2020
    Assignee: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. Boulos, Jerzy W. Jurewicz, Alexandre Auger
  • Publication number: 20200171580
    Abstract: The present disclosure relates to a, process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Application
    Filed: February 7, 2020
    Publication date: June 4, 2020
    Applicant: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. Boulos, Jerzy W. Jurewicz, Alexandre Auger
  • Patent number: 10028368
    Abstract: An induction plasma torch comprises a tubular torch body, a tubular insert, a plasma confinement tube and an annular channel. The tubular torch body has upstream and downstream sections defining respective inner surfaces. The tubular insert is mounted to the inner surface of the downstream section of the tubular torch body. The plasma confinement tube is disposed in the tubular torch body, coaxial therewith. The plasma confinement tube has a tubular wall having a thickness tapering off in an axial direction of plasma flow. The annular channel is defined between, on one hand, the inner surface of the upstream section of the tubular torch body and an inner surface of the insert and, on the other hand, an outer surface of the tubular wall of the plasma confinement tube. The cooling channel carries a fluid for cooling the plasma confinement tube.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 17, 2018
    Assignee: Tekna Plasma Systems, Inc.
    Inventors: Maher I. Boulos, Jerzy W. Jurewicz, Nicolas Dignard, Alexandre Auger, Sébastien Thellend
  • Publication number: 20170326649
    Abstract: The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 16, 2017
    Applicant: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. Boulos, Jerzy W. Jurewicz, Alexandre Auger
  • Patent number: 9751129
    Abstract: The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: September 5, 2017
    Assignee: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. Boulos, Alexandre Auger, Jerzy W. Jurewicz
  • Patent number: 9718131
    Abstract: The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: August 1, 2017
    Assignee: TEKNA PLASMA SYSTEMS, INC.
    Inventors: Maher I. Boulos, Jerzy W. Jurewicz, Alexandre Auger
  • Publication number: 20170106448
    Abstract: The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Applicant: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. BOULOS, Jerzy W. JUREWICZ, Alexandre AUGER
  • Publication number: 20160381777
    Abstract: An induction plasma torch comprises a tubular torch body, a tubular insert, a plasma confinement tube and an annular channel. The tubular torch body has upstream and downstream sections defining respective inner surfaces. The tubular insert is mounted to the inner surface of the downstream section of the tubular torch body. The plasma confinement tube is disposed in the tubular torch body, coaxial therewith. The plasma confinement tube has a tubular wall having a thickness tapering off in an axial direction of plasma flow. The annular channel is defined between, on one hand, the inner surface of the upstream section of the tubular torch body and an inner surface of the insert and, on the other hand, an outer surface of the tubular wall of the plasma confinement tube. The cooling channel carries a fluid for cooling the plasma confinement tube.
    Type: Application
    Filed: June 28, 2016
    Publication date: December 29, 2016
    Applicant: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. BOULOS, Jerzy W. JUREWICZ, Nicolas DIGNARD, Alexandre AUGER, Sébastien THELLEND
  • Publication number: 20160323987
    Abstract: An induction plasma torch comprises a tubular torch body, a plasma confinement tube disposed in the tubular torch body coaxial therewith, a gas distributor head disposed at one end of the plasma confinement tube and structured to supply at least one gaseous substance into the plasma confinement tube; an inductive coupling member embedded within the tubular torch body for applying energy to the gaseous substance to produce and sustain plasma in the plasma confinement tube, and an electrically conductive capacitive shield on an inner surface of the tubular torch body. The capacitive shield is segmented into axial strips interconnected at one end. Axial grooves are machined in the inner surface of the tubular torch body, the axial grooves being interposed between the axial strips.
    Type: Application
    Filed: June 9, 2016
    Publication date: November 3, 2016
    Applicant: TEKNA PLASMA SYSTEMS INC.
    Inventors: Maher I. Boulos, Nicolas Dignard, Alexandre Auger, Jerzy Jurewicz, Sebastien Thellend
  • Patent number: 9380693
    Abstract: A plasma confinement tube for use in an induction plasma torch is disclosed. The plasma confinement tube defines a geometrical axis and an outer surface. The plasma confinement tube includes a capacitive shield comprising a film of conductive material applied to the outer surface of the plasma confinement tube and segmented into axial strips. The axial strips are interconnected at one end. Axial grooves are machined in the outer surface of the plasma confinement tube, and interposed between the axial strips. The conductive film may have a thickness smaller than a skin-depth calculated for a frequency of operation of the induction plasma torch and an electrical conductivity of the conductive material of the film.
    Type: Grant
    Filed: February 2, 2012
    Date of Patent: June 28, 2016
    Assignee: Tekna Plasma Systems Inc.
    Inventors: Maher I. Boulos, Nicolas Dignard, Alexandre Auger, Jerzy Jurewicz, Sébastien Thellend
  • Publication number: 20160175936
    Abstract: The present disclosure relates to a process and an apparatus for producing powder particles by atomization of a feed material in the form of an elongated member such as a wire, a rod or a filled tube. The feed material is introduced in a plasma torch. A forward portion of the feed material is moved from the plasma torch into an atomization nozzle of the plasma torch. A forward end of the feed material is surface melted by exposure to one or more plasma jets formed in the atomization nozzle. The one or more plasma jets being includes an annular plasma jet, a plurality of converging plasma jets, or a combination of an annular plasma jet with a plurality of converging plasma jets. Powder particles obtained using the process and apparatus are also described.
    Type: Application
    Filed: February 10, 2016
    Publication date: June 23, 2016
    Inventors: Maher I. Boulos, Jerzy W. Jurewicz, Alexandre Auger
  • Publication number: 20120261390
    Abstract: An induction plasma torch comprises a tubular torch body, a plasma confinement tube disposed in the tubular torch body coaxial therewith, a gas distributor head disposed at one end of the plasma confinement tube and structured to supply at least one gaseous substance into the plasma confinement tube; an inductive coupling member for applying energy to the gaseous substance to produce and sustain plasma in the plasma confinement tube, and a capacitive shield including a film of conductive material applied to the outer surface of the plasma confinement tube or the inner surface of the tubular torch body. The film of conductive material is segmented into axial strips interconnected at one end. The film of conductive material has a thickness smaller than a skin-depth calculated for a frequency of a current supplied to the inductive coupling member and an electrical conductivity of the conductive material of the film.
    Type: Application
    Filed: February 2, 2012
    Publication date: October 18, 2012
    Inventors: Maher I. Boulos, Nicolas Dignard, Alexandre Auger, Jerzy Jurewicz, Sébastien Thellend